Alarko Circulation Pumps are Produced in This Site
INSTALLATION POSITIONS
NOT PERMITTED
PERMITTED
Circulation
Pumps
Pump shaft must not be vertical position.
Pump shaft must be parallel position.
✓ Connect the pump to the installation as shown in the figure by making it parallel to the ground.
✓ Use isolating valves in the inlet and outlet in order to facilitate the removal of pump during repair or
maintenance.
✓ Use a thermic relay when connecting the pump to electric supply.
Alarko Circulation Pumps are developed for the heating and water circulation systems for houses, commercial and
industrial applications. These high technology products are born out of an industrial experience of half a century.
-Reliable and noiseless
-Easy to install
-Highly efficient
-Single-speed and three-speed models
-Wet rotor and glandless motors that do not need lubrication
-Long lasted
-Saving in energy
-Maintenance-free
For HCPC-AI types, additional
-Thermal protection
-Counter rotation warning and protection
-Remote control
-Operation signal LED
-Connection to an external operation LED
New design pump rod is milled and
when the impeller is installed on the
pump it is fixed with a segment. This
design makes it easy to separate the
impeller from the rod when needed.
CORRECT OPERATION
✓ Do not operate the pump without water.
✓ NEVER LUBRICATE THE PUMP
✓ Rods and bearings of ALARKO circulation pumps are water lubricated and they do not need
1
maintenance. New or idle pump rods may be throttled due to the pollutants and particles in
the water. In such cases, close the main electric switch. Remove the rotor end cap and rotate
the shaft a few rounds via screwdriver. Put the rotor end cap in place and operate the pump.
✓ Single speed pumps can be modified into three speed pumps by way of an adaptor. Notify this
in your orders.
2
3
4
ALARKO CARRIER GEBZE COMPLEX-ACGC
CAVITATION
ACGC is situated on an area of 60.500 square metres and
has a covered area of 36.800 sqare metres. The construction
of the complex started in July 1, 1999 and ended in November
1, 2000. ISO 9001 certified Main Production Centre of Alarko
Carrier has renewed its production technology and modernized
its organisation to produce Carrier air handling units, fan
coils, boilers, heating systems, burners, cooling groups,
cooling towers, unit heaters, submersible and circulation
pumps, and water boosters. Carrier produces panel radiators
at the Radiator Production Unit, which is situated on an area
of 18,000 square metres and has a covered area of 9.250
square metres at Dudullu Organized Industrial Area. Of the
total 996 employees, 650 people are employed in Alarko
Carrier production sites, 324 people in administrative, sales
and marketing departments, and 22 people in Research and
Development departments.
H
Low performance
due to cavitation
Q
NCP-Al 4/100
NCP-Al 5/125
NCP-Al 6/125
NCP-Al 8/125
NCP-Al 10/125
SRP-Al 6
SRP-Al 8
SRP-Al 10
2,1
6,9
9,9
16,2
22,2
1,9
6,8
9,8
16
22,1
2,9
7,8
10,7
17
22,3
3
7,9
10,9
17,1
23,2
2,3
7,1
10,2
16,4
22,4
3,2
8,1
11
17,3
23,4
2
6,9
9,9
16,1
22,2
1,5
6,3
9,3
15,6
22,5
1,6
8,5
9,4
15,7
21,8
1,8
6,7
9,6
15,9
21,9
1,9
6,9
9,8
16,1
22,1
2,3
7,1
10,1
16,4
22,4
1,6
6,4
9,3
15,6
21,6
1,6
6,5
9,4
15,7
21,7
2,2
7,1
10
16,3
22,3
Note: For NPVO-26-P, 53-25-P and 63-32-P, this value is to be taken as 1,5 mWc at 82°C and 3 mWc at 95°C.
MAIN PARTS (Standard Version)
NAME OF PART
MATERIAL
1. Stator Housing
GD-AlSi9Cu3
2. Pump Casing
Cast Iron GG 20
3. Rotor Can
Stainless Steel
4. Impeller
Noryl
5. Bearings
Radial-Carbon/Axial- Stainless Steel
6. O-Ring
CR
7. Shaft
Stainless Steel
8. Rotor End Cap
Brass
9. Stator Windings
Enamelled Copper Wire
The company reserves its right to alter its products due to technological developments.
ALARKO CARRIER
SANAY‹ VE T‹CARET A.fi.
GOSB-Gebze Organize Sanayi Bölgesi
fiahabettin Bilgisu Cad. 41480 Gebze-Kocaeli/TURKEY
Phone : (90)(262) 648 60 00 PBX
Telefax : (90)(262) 648 61 01
web
: www.alarko-carrier.com.tr
e-mail : info@alarko-carrier.com.tr
A.7.1.1i 140209 MiNERAL
SCP-Al 4/70
50°C
75°C
95°C
110°C
120°C
HCPC-Al 6/13
water
HCPC-Al 5/10
T
HCP-Al 6/90
Minimum required suction height
in 40°C ambient temperature at the
suction side of the pump to prevent
cavitation noise. (mWc)
HCP-Al 6/75
Pump Types
HCP-Al 4/90
Pump Data
When there is cavitation in a circulation pump, the following problems arise:
Low performance: Since the required flow conditions are not met, pump
cannot create the necessary flow rate and pressure. Upper floors cannot be
heated.
Vibration: Turbulent flow caused by air bubbles causes vibration.
Pump life is reduced: Air bubbles in the system or in the pump corrode the
pump material causes erosion.
Noise: Air bubbles, turbulence and striking of water on surfaces create noise.
HCP-Al 4/80
When the pressure at the suction end of
the circulation pump is not enough, water
changes phase to turn into gas. Gas
bubbles are carried to high pressure areas
by the flow. Vapour turns into water again
and gas bubbles causes turbulence in the
flow and water strikes the surfaces. This
process is called cavitation.
6
7
8
9
5
It is approved and certified by the Netherlands originating independent KEMA organization which test the electromagnetic
conformity of electrical devices and has the authority of approval, that our circulation pumps conform to EMC Directive
89/336/EEC.
Alarko Circulation Pumps are Produced in This Site
INSTALLATION POSITIONS
NOT PERMITTED
PERMITTED
Circulation
Pumps
Pump shaft must not be vertical position.
Pump shaft must be parallel position.
✓ Connect the pump to the installation as shown in the figure by making it parallel to the ground.
✓ Use isolating valves in the inlet and outlet in order to facilitate the removal of pump during repair or
maintenance.
✓ Use a thermic relay when connecting the pump to electric supply.
Alarko Circulation Pumps are developed for the heating and water circulation systems for houses, commercial and
industrial applications. These high technology products are born out of an industrial experience of half a century.
-Reliable and noiseless
-Easy to install
-Highly efficient
-Single-speed and three-speed models
-Wet rotor and glandless motors that do not need lubrication
-Long lasted
-Saving in energy
-Maintenance-free
For HCPC-AI types, additional
-Thermal protection
-Counter rotation warning and protection
-Remote control
-Operation signal LED
-Connection to an external operation LED
New design pump rod is milled and
when the impeller is installed on the
pump it is fixed with a segment. This
design makes it easy to separate the
impeller from the rod when needed.
CORRECT OPERATION
✓ Do not operate the pump without water.
✓ NEVER LUBRICATE THE PUMP
✓ Rods and bearings of ALARKO circulation pumps are water lubricated and they do not need
1
maintenance. New or idle pump rods may be throttled due to the pollutants and particles in
the water. In such cases, close the main electric switch. Remove the rotor end cap and rotate
the shaft a few rounds via screwdriver. Put the rotor end cap in place and operate the pump.
✓ Single speed pumps can be modified into three speed pumps by way of an adaptor. Notify this
in your orders.
2
3
4
ALARKO CARRIER GEBZE COMPLEX-ACGC
CAVITATION
ACGC is situated on an area of 60.500 square metres and
has a covered area of 36.800 sqare metres. The construction
of the complex started in July 1, 1999 and ended in November
1, 2000. ISO 9001 certified Main Production Centre of Alarko
Carrier has renewed its production technology and modernized
its organisation to produce Carrier air handling units, fan
coils, boilers, heating systems, burners, cooling groups,
cooling towers, unit heaters, submersible and circulation
pumps, and water boosters. Carrier produces panel radiators
at the Radiator Production Unit, which is situated on an area
of 18,000 square metres and has a covered area of 9.250
square metres at Dudullu Organized Industrial Area. Of the
total 996 employees, 650 people are employed in Alarko
Carrier production sites, 324 people in administrative, sales
and marketing departments, and 22 people in Research and
Development departments.
H
Low performance
due to cavitation
Q
NCP-Al 4/100
NCP-Al 5/125
NCP-Al 6/125
NCP-Al 8/125
NCP-Al 10/125
SRP-Al 6
SRP-Al 8
SRP-Al 10
2,1
6,9
9,9
16,2
22,2
1,9
6,8
9,8
16
22,1
2,9
7,8
10,7
17
22,3
3
7,9
10,9
17,1
23,2
2,3
7,1
10,2
16,4
22,4
3,2
8,1
11
17,3
23,4
2
6,9
9,9
16,1
22,2
1,5
6,3
9,3
15,6
22,5
1,6
8,5
9,4
15,7
21,8
1,8
6,7
9,6
15,9
21,9
1,9
6,9
9,8
16,1
22,1
2,3
7,1
10,1
16,4
22,4
1,6
6,4
9,3
15,6
21,6
1,6
6,5
9,4
15,7
21,7
2,2
7,1
10
16,3
22,3
Note: For NPVO-26-P, 53-25-P and 63-32-P, this value is to be taken as 1,5 mWc at 82°C and 3 mWc at 95°C.
MAIN PARTS (Standard Version)
NAME OF PART
MATERIAL
1. Stator Housing
GD-AlSi9Cu3
2. Pump Casing
Cast Iron GG 20
3. Rotor Can
Stainless Steel
4. Impeller
Noryl
5. Bearings
Radial-Carbon/Axial- Stainless Steel
6. O-Ring
CR
7. Shaft
Stainless Steel
8. Rotor End Cap
Brass
9. Stator Windings
Enamelled Copper Wire
The company reserves its right to alter its products due to technological developments.
ALARKO CARRIER
SANAY‹ VE T‹CARET A.fi.
GOSB-Gebze Organize Sanayi Bölgesi
fiahabettin Bilgisu Cad. 41480 Gebze-Kocaeli/TURKEY
Phone : (90)(262) 648 60 00 PBX
Telefax : (90)(262) 648 61 01
web
: www.alarko-carrier.com.tr
e-mail : info@alarko-carrier.com.tr
A.7.1.1i 140209 MiNERAL
SCP-Al 4/70
50°C
75°C
95°C
110°C
120°C
HCPC-Al 6/13
water
HCPC-Al 5/10
T
HCP-Al 6/90
Minimum required suction height
in 40°C ambient temperature at the
suction side of the pump to prevent
cavitation noise. (mWc)
HCP-Al 6/75
Pump Types
HCP-Al 4/90
Pump Data
When there is cavitation in a circulation pump, the following problems arise:
Low performance: Since the required flow conditions are not met, pump
cannot create the necessary flow rate and pressure. Upper floors cannot be
heated.
Vibration: Turbulent flow caused by air bubbles causes vibration.
Pump life is reduced: Air bubbles in the system or in the pump corrode the
pump material causes erosion.
Noise: Air bubbles, turbulence and striking of water on surfaces create noise.
HCP-Al 4/80
When the pressure at the suction end of
the circulation pump is not enough, water
changes phase to turn into gas. Gas
bubbles are carried to high pressure areas
by the flow. Vapour turns into water again
and gas bubbles causes turbulence in the
flow and water strikes the surfaces. This
process is called cavitation.
6
7
8
9
5
It is approved and certified by the Netherlands originating independent KEMA organization which test the electromagnetic
conformity of electrical devices and has the authority of approval, that our circulation pumps conform to EMC Directive
89/336/EEC.
Td
: The temperature of water returning to the boiler (°C)
26
5P
P
2
1
1.5
2
3
4
5
Q(m3/h)
6
GENERAL SELECTION CHARTS FOR FLANGED SINGLE SPEED CIRCULATION PUMPS
SELECTION OF FLANGED
SINGLE SPEED CIRCULATION
PUMPS
For Q= 16 m3/h, H= 5 mWc
A vertical line is drawn from point
16 of the Q axis of the “General
Selection Chart for Flanged Single
Speed Circulation Pumps”. A
horizontal line is drawn from point
5 of the H axis. The intersection
of these lines is marked as (A).
Pump type is selected according
to closest characteristic curve to
the point A. Point A is closest to
the curve of the NCP-AI 8/125
type. This pump is to be selected.
H(m)
(Tg – Td) x 1.000
Evaluation of the Required Pressure (Hm)
The pump should have sufficient pressure to be able to push the water to the most distant point of the
installation by defeating the resistance of the heating installation. Here, the pump should defeat the
total pressure that is caused by the resistance of the pipes, connection components, valves, radiators.
While the same water height will be at the inlet and outlet of the pump, the height of the building has
no effect to the pump selection procedure.
H
: Pump pressure (mWc)
R
: Pressure loss per square meter at pipe diameter (mWc/meter)
L
: Total lengths of pipe components in the installation (meter)
Z
: Resistance of connection components, valves and special devices (mWc)
A
H ≥ ∑ (R x L) + ∑ (Z)
Boiler Capacity
Up to 50 kW
Between 50-100 kW
Above 100 kW
Installation Length
Up to 100 meters
500 meters
1000 meters
Q(m3/h)
GENERAL SELECTION CHARTS FOR FLANGED THREE SPEED CIRCULATION PUMPS
H(m)
If the project of the building is not available, it is almost impossible to determine correctly the values
mentioned above.
In this case, following tables can be used to determine the required pressure approximately.
SELECTION OF FLANGED THREE
SPEED CIRCULATION PUMPS
For Q= 16 m3/h, H= 5 mWc
A vertical line is drawn from point
16 of the Q axis of the “General
Selection Chart for Flanged Three
Speed Circulation Pumps”. A
horizontal line is drawn from point
5 of the H axis. The intersection
point (A) belongs to the area that
belongs to HCP-AI 6/90 type. Select
this pump. Pump speed is
determined by marking the point
A on the “Independent
Characteristic Curves for Three
Speed Circulation Pumps”. For the
values in the example, point A is
between the speed curves II and
III. This is a suitable choice.
Necessary Pressure of the Pump
0,5–3 mWc
2–5 mWc
5–10 mWc
Necessary Pressure of the Pump
1–2 mWc
4–6 mWc
6–12 mWc
A
3
3
2
2
3.2
1
1
I
0,5
0
1,5
1
III
II
2,5
2
3,5
3
4
1.5
1
0
III
II
I
0
3
2
4
0.5
1
2.5
3
0.6
3.5
1.4
Q
K=
H
4
2.1
3
2
3.2
III
0,5
1,5
1
0.5
K
1
1.5
1.4
0.6
2
2.1
2.5
3.2
2,5
2
4.8
5
Q
K=
1
8
K
0.6
2
1.4
2.1
3
3.2
4.8
Q
K=
7.2
H
10.8
3
3
10.8
1
III
0
2
4
V(m/s)
0
6
1
K 0.6 1.4
10
8
2
2.1
3
4.8
3.2
2
16.2
0
14
16
Q(m3/h)
4
7.2
HCPC-Al 5/10
10
10.8
9
8
8
10
0.5
K
0.6 1.4
2.1
3.2
III
II
12
14
1
1.5
4.8
7.2
16
18
20
Q(m3/h)
2
HCP-Al 6/75
6
10.8
Q
K=
16.2
3
2
III
2
7
6
4
16.2
3
4
H
6
4
2
5
H
5
I
0
V(m/s)
0
Q
K=
7
16.2
1
II
12
I
0
II
I
1
1
II
I
0
0
5
10
15
20
25
30
35
0
40
0
5
10
15
20
0
1
K 0.6 1.4 2.1 3.2
12
2
4.8
3
7.2
10.8
30
Q(m3/h)
4
HCPC-Al 6/13
11
10
9
K=
7
V(m/s)
0
10
0.5
K 0.6
1.4
2.1
1
3.2
1.5
6
2
7.2
4.8
HCP-Al 6/90
9
8
K=
7
16.2
8
III
25
Q(m3/h)
V(m/s)
Q
6
H
5
Q
10.8
H
A
16.2
5
4
4
3
3
II
I
1
III
II
0
5
10
15
20
25
30
35
40
45
III
2
1
0
0
b
c
50
55 60 65
Q(m3/h)
I
0
5
10
15
20
Weight øD
~(kg) (mm)
PUMP TYPE
4
4
2
c
L
ØD
Øk
Ød
DN
●
nxm
●
nxm
●
●
L
b
ød
øk
DN
(mm) (mm)
nxm
b
(mm)
c
(mm)
h
(mm)
L
(mm)
HCP-Al 4/90
7
5
7.2
H
4
11
nxm
4
6
6
13
3,5
Q(m3/h)
3
0
3
HCP-Al 4/80
7
●
b
ØD
Øk
Ød
V(m/s)
V(m/s)
0
8
II
I
0
●
●
L
NPVO-53/25-P
5
0
nxm
Q(m /h)
2
6
1
●
nxm
3
1.5
7
TECHNICAL FEATURES
DN
6
5
Q(m3/h)
0
ØD
Øk
Ød
h
3.2
h
H
4
2.1
2
Q(m3/h)
Q
K=
A
THREADED PUMPS
H(mWc)
5
2.1
II
1
6
I
0
Q=
NPVO-63/32-P
R 1 1/2 ”
III
0
Qk
1.4
H
4
0
0.6
2
h
: The temperature of water flowing out of the boiler (°C)
P
-2
Q
K=
1.5
THREE SPEED PUMPS: HCPC-Al
Tg
53
32
1.4
7
1
THREE SPEED PUMPS: HCP-Al
VO
63-
3.2
NPVO-26-P
6
0.5
25
30
Q(m3/h)
35
THREADED, THREE
SPEED PUMPS
: Necessary pump flow rate (m /hour)
: The capacity of the boiler (kcal/hour)
VO
VO
NP
3
3
Qk
NP
NP
0.6
0
FLANGED SINGLE
SPEED PUMPS
Q
4
3.5
NPVO-26-P
2,4
R 1 1/2 ”
-
46
76
130
96
NPVO-53/25-P
2,3
R 1 1/2 ”
-
47
76
130
96
NPVO-63/32-P
2,8
R 2”
-
46
76
180
108
SCP-Al
NCP-Al
NCP-Al
NCP-Al
NCP-Al
NCP-Al
SRP-Al
SRP-Al
SRP-Al
10,2
14
19
30,5
36,5
49
19
29
45
130
130
140
160
190
210
160
190
210
100
100
110
130
150
170
130
150
170
80
80
90
110
128
148
110
128
148
4x14
4x14
4x15
4x14
4x18
4x18
4x14
4x18
4x18
62,5
84
94
126
133
133
84
100
124
101
110
109
128
128
142
110
109
128
250
254
300
340
360
350
280
330
380
157
168
202
250
250
251
190
238
262
PN6
9,2
130
100
80
71
119
220
167
PN10
10,4
PN6
12,7
150
130
110
100
88
80
PN10
14
150
110
88
86
127,6
250
174
PN6
18,3
160
130
110
PN10
19,5
185
145
122
92
132
280
221
PN6
18,3
160
130
110
PN10
19,5
185
145
122
92
132
280
221
PN6
20
140
110
90
PN10
22,4
165
125
102
101,5
-
280
221
PN6
32,7
160
130
110
PN10
35,5
185
145
122
117,5
-
340
267
4/70
4/100
5/125
6/125
8/125
10/125
6
8
10
HCP-Al 4/80
FLANGED THREE SPEED
PUMPS
Evaluation of the Necessary Flow Rate (Q)
The pump should be able to carry the heated water from the boiler to the radiators with a suitable flow
rate. Flow rate is determined using the formula below;
3
K curves: Characteristic installation curves, V(m/sec): Water speed of installation ● point: The point at which HQ is maximum
A
2.5
H(mWc)
5
7
2
H(mWc)
H
1.5
H(mWc)
Q
1
H(mWc)
K=
0.5
5
H(mWc)
6
SELECTION OF THREADED THREE
SPEED CIRCULATION PUMPS
For Q= 1,5 m3/h, H= 5 mWc
A vertical line is drawn from point
1,5 of the Q axis of the “General
Selection Chart for Threaded Three
Speed Circulation Pumps”. A
horizontal line is drawn from point
5 of the H axis. The intersection of
these lines is marked as (A). Point
A belongs to the pump type NPVO
63-32 P. After choosing this pump
type, it is necessary to determine
the speed of the pump by referring
to the “Independent Characteristic
Curves for Threaded Three Speed
Circulation Pumps”. Point A on the
curve of the 63/32 P type is marked.
For the values in the example, point
A is between the speed curves II
and III. This is a suitable choice.
H(mWc)
7
H(mWc)
2.1
INDEPENDENT CHARACTERISTIC CURVES FOR
THREADED, THREE SPEED CIRCULATION PUMPS
1.4
INDEPENDENT CHARACTERISTIC CURVES FOR FLANGED,
THREE SPEED CIRCULATION PUMPS
H(m)
It is essential to know the flow rate (Q) and necessary pressure (Hm) value for the selection of circulation
pump. These values are given in the heating project of the building and circulation pump selection is
made according to these values. If no heating project is available, the following evaluation methods can
be applied for pump selection.
0.6
H(mWc)
0
GENERAL SELECTION CHARTS FOR THREADED THREE SPEED CIRCULATION PUMPS
SINGLE SPEED PUMPS
PIPE CONNECTIONS AND DIMENSIONS
PUMP SELECTION
HCP-Al 4/90
HCP-Al 6/75
HCP-Al 6/90
HCPC-Al 5/10
HCPC-Al 6/13
ORDER NOTATION
40
40
50
65
80
100
65
80
100
40
4x14
4x18
4x14
40
4x18
4x14
65
4x18
4x14
65
4x18
4x14
50
4x18
4x14
65
4x18
Pumped liquids
-Clean, non agressive, without solid particles
-Hot water heating systems
Maximum Water Temperature: 120°C
Maximum Ambient Temperature : 40°C
Maximum Operating Pressure:
-Single speed pumps: 6 bars
-Three speed pumps: 6 bars
-Optional: 10 bars
Flanged: DN 40-DN 100
(According to DIN 2531)
Motor Insulation: Class “H”
Motor Protection: IP 41
Single-speed circulation pumps operate at
220/380 V-50Hz three-phase or 220 V
single-phase with the addition of a
capacitor, and three-speeds operate at
380 V-50 Hz three-phase
Speed Speed
Step rpm
III
II
I
III
II
I
III
II
I
-
III
II
I
III
II
I
III
II
I
III
II
I
III
II
I
III
II
I
2200
2000
1600
1850
1300
950
2250
1550
1050
2700
1380
1390
1390
1370
1400
1460
1450
1440
2430
2070
1860
2260
1950
1700
2900
2820
2700
2820
2680
2440
2670
2390
2080
2740
2490
2190
Nominal Capacitor
I(A)
I(A)
Power Capacity
3~380V 1~220V Consump.
(μF)
50Hz
50Hz
(W)
-
-
-
0,28
0,39
0,71
1,36
1,79
2,68
0,42
0,75
1,50
0,48
0,29
0,19
0,62
0,42
0,28
0,89
0,57
0,46
1,11
0,84
0,68
1,42
1,13
0,86
2,28
2,03
1,62
0,38
0,27
0,18
0,4
0,3
0,2
0,58
0,42
0,3
0,7
0,78
1,38
3,1
4,4
7,35
0,7
1,3
1,7
-
-
-
-
-
-
88
60
40
93
67
46
132
92
62
144
161
301
546
810
1252
170
310
550
213
154
105
339
245
168
352
308
266
560
493
405
730
685
516
1490
1304
1023
2,6
2,6
3,5
10
10
18
25
40
60
10
18
25
-
-
-
-
-
-
Capacitor voltage of circulation pumps must to be 400 V.
Please note the following specifications
For Three Speed Circulation Pumps
HCP-Al 4 / 80
HCPC-Al 5 / 10 in addition to model notification in order
for us to meet your requirements:
Max. head
- Flow rate (m3/h)
(mWc)
- Pressure
Three-phase (T)
Average impeller
- Voltage
Single-phase (M)
diameter (mm)
Impeller Type No
(single-phase or three-phase)
Connection Nominal Diameter
Water
Temperature
Pump Type
For Single Speed Circulation Pumps
NCP-Al 6 / 125 - T
Td
: The temperature of water returning to the boiler (°C)
26
5P
P
2
1
1.5
2
3
4
5
Q(m3/h)
6
GENERAL SELECTION CHARTS FOR FLANGED SINGLE SPEED CIRCULATION PUMPS
SELECTION OF FLANGED
SINGLE SPEED CIRCULATION
PUMPS
For Q= 16 m3/h, H= 5 mWc
A vertical line is drawn from point
16 of the Q axis of the “General
Selection Chart for Flanged Single
Speed Circulation Pumps”. A
horizontal line is drawn from point
5 of the H axis. The intersection
of these lines is marked as (A).
Pump type is selected according
to closest characteristic curve to
the point A. Point A is closest to
the curve of the NCP-AI 8/125
type. This pump is to be selected.
H(m)
(Tg – Td) x 1.000
Evaluation of the Required Pressure (Hm)
The pump should have sufficient pressure to be able to push the water to the most distant point of the
installation by defeating the resistance of the heating installation. Here, the pump should defeat the
total pressure that is caused by the resistance of the pipes, connection components, valves, radiators.
While the same water height will be at the inlet and outlet of the pump, the height of the building has
no effect to the pump selection procedure.
H
: Pump pressure (mWc)
R
: Pressure loss per square meter at pipe diameter (mWc/meter)
L
: Total lengths of pipe components in the installation (meter)
Z
: Resistance of connection components, valves and special devices (mWc)
A
H ≥ ∑ (R x L) + ∑ (Z)
Boiler Capacity
Up to 50 kW
Between 50-100 kW
Above 100 kW
Installation Length
Up to 100 meters
500 meters
1000 meters
Q(m3/h)
GENERAL SELECTION CHARTS FOR FLANGED THREE SPEED CIRCULATION PUMPS
H(m)
If the project of the building is not available, it is almost impossible to determine correctly the values
mentioned above.
In this case, following tables can be used to determine the required pressure approximately.
SELECTION OF FLANGED THREE
SPEED CIRCULATION PUMPS
For Q= 16 m3/h, H= 5 mWc
A vertical line is drawn from point
16 of the Q axis of the “General
Selection Chart for Flanged Three
Speed Circulation Pumps”. A
horizontal line is drawn from point
5 of the H axis. The intersection
point (A) belongs to the area that
belongs to HCP-AI 6/90 type. Select
this pump. Pump speed is
determined by marking the point
A on the “Independent
Characteristic Curves for Three
Speed Circulation Pumps”. For the
values in the example, point A is
between the speed curves II and
III. This is a suitable choice.
Necessary Pressure of the Pump
0,5–3 mWc
2–5 mWc
5–10 mWc
Necessary Pressure of the Pump
1–2 mWc
4–6 mWc
6–12 mWc
A
3
3
2
2
3.2
1
1
I
0,5
0
1,5
1
III
II
2,5
2
3,5
3
4
1.5
1
0
III
II
I
0
3
2
4
0.5
1
2.5
3
0.6
3.5
1.4
Q
K=
H
4
2.1
3
2
3.2
III
0,5
1,5
1
0.5
K
1
1.5
1.4
0.6
2
2.1
2.5
3.2
2,5
2
4.8
5
Q
K=
1
8
K
0.6
2
1.4
2.1
3
3.2
4.8
Q
K=
7.2
H
10.8
3
3
10.8
1
III
0
2
4
V(m/s)
0
6
1
K 0.6 1.4
10
8
2
2.1
3
4.8
3.2
2
16.2
0
14
16
Q(m3/h)
4
7.2
HCPC-Al 5/10
10
10.8
9
8
8
10
0.5
K
0.6 1.4
2.1
3.2
III
II
12
14
1
1.5
4.8
7.2
16
18
20
Q(m3/h)
2
HCP-Al 6/75
6
10.8
Q
K=
16.2
3
2
III
2
7
6
4
16.2
3
4
H
6
4
2
5
H
5
I
0
V(m/s)
0
Q
K=
7
16.2
1
II
12
I
0
II
I
1
1
II
I
0
0
5
10
15
20
25
30
35
0
40
0
5
10
15
20
0
1
K 0.6 1.4 2.1 3.2
12
2
4.8
3
7.2
10.8
30
Q(m3/h)
4
HCPC-Al 6/13
11
10
9
K=
7
V(m/s)
0
10
0.5
K 0.6
1.4
2.1
1
3.2
1.5
6
2
7.2
4.8
HCP-Al 6/90
9
8
K=
7
16.2
8
III
25
Q(m3/h)
V(m/s)
Q
6
H
5
Q
10.8
H
A
16.2
5
4
4
3
3
II
I
1
III
II
0
5
10
15
20
25
30
35
40
45
III
2
1
0
0
b
c
50
55 60 65
Q(m3/h)
I
0
5
10
15
20
Weight øD
~(kg) (mm)
PUMP TYPE
4
4
2
c
L
ØD
Øk
Ød
DN
●
nxm
●
nxm
●
●
L
b
ød
øk
DN
(mm) (mm)
nxm
b
(mm)
c
(mm)
h
(mm)
L
(mm)
HCP-Al 4/90
7
5
7.2
H
4
11
nxm
4
6
6
13
3,5
Q(m3/h)
3
0
3
HCP-Al 4/80
7
●
b
ØD
Øk
Ød
V(m/s)
V(m/s)
0
8
II
I
0
●
●
L
NPVO-53/25-P
5
0
nxm
Q(m /h)
2
6
1
●
nxm
3
1.5
7
TECHNICAL FEATURES
DN
6
5
Q(m3/h)
0
ØD
Øk
Ød
h
3.2
h
H
4
2.1
2
Q(m3/h)
Q
K=
A
THREADED PUMPS
H(mWc)
5
2.1
II
1
6
I
0
Q=
NPVO-63/32-P
R 1 1/2 ”
III
0
Qk
1.4
H
4
0
0.6
2
h
: The temperature of water flowing out of the boiler (°C)
P
-2
Q
K=
1.5
THREE SPEED PUMPS: HCPC-Al
Tg
53
32
1.4
7
1
THREE SPEED PUMPS: HCP-Al
VO
63-
3.2
NPVO-26-P
6
0.5
25
30
Q(m3/h)
35
THREADED, THREE
SPEED PUMPS
: Necessary pump flow rate (m /hour)
: The capacity of the boiler (kcal/hour)
VO
VO
NP
3
3
Qk
NP
NP
0.6
0
FLANGED SINGLE
SPEED PUMPS
Q
4
3.5
NPVO-26-P
2,4
R 1 1/2 ”
-
46
76
130
96
NPVO-53/25-P
2,3
R 1 1/2 ”
-
47
76
130
96
NPVO-63/32-P
2,8
R 2”
-
46
76
180
108
SCP-Al
NCP-Al
NCP-Al
NCP-Al
NCP-Al
NCP-Al
SRP-Al
SRP-Al
SRP-Al
10,2
14
19
30,5
36,5
49
19
29
45
130
130
140
160
190
210
160
190
210
100
100
110
130
150
170
130
150
170
80
80
90
110
128
148
110
128
148
4x14
4x14
4x15
4x14
4x18
4x18
4x14
4x18
4x18
62,5
84
94
126
133
133
84
100
124
101
110
109
128
128
142
110
109
128
250
254
300
340
360
350
280
330
380
157
168
202
250
250
251
190
238
262
PN6
9,2
130
100
80
71
119
220
167
PN10
10,4
PN6
12,7
150
130
110
100
88
80
PN10
14
150
110
88
86
127,6
250
174
PN6
18,3
160
130
110
PN10
19,5
185
145
122
92
132
280
221
PN6
18,3
160
130
110
PN10
19,5
185
145
122
92
132
280
221
PN6
20
140
110
90
PN10
22,4
165
125
102
101,5
-
280
221
PN6
32,7
160
130
110
PN10
35,5
185
145
122
117,5
-
340
267
4/70
4/100
5/125
6/125
8/125
10/125
6
8
10
HCP-Al 4/80
FLANGED THREE SPEED
PUMPS
Evaluation of the Necessary Flow Rate (Q)
The pump should be able to carry the heated water from the boiler to the radiators with a suitable flow
rate. Flow rate is determined using the formula below;
3
K curves: Characteristic installation curves, V(m/sec): Water speed of installation ● point: The point at which HQ is maximum
A
2.5
H(mWc)
5
7
2
H(mWc)
H
1.5
H(mWc)
Q
1
H(mWc)
K=
0.5
5
H(mWc)
6
SELECTION OF THREADED THREE
SPEED CIRCULATION PUMPS
For Q= 1,5 m3/h, H= 5 mWc
A vertical line is drawn from point
1,5 of the Q axis of the “General
Selection Chart for Threaded Three
Speed Circulation Pumps”. A
horizontal line is drawn from point
5 of the H axis. The intersection of
these lines is marked as (A). Point
A belongs to the pump type NPVO
63-32 P. After choosing this pump
type, it is necessary to determine
the speed of the pump by referring
to the “Independent Characteristic
Curves for Threaded Three Speed
Circulation Pumps”. Point A on the
curve of the 63/32 P type is marked.
For the values in the example, point
A is between the speed curves II
and III. This is a suitable choice.
H(mWc)
7
H(mWc)
2.1
INDEPENDENT CHARACTERISTIC CURVES FOR
THREADED, THREE SPEED CIRCULATION PUMPS
1.4
INDEPENDENT CHARACTERISTIC CURVES FOR FLANGED,
THREE SPEED CIRCULATION PUMPS
H(m)
It is essential to know the flow rate (Q) and necessary pressure (Hm) value for the selection of circulation
pump. These values are given in the heating project of the building and circulation pump selection is
made according to these values. If no heating project is available, the following evaluation methods can
be applied for pump selection.
0.6
H(mWc)
0
GENERAL SELECTION CHARTS FOR THREADED THREE SPEED CIRCULATION PUMPS
SINGLE SPEED PUMPS
PIPE CONNECTIONS AND DIMENSIONS
PUMP SELECTION
HCP-Al 4/90
HCP-Al 6/75
HCP-Al 6/90
HCPC-Al 5/10
HCPC-Al 6/13
ORDER NOTATION
40
40
50
65
80
100
65
80
100
40
4x14
4x18
4x14
40
4x18
4x14
65
4x18
4x14
65
4x18
4x14
50
4x18
4x14
65
4x18
Pumped liquids
-Clean, non agressive, without solid particles
-Hot water heating systems
Maximum Water Temperature: 120°C
Maximum Ambient Temperature : 40°C
Maximum Operating Pressure:
-Single speed pumps: 6 bars
-Three speed pumps: 6 bars
-Optional: 10 bars
Flanged: DN 40-DN 100
(According to DIN 2531)
Motor Insulation: Class “H”
Motor Protection: IP 41
Single-speed circulation pumps operate at
220/380 V-50Hz three-phase or 220 V
single-phase with the addition of a
capacitor, and three-speeds operate at
380 V-50 Hz three-phase
Speed Speed
Step rpm
III
II
I
III
II
I
III
II
I
-
III
II
I
III
II
I
III
II
I
III
II
I
III
II
I
III
II
I
2200
2000
1600
1850
1300
950
2250
1550
1050
2700
1380
1390
1390
1370
1400
1460
1450
1440
2430
2070
1860
2260
1950
1700
2900
2820
2700
2820
2680
2440
2670
2390
2080
2740
2490
2190
Nominal Capacitor
I(A)
I(A)
Power Capacity
3~380V 1~220V Consump.
(μF)
50Hz
50Hz
(W)
-
-
-
0,28
0,39
0,71
1,36
1,79
2,68
0,42
0,75
1,50
0,48
0,29
0,19
0,62
0,42
0,28
0,89
0,57
0,46
1,11
0,84
0,68
1,42
1,13
0,86
2,28
2,03
1,62
0,38
0,27
0,18
0,4
0,3
0,2
0,58
0,42
0,3
0,7
0,78
1,38
3,1
4,4
7,35
0,7
1,3
1,7
-
-
-
-
-
-
88
60
40
93
67
46
132
92
62
144
161
301
546
810
1252
170
310
550
213
154
105
339
245
168
352
308
266
560
493
405
730
685
516
1490
1304
1023
2,6
2,6
3,5
10
10
18
25
40
60
10
18
25
-
-
-
-
-
-
Capacitor voltage of circulation pumps must to be 400 V.
Please note the following specifications
For Three Speed Circulation Pumps
HCP-Al 4 / 80
HCPC-Al 5 / 10 in addition to model notification in order
for us to meet your requirements:
Max. head
- Flow rate (m3/h)
(mWc)
- Pressure
Three-phase (T)
Average impeller
- Voltage
Single-phase (M)
diameter (mm)
Impeller Type No
(single-phase or three-phase)
Connection Nominal Diameter
Water
Temperature
Pump Type
For Single Speed Circulation Pumps
NCP-Al 6 / 125 - T
Td
: The temperature of water returning to the boiler (°C)
26
5P
P
2
1
1.5
2
3
4
5
Q(m3/h)
6
GENERAL SELECTION CHARTS FOR FLANGED SINGLE SPEED CIRCULATION PUMPS
SELECTION OF FLANGED
SINGLE SPEED CIRCULATION
PUMPS
For Q= 16 m3/h, H= 5 mWc
A vertical line is drawn from point
16 of the Q axis of the “General
Selection Chart for Flanged Single
Speed Circulation Pumps”. A
horizontal line is drawn from point
5 of the H axis. The intersection
of these lines is marked as (A).
Pump type is selected according
to closest characteristic curve to
the point A. Point A is closest to
the curve of the NCP-AI 8/125
type. This pump is to be selected.
H(m)
(Tg – Td) x 1.000
Evaluation of the Required Pressure (Hm)
The pump should have sufficient pressure to be able to push the water to the most distant point of the
installation by defeating the resistance of the heating installation. Here, the pump should defeat the
total pressure that is caused by the resistance of the pipes, connection components, valves, radiators.
While the same water height will be at the inlet and outlet of the pump, the height of the building has
no effect to the pump selection procedure.
H
: Pump pressure (mWc)
R
: Pressure loss per square meter at pipe diameter (mWc/meter)
L
: Total lengths of pipe components in the installation (meter)
Z
: Resistance of connection components, valves and special devices (mWc)
A
H ≥ ∑ (R x L) + ∑ (Z)
Boiler Capacity
Up to 50 kW
Between 50-100 kW
Above 100 kW
Installation Length
Up to 100 meters
500 meters
1000 meters
Q(m3/h)
GENERAL SELECTION CHARTS FOR FLANGED THREE SPEED CIRCULATION PUMPS
H(m)
If the project of the building is not available, it is almost impossible to determine correctly the values
mentioned above.
In this case, following tables can be used to determine the required pressure approximately.
SELECTION OF FLANGED THREE
SPEED CIRCULATION PUMPS
For Q= 16 m3/h, H= 5 mWc
A vertical line is drawn from point
16 of the Q axis of the “General
Selection Chart for Flanged Three
Speed Circulation Pumps”. A
horizontal line is drawn from point
5 of the H axis. The intersection
point (A) belongs to the area that
belongs to HCP-AI 6/90 type. Select
this pump. Pump speed is
determined by marking the point
A on the “Independent
Characteristic Curves for Three
Speed Circulation Pumps”. For the
values in the example, point A is
between the speed curves II and
III. This is a suitable choice.
Necessary Pressure of the Pump
0,5–3 mWc
2–5 mWc
5–10 mWc
Necessary Pressure of the Pump
1–2 mWc
4–6 mWc
6–12 mWc
A
3
3
2
2
3.2
1
1
I
0,5
0
1,5
1
III
II
2,5
2
3,5
3
4
1.5
1
0
III
II
I
0
3
2
4
0.5
1
2.5
3
0.6
3.5
1.4
Q
K=
H
4
2.1
3
2
3.2
III
0,5
1,5
1
0.5
K
1
1.5
1.4
0.6
2
2.1
2.5
3.2
2,5
2
4.8
5
Q
K=
1
8
K
0.6
2
1.4
2.1
3
3.2
4.8
Q
K=
7.2
H
10.8
3
3
10.8
1
III
0
2
4
V(m/s)
0
6
1
K 0.6 1.4
10
8
2
2.1
3
4.8
3.2
2
16.2
0
14
16
Q(m3/h)
4
7.2
HCPC-Al 5/10
10
10.8
9
8
8
10
0.5
K
0.6 1.4
2.1
3.2
III
II
12
14
1
1.5
4.8
7.2
16
18
20
Q(m3/h)
2
HCP-Al 6/75
6
10.8
Q
K=
16.2
3
2
III
2
7
6
4
16.2
3
4
H
6
4
2
5
H
5
I
0
V(m/s)
0
Q
K=
7
16.2
1
II
12
I
0
II
I
1
1
II
I
0
0
5
10
15
20
25
30
35
0
40
0
5
10
15
20
0
1
K 0.6 1.4 2.1 3.2
12
2
4.8
3
7.2
10.8
30
Q(m3/h)
4
HCPC-Al 6/13
11
10
9
K=
7
V(m/s)
0
10
0.5
K 0.6
1.4
2.1
1
3.2
1.5
6
2
7.2
4.8
HCP-Al 6/90
9
8
K=
7
16.2
8
III
25
Q(m3/h)
V(m/s)
Q
6
H
5
Q
10.8
H
A
16.2
5
4
4
3
3
II
I
1
III
II
0
5
10
15
20
25
30
35
40
45
III
2
1
0
0
b
c
50
55 60 65
Q(m3/h)
I
0
5
10
15
20
Weight øD
~(kg) (mm)
PUMP TYPE
4
4
2
c
L
ØD
Øk
Ød
DN
●
nxm
●
nxm
●
●
L
b
ød
øk
DN
(mm) (mm)
nxm
b
(mm)
c
(mm)
h
(mm)
L
(mm)
HCP-Al 4/90
7
5
7.2
H
4
11
nxm
4
6
6
13
3,5
Q(m3/h)
3
0
3
HCP-Al 4/80
7
●
b
ØD
Øk
Ød
V(m/s)
V(m/s)
0
8
II
I
0
●
●
L
NPVO-53/25-P
5
0
nxm
Q(m /h)
2
6
1
●
nxm
3
1.5
7
TECHNICAL FEATURES
DN
6
5
Q(m3/h)
0
ØD
Øk
Ød
h
3.2
h
H
4
2.1
2
Q(m3/h)
Q
K=
A
THREADED PUMPS
H(mWc)
5
2.1
II
1
6
I
0
Q=
NPVO-63/32-P
R 1 1/2 ”
III
0
Qk
1.4
H
4
0
0.6
2
h
: The temperature of water flowing out of the boiler (°C)
P
-2
Q
K=
1.5
THREE SPEED PUMPS: HCPC-Al
Tg
53
32
1.4
7
1
THREE SPEED PUMPS: HCP-Al
VO
63-
3.2
NPVO-26-P
6
0.5
25
30
Q(m3/h)
35
THREADED, THREE
SPEED PUMPS
: Necessary pump flow rate (m /hour)
: The capacity of the boiler (kcal/hour)
VO
VO
NP
3
3
Qk
NP
NP
0.6
0
FLANGED SINGLE
SPEED PUMPS
Q
4
3.5
NPVO-26-P
2,4
R 1 1/2 ”
-
46
76
130
96
NPVO-53/25-P
2,3
R 1 1/2 ”
-
47
76
130
96
NPVO-63/32-P
2,8
R 2”
-
46
76
180
108
SCP-Al
NCP-Al
NCP-Al
NCP-Al
NCP-Al
NCP-Al
SRP-Al
SRP-Al
SRP-Al
10,2
14
19
30,5
36,5
49
19
29
45
130
130
140
160
190
210
160
190
210
100
100
110
130
150
170
130
150
170
80
80
90
110
128
148
110
128
148
4x14
4x14
4x15
4x14
4x18
4x18
4x14
4x18
4x18
62,5
84
94
126
133
133
84
100
124
101
110
109
128
128
142
110
109
128
250
254
300
340
360
350
280
330
380
157
168
202
250
250
251
190
238
262
PN6
9,2
130
100
80
71
119
220
167
PN10
10,4
PN6
12,7
150
130
110
100
88
80
PN10
14
150
110
88
86
127,6
250
174
PN6
18,3
160
130
110
PN10
19,5
185
145
122
92
132
280
221
PN6
18,3
160
130
110
PN10
19,5
185
145
122
92
132
280
221
PN6
20
140
110
90
PN10
22,4
165
125
102
101,5
-
280
221
PN6
32,7
160
130
110
PN10
35,5
185
145
122
117,5
-
340
267
4/70
4/100
5/125
6/125
8/125
10/125
6
8
10
HCP-Al 4/80
FLANGED THREE SPEED
PUMPS
Evaluation of the Necessary Flow Rate (Q)
The pump should be able to carry the heated water from the boiler to the radiators with a suitable flow
rate. Flow rate is determined using the formula below;
3
K curves: Characteristic installation curves, V(m/sec): Water speed of installation ● point: The point at which HQ is maximum
A
2.5
H(mWc)
5
7
2
H(mWc)
H
1.5
H(mWc)
Q
1
H(mWc)
K=
0.5
5
H(mWc)
6
SELECTION OF THREADED THREE
SPEED CIRCULATION PUMPS
For Q= 1,5 m3/h, H= 5 mWc
A vertical line is drawn from point
1,5 of the Q axis of the “General
Selection Chart for Threaded Three
Speed Circulation Pumps”. A
horizontal line is drawn from point
5 of the H axis. The intersection of
these lines is marked as (A). Point
A belongs to the pump type NPVO
63-32 P. After choosing this pump
type, it is necessary to determine
the speed of the pump by referring
to the “Independent Characteristic
Curves for Threaded Three Speed
Circulation Pumps”. Point A on the
curve of the 63/32 P type is marked.
For the values in the example, point
A is between the speed curves II
and III. This is a suitable choice.
H(mWc)
7
H(mWc)
2.1
INDEPENDENT CHARACTERISTIC CURVES FOR
THREADED, THREE SPEED CIRCULATION PUMPS
1.4
INDEPENDENT CHARACTERISTIC CURVES FOR FLANGED,
THREE SPEED CIRCULATION PUMPS
H(m)
It is essential to know the flow rate (Q) and necessary pressure (Hm) value for the selection of circulation
pump. These values are given in the heating project of the building and circulation pump selection is
made according to these values. If no heating project is available, the following evaluation methods can
be applied for pump selection.
0.6
H(mWc)
0
GENERAL SELECTION CHARTS FOR THREADED THREE SPEED CIRCULATION PUMPS
SINGLE SPEED PUMPS
PIPE CONNECTIONS AND DIMENSIONS
PUMP SELECTION
HCP-Al 4/90
HCP-Al 6/75
HCP-Al 6/90
HCPC-Al 5/10
HCPC-Al 6/13
ORDER NOTATION
40
40
50
65
80
100
65
80
100
40
4x14
4x18
4x14
40
4x18
4x14
65
4x18
4x14
65
4x18
4x14
50
4x18
4x14
65
4x18
Pumped liquids
-Clean, non agressive, without solid particles
-Hot water heating systems
Maximum Water Temperature: 120°C
Maximum Ambient Temperature : 40°C
Maximum Operating Pressure:
-Single speed pumps: 6 bars
-Three speed pumps: 6 bars
-Optional: 10 bars
Flanged: DN 40-DN 100
(According to DIN 2531)
Motor Insulation: Class “H”
Motor Protection: IP 41
Single-speed circulation pumps operate at
220/380 V-50Hz three-phase or 220 V
single-phase with the addition of a
capacitor, and three-speeds operate at
380 V-50 Hz three-phase
Speed Speed
Step rpm
III
II
I
III
II
I
III
II
I
-
III
II
I
III
II
I
III
II
I
III
II
I
III
II
I
III
II
I
2200
2000
1600
1850
1300
950
2250
1550
1050
2700
1380
1390
1390
1370
1400
1460
1450
1440
2430
2070
1860
2260
1950
1700
2900
2820
2700
2820
2680
2440
2670
2390
2080
2740
2490
2190
Nominal Capacitor
I(A)
I(A)
Power Capacity
3~380V 1~220V Consump.
(μF)
50Hz
50Hz
(W)
-
-
-
0,28
0,39
0,71
1,36
1,79
2,68
0,42
0,75
1,50
0,48
0,29
0,19
0,62
0,42
0,28
0,89
0,57
0,46
1,11
0,84
0,68
1,42
1,13
0,86
2,28
2,03
1,62
0,38
0,27
0,18
0,4
0,3
0,2
0,58
0,42
0,3
0,7
0,78
1,38
3,1
4,4
7,35
0,7
1,3
1,7
-
-
-
-
-
-
88
60
40
93
67
46
132
92
62
144
161
301
546
810
1252
170
310
550
213
154
105
339
245
168
352
308
266
560
493
405
730
685
516
1490
1304
1023
2,6
2,6
3,5
10
10
18
25
40
60
10
18
25
-
-
-
-
-
-
Capacitor voltage of circulation pumps must to be 400 V.
Please note the following specifications
For Three Speed Circulation Pumps
HCP-Al 4 / 80
HCPC-Al 5 / 10 in addition to model notification in order
for us to meet your requirements:
Max. head
- Flow rate (m3/h)
(mWc)
- Pressure
Three-phase (T)
Average impeller
- Voltage
Single-phase (M)
diameter (mm)
Impeller Type No
(single-phase or three-phase)
Connection Nominal Diameter
Water
Temperature
Pump Type
For Single Speed Circulation Pumps
NCP-Al 6 / 125 - T
Td
: The temperature of water returning to the boiler (°C)
26
5P
P
2
1
1.5
2
3
4
5
Q(m3/h)
6
GENERAL SELECTION CHARTS FOR FLANGED SINGLE SPEED CIRCULATION PUMPS
SELECTION OF FLANGED
SINGLE SPEED CIRCULATION
PUMPS
For Q= 16 m3/h, H= 5 mWc
A vertical line is drawn from point
16 of the Q axis of the “General
Selection Chart for Flanged Single
Speed Circulation Pumps”. A
horizontal line is drawn from point
5 of the H axis. The intersection
of these lines is marked as (A).
Pump type is selected according
to closest characteristic curve to
the point A. Point A is closest to
the curve of the NCP-AI 8/125
type. This pump is to be selected.
H(m)
(Tg – Td) x 1.000
Evaluation of the Required Pressure (Hm)
The pump should have sufficient pressure to be able to push the water to the most distant point of the
installation by defeating the resistance of the heating installation. Here, the pump should defeat the
total pressure that is caused by the resistance of the pipes, connection components, valves, radiators.
While the same water height will be at the inlet and outlet of the pump, the height of the building has
no effect to the pump selection procedure.
H
: Pump pressure (mWc)
R
: Pressure loss per square meter at pipe diameter (mWc/meter)
L
: Total lengths of pipe components in the installation (meter)
Z
: Resistance of connection components, valves and special devices (mWc)
A
H ≥ ∑ (R x L) + ∑ (Z)
Boiler Capacity
Up to 50 kW
Between 50-100 kW
Above 100 kW
Installation Length
Up to 100 meters
500 meters
1000 meters
Q(m3/h)
GENERAL SELECTION CHARTS FOR FLANGED THREE SPEED CIRCULATION PUMPS
H(m)
If the project of the building is not available, it is almost impossible to determine correctly the values
mentioned above.
In this case, following tables can be used to determine the required pressure approximately.
SELECTION OF FLANGED THREE
SPEED CIRCULATION PUMPS
For Q= 16 m3/h, H= 5 mWc
A vertical line is drawn from point
16 of the Q axis of the “General
Selection Chart for Flanged Three
Speed Circulation Pumps”. A
horizontal line is drawn from point
5 of the H axis. The intersection
point (A) belongs to the area that
belongs to HCP-AI 6/90 type. Select
this pump. Pump speed is
determined by marking the point
A on the “Independent
Characteristic Curves for Three
Speed Circulation Pumps”. For the
values in the example, point A is
between the speed curves II and
III. This is a suitable choice.
Necessary Pressure of the Pump
0,5–3 mWc
2–5 mWc
5–10 mWc
Necessary Pressure of the Pump
1–2 mWc
4–6 mWc
6–12 mWc
A
3
3
2
2
3.2
1
1
I
0,5
0
1,5
1
III
II
2,5
2
3,5
3
4
1.5
1
0
III
II
I
0
3
2
4
0.5
1
2.5
3
0.6
3.5
1.4
Q
K=
H
4
2.1
3
2
3.2
III
0,5
1,5
1
0.5
K
1
1.5
1.4
0.6
2
2.1
2.5
3.2
2,5
2
4.8
5
Q
K=
1
8
K
0.6
2
1.4
2.1
3
3.2
4.8
Q
K=
7.2
H
10.8
3
3
10.8
1
III
0
2
4
V(m/s)
0
6
1
K 0.6 1.4
10
8
2
2.1
3
4.8
3.2
2
16.2
0
14
16
Q(m3/h)
4
7.2
HCPC-Al 5/10
10
10.8
9
8
8
10
0.5
K
0.6 1.4
2.1
3.2
III
II
12
14
1
1.5
4.8
7.2
16
18
20
Q(m3/h)
2
HCP-Al 6/75
6
10.8
Q
K=
16.2
3
2
III
2
7
6
4
16.2
3
4
H
6
4
2
5
H
5
I
0
V(m/s)
0
Q
K=
7
16.2
1
II
12
I
0
II
I
1
1
II
I
0
0
5
10
15
20
25
30
35
0
40
0
5
10
15
20
0
1
K 0.6 1.4 2.1 3.2
12
2
4.8
3
7.2
10.8
30
Q(m3/h)
4
HCPC-Al 6/13
11
10
9
K=
7
V(m/s)
0
10
0.5
K 0.6
1.4
2.1
1
3.2
1.5
6
2
7.2
4.8
HCP-Al 6/90
9
8
K=
7
16.2
8
III
25
Q(m3/h)
V(m/s)
Q
6
H
5
Q
10.8
H
A
16.2
5
4
4
3
3
II
I
1
III
II
0
5
10
15
20
25
30
35
40
45
III
2
1
0
0
b
c
50
55 60 65
Q(m3/h)
I
0
5
10
15
20
Weight øD
~(kg) (mm)
PUMP TYPE
4
4
2
c
L
ØD
Øk
Ød
DN
●
nxm
●
nxm
●
●
L
b
ød
øk
DN
(mm) (mm)
nxm
b
(mm)
c
(mm)
h
(mm)
L
(mm)
HCP-Al 4/90
7
5
7.2
H
4
11
nxm
4
6
6
13
3,5
Q(m3/h)
3
0
3
HCP-Al 4/80
7
●
b
ØD
Øk
Ød
V(m/s)
V(m/s)
0
8
II
I
0
●
●
L
NPVO-53/25-P
5
0
nxm
Q(m /h)
2
6
1
●
nxm
3
1.5
7
TECHNICAL FEATURES
DN
6
5
Q(m3/h)
0
ØD
Øk
Ød
h
3.2
h
H
4
2.1
2
Q(m3/h)
Q
K=
A
THREADED PUMPS
H(mWc)
5
2.1
II
1
6
I
0
Q=
NPVO-63/32-P
R 1 1/2 ”
III
0
Qk
1.4
H
4
0
0.6
2
h
: The temperature of water flowing out of the boiler (°C)
P
-2
Q
K=
1.5
THREE SPEED PUMPS: HCPC-Al
Tg
53
32
1.4
7
1
THREE SPEED PUMPS: HCP-Al
VO
63-
3.2
NPVO-26-P
6
0.5
25
30
Q(m3/h)
35
THREADED, THREE
SPEED PUMPS
: Necessary pump flow rate (m /hour)
: The capacity of the boiler (kcal/hour)
VO
VO
NP
3
3
Qk
NP
NP
0.6
0
FLANGED SINGLE
SPEED PUMPS
Q
4
3.5
NPVO-26-P
2,4
R 1 1/2 ”
-
46
76
130
96
NPVO-53/25-P
2,3
R 1 1/2 ”
-
47
76
130
96
NPVO-63/32-P
2,8
R 2”
-
46
76
180
108
SCP-Al
NCP-Al
NCP-Al
NCP-Al
NCP-Al
NCP-Al
SRP-Al
SRP-Al
SRP-Al
10,2
14
19
30,5
36,5
49
19
29
45
130
130
140
160
190
210
160
190
210
100
100
110
130
150
170
130
150
170
80
80
90
110
128
148
110
128
148
4x14
4x14
4x15
4x14
4x18
4x18
4x14
4x18
4x18
62,5
84
94
126
133
133
84
100
124
101
110
109
128
128
142
110
109
128
250
254
300
340
360
350
280
330
380
157
168
202
250
250
251
190
238
262
PN6
9,2
130
100
80
71
119
220
167
PN10
10,4
PN6
12,7
150
130
110
100
88
80
PN10
14
150
110
88
86
127,6
250
174
PN6
18,3
160
130
110
PN10
19,5
185
145
122
92
132
280
221
PN6
18,3
160
130
110
PN10
19,5
185
145
122
92
132
280
221
PN6
20
140
110
90
PN10
22,4
165
125
102
101,5
-
280
221
PN6
32,7
160
130
110
PN10
35,5
185
145
122
117,5
-
340
267
4/70
4/100
5/125
6/125
8/125
10/125
6
8
10
HCP-Al 4/80
FLANGED THREE SPEED
PUMPS
Evaluation of the Necessary Flow Rate (Q)
The pump should be able to carry the heated water from the boiler to the radiators with a suitable flow
rate. Flow rate is determined using the formula below;
3
K curves: Characteristic installation curves, V(m/sec): Water speed of installation ● point: The point at which HQ is maximum
A
2.5
H(mWc)
5
7
2
H(mWc)
H
1.5
H(mWc)
Q
1
H(mWc)
K=
0.5
5
H(mWc)
6
SELECTION OF THREADED THREE
SPEED CIRCULATION PUMPS
For Q= 1,5 m3/h, H= 5 mWc
A vertical line is drawn from point
1,5 of the Q axis of the “General
Selection Chart for Threaded Three
Speed Circulation Pumps”. A
horizontal line is drawn from point
5 of the H axis. The intersection of
these lines is marked as (A). Point
A belongs to the pump type NPVO
63-32 P. After choosing this pump
type, it is necessary to determine
the speed of the pump by referring
to the “Independent Characteristic
Curves for Threaded Three Speed
Circulation Pumps”. Point A on the
curve of the 63/32 P type is marked.
For the values in the example, point
A is between the speed curves II
and III. This is a suitable choice.
H(mWc)
7
H(mWc)
2.1
INDEPENDENT CHARACTERISTIC CURVES FOR
THREADED, THREE SPEED CIRCULATION PUMPS
1.4
INDEPENDENT CHARACTERISTIC CURVES FOR FLANGED,
THREE SPEED CIRCULATION PUMPS
H(m)
It is essential to know the flow rate (Q) and necessary pressure (Hm) value for the selection of circulation
pump. These values are given in the heating project of the building and circulation pump selection is
made according to these values. If no heating project is available, the following evaluation methods can
be applied for pump selection.
0.6
H(mWc)
0
GENERAL SELECTION CHARTS FOR THREADED THREE SPEED CIRCULATION PUMPS
SINGLE SPEED PUMPS
PIPE CONNECTIONS AND DIMENSIONS
PUMP SELECTION
HCP-Al 4/90
HCP-Al 6/75
HCP-Al 6/90
HCPC-Al 5/10
HCPC-Al 6/13
ORDER NOTATION
40
40
50
65
80
100
65
80
100
40
4x14
4x18
4x14
40
4x18
4x14
65
4x18
4x14
65
4x18
4x14
50
4x18
4x14
65
4x18
Pumped liquids
-Clean, non agressive, without solid particles
-Hot water heating systems
Maximum Water Temperature: 120°C
Maximum Ambient Temperature : 40°C
Maximum Operating Pressure:
-Single speed pumps: 6 bars
-Three speed pumps: 6 bars
-Optional: 10 bars
Flanged: DN 40-DN 100
(According to DIN 2531)
Motor Insulation: Class “H”
Motor Protection: IP 41
Single-speed circulation pumps operate at
220/380 V-50Hz three-phase or 220 V
single-phase with the addition of a
capacitor, and three-speeds operate at
380 V-50 Hz three-phase
Speed Speed
Step rpm
III
II
I
III
II
I
III
II
I
-
III
II
I
III
II
I
III
II
I
III
II
I
III
II
I
III
II
I
2200
2000
1600
1850
1300
950
2250
1550
1050
2700
1380
1390
1390
1370
1400
1400
1450
1440
2430
2070
1860
2260
1950
1700
2900
2820
2700
2820
2680
2440
2670
2390
2080
2740
2490
2190
Nominal Capacitor
I(A)
I(A)
Power Capacity
3~380V 1~220V Consump.
(μF)
50Hz
50Hz
(W)
-
-
-
0,28
0,39
0,71
1,36
1,79
2,68
0,34
0,75
1,50
0,48
0,29
0,19
0,62
0,42
0,28
0,89
0,57
0,46
1,11
0,84
0,68
1,42
1,13
0,86
2,28
2,03
1,62
0,38
0,27
0,18
0,4
0,3
0,2
0,58
0,42
0,3
0,7
0,78
1,38
3,1
4,4
7,35
1,00
1,3
1,7
-
-
-
-
-
-
88
60
40
93
67
46
132
92
62
144
161
301
546
810
1252
92
310
550
213
154
105
339
245
168
352
308
266
560
493
405
730
685
516
1490
1304
1023
2,6
2,6
3,5
10
10
18
25
40
60
3,5
18
25
-
-
-
-
-
-
Capacitor voltage of circulation pumps must to be 400 V.
Please note the following specifications
For Three Speed Circulation Pumps
HCP-Al 4 / 80
HCPC-Al 5 / 10 in addition to model notification in order
for us to meet your requirements:
Max. head
- Flow rate (m3/h)
(mWc)
- Pressure
Three-phase (T)
Average impeller
- Voltage
Single-phase (M)
diameter (mm)
Impeller Type No
(single-phase or three-phase)
Connection Nominal Diameter
Water
Temperature
Pump Type
For Single Speed Circulation Pumps
NCP-Al 6 / 125 - T
Alarko Circulation Pumps are Produced in This Site
INSTALLATION POSITIONS
NOT PERMITTED
PERMITTED
Circulation
Pumps
Pump shaft must not be vertical position.
Pump shaft must be parallel position.
✓ Connect the pump to the installation as shown in the figure by making it parallel to the ground.
✓ Use isolating valves in the inlet and outlet in order to facilitate the removal of pump during repair or
maintenance.
✓ Use a thermic relay when connecting the pump to electric supply.
Alarko Circulation Pumps are developed for the heating and water circulation systems for houses, commercial and
industrial applications. These high technology products are born out of an industrial experience of half a century.
-Reliable and noiseless
-Easy to install
-Highly efficient
-Single-speed and three-speed models
-Wet rotor and glandless motors that do not need lubrication
-Long lasted
-Saving in energy
-Maintenance-free
For HCPC-AI types, additional
-Thermal protection
-Counter rotation warning and protection
-Remote control
-Operation signal LED
-Connection to an external operation LED
New design pump rod is milled and
when the impeller is installed on the
pump it is fixed with a segment. This
design makes it easy to separate the
impeller from the rod when needed.
CORRECT OPERATION
✓ Do not operate the pump without water.
✓ NEVER LUBRICATE THE PUMP
✓ Rods and bearings of ALARKO circulation pumps are water lubricated and they do not need
1
maintenance. New or idle pump rods may be throttled due to the pollutants and particles in
the water. In such cases, close the main electric switch. Remove the rotor end cap and rotate
the shaft a few rounds via screwdriver. Put the rotor end cap in place and operate the pump.
✓ Single speed pumps can be modified into three speed pumps by way of an adaptor. Notify this
in your orders.
2
3
4
ALARKO CARRIER GEBZE COMPLEX-ACGC
CAVITATION
ACGC is situated on an area of 60.500 square metres and
has a covered area of 36.800 sqare metres. The construction
of the complex started in July 1, 1999 and ended in November
1, 2000. ISO 9001 certified Main Production Centre of Alarko
Carrier has renewed its production technology and modernized
its organisation to produce Carrier air handling units, fan
coils, boilers, heating systems, burners, cooling groups,
cooling towers, unit heaters, submersible and circulation
pumps, and water boosters. Carrier produces panel radiators
at the Radiator Production Unit, which is situated on an area
of 18,000 square metres and has a covered area of 9.250
square metres at Dudullu Organized Industrial Area. Of the
total 996 employees, 650 people are employed in Alarko
Carrier production sites, 324 people in administrative, sales
and marketing departments, and 22 people in Research and
Development departments.
H
Low performance
due to cavitation
Q
NCP-Al 4/100
NCP-Al 5/125
NCP-Al 6/125
NCP-Al 8/125
NCP-Al 10/125
SRP-Al 6
SRP-Al 8
SRP-Al 10
2,1
6,9
9,9
16,2
22,2
1,9
6,8
9,8
16
22,1
2,9
7,8
10,7
17
22,3
3
7,9
10,9
17,1
23,2
2,3
7,1
10,2
16,4
22,4
3,2
8,1
11
17,3
23,4
2
6,9
9,9
16,1
22,2
1,5
6,3
9,3
15,6
22,5
1,6
8,5
9,4
15,7
21,8
1,8
6,7
9,6
15,9
21,9
1,9
6,9
9,8
16,1
22,1
2,3
7,1
10,1
16,4
22,4
1,6
6,4
9,3
15,6
21,6
1,6
6,5
9,4
15,7
21,7
2,2
7,1
10
16,3
22,3
Note: For NPVO-26-P, 53-25-P and 63-32-P, this value is to be taken as 1,5 mWc at 82°C and 3 mWc at 95°C.
MAIN PARTS (Standard Version)
NAME OF PART
MATERIAL
1. Stator Housing
GD-AlSi9Cu3
2. Pump Casing
Cast Iron GG 20
3. Rotor Can
Stainless Steel
4. Impeller
Noryl
5. Bearings
Radial-Carbon/Axial- Stainless Steel
6. O-Ring
CR
7. Shaft
Stainless Steel
8. Rotor End Cap
Brass
9. Stator Windings
Enamelled Copper Wire
The company reserves its right to alter its products due to technological developments.
ALARKO CARRIER
SANAY‹ VE T‹CARET A.fi.
GOSB-Gebze Organize Sanayi Bölgesi
fiahabettin Bilgisu Cad. 41480 Gebze-Kocaeli/TURKEY
Phone : (90)(262) 648 60 00 PBX
Telefax : (90)(262) 648 61 01
web
: www.alarko-carrier.com.tr
e-mail : info@alarko-carrier.com.tr
A.7.1.1i 140209 MiNERAL
SCP-Al 4/70
50°C
75°C
95°C
110°C
120°C
HCPC-Al 6/13
water
HCPC-Al 5/10
T
HCP-Al 6/90
Minimum required suction height
in 40°C ambient temperature at the
suction side of the pump to prevent
cavitation noise. (mWc)
HCP-Al 6/75
Pump Types
HCP-Al 4/90
Pump Data
When there is cavitation in a circulation pump, the following problems arise:
Low performance: Since the required flow conditions are not met, pump
cannot create the necessary flow rate and pressure. Upper floors cannot be
heated.
Vibration: Turbulent flow caused by air bubbles causes vibration.
Pump life is reduced: Air bubbles in the system or in the pump corrode the
pump material causes erosion.
Noise: Air bubbles, turbulence and striking of water on surfaces create noise.
HCP-Al 4/80
When the pressure at the suction end of
the circulation pump is not enough, water
changes phase to turn into gas. Gas
bubbles are carried to high pressure areas
by the flow. Vapour turns into water again
and gas bubbles causes turbulence in the
flow and water strikes the surfaces. This
process is called cavitation.
6
7
8
9
5
It is approved and certified by the Netherlands originating independent KEMA organization which test the electromagnetic
conformity of electrical devices and has the authority of approval, that our circulation pumps conform to EMC Directive
89/336/EEC.
Alarko Circulation Pumps are Produced in This Site
INSTALLATION POSITIONS
NOT PERMITTED
PERMITTED
Circulation
Pumps
Pump shaft must not be vertical position.
Pump shaft must be parallel position.
✓ Connect the pump to the installation as shown in the figure by making it parallel to the ground.
✓ Use isolating valves in the inlet and outlet in order to facilitate the removal of pump during repair or
maintenance.
✓ Use a thermic relay when connecting the pump to electric supply.
Alarko Circulation Pumps are developed for the heating and water circulation systems for houses, commercial and
industrial applications. These high technology products are born out of an industrial experience of half a century.
-Reliable and noiseless
-Easy to install
-Highly efficient
-Single-speed and three-speed models
-Wet rotor and glandless motors that do not need lubrication
-Long lasted
-Saving in energy
-Maintenance-free
For HCPC-AI types, additional
-Thermal protection
-Counter rotation warning and protection
-Remote control
-Operation signal LED
-Connection to an external operation LED
New design pump rod is milled and
when the impeller is installed on the
pump it is fixed with a segment. This
design makes it easy to separate the
impeller from the rod when needed.
CORRECT OPERATION
✓ Do not operate the pump without water.
✓ NEVER LUBRICATE THE PUMP
✓ Rods and bearings of ALARKO circulation pumps are water lubricated and they do not need
1
maintenance. New or idle pump rods may be throttled due to the pollutants and particles in
the water. In such cases, close the main electric switch. Remove the rotor end cap and rotate
the shaft a few rounds via screwdriver. Put the rotor end cap in place and operate the pump.
✓ Single speed pumps can be modified into three speed pumps by way of an adaptor. Notify this
in your orders.
2
3
4
ALARKO CARRIER GEBZE COMPLEX-ACGC
CAVITATION
ACGC is situated on an area of 60.500 square metres and
has a covered area of 36.800 sqare metres. The construction
of the complex started in July 1, 1999 and ended in November
1, 2000. ISO 9001 certified Main Production Centre of Alarko
Carrier has renewed its production technology and modernized
its organisation to produce Carrier air handling units, fan
coils, boilers, heating systems, burners, cooling groups,
cooling towers, unit heaters, submersible and circulation
pumps, and water boosters. Carrier produces panel radiators
at the Radiator Production Unit, which is situated on an area
of 18,000 square metres and has a covered area of 9.250
square metres at Dudullu Organized Industrial Area. Of the
total 996 employees, 650 people are employed in Alarko
Carrier production sites, 324 people in administrative, sales
and marketing departments, and 22 people in Research and
Development departments.
H
Low performance
due to cavitation
Q
NCP-Al 4/100
NCP-Al 5/125
NCP-Al 6/125
NCP-Al 8/125
NCP-Al 10/125
SRP-Al 6
SRP-Al 8
SRP-Al 10
2,1
6,9
9,9
16,2
22,2
1,9
6,8
9,8
16
22,1
2,9
7,8
10,7
17
22,3
3
7,9
10,9
17,1
23,2
2,3
7,1
10,2
16,4
22,4
3,2
8,1
11
17,3
23,4
2
6,9
9,9
16,1
22,2
1,5
6,3
9,3
15,6
22,5
1,6
8,5
9,4
15,7
21,8
1,8
6,7
9,6
15,9
21,9
1,9
6,9
9,8
16,1
22,1
2,3
7,1
10,1
16,4
22,4
1,6
6,4
9,3
15,6
21,6
1,6
6,5
9,4
15,7
21,7
2,2
7,1
10
16,3
22,3
Note: For NPVO-26-P, 53-25-P and 63-32-P, this value is to be taken as 1,5 mWc at 82°C and 3 mWc at 95°C.
MAIN PARTS (Standard Version)
NAME OF PART
MATERIAL
1. Stator Housing
GD-AlSi9Cu3
2. Pump Casing
Cast Iron GG 20
3. Rotor Can
Stainless Steel
4. Impeller
Noryl
5. Bearings
Radial-Carbon/Axial- Stainless Steel
6. O-Ring
CR
7. Shaft
Stainless Steel
8. Rotor End Cap
Brass
9. Stator Windings
Enamelled Copper Wire
The company reserves its right to alter its products due to technological developments.
ALARKO CARRIER
SANAY‹ VE T‹CARET A.fi.
GOSB-Gebze Organize Sanayi Bölgesi
fiahabettin Bilgisu Cad. 41480 Gebze-Kocaeli/TURKEY
Phone : (90)(262) 648 60 00 PBX
Telefax : (90)(262) 648 61 01
web
: www.alarko-carrier.com.tr
e-mail : info@alarko-carrier.com.tr
A.7.1.1i 280510 MiNERAL
SCP-Al 4/70
50°C
75°C
95°C
110°C
120°C
HCPC-Al 6/13
water
HCPC-Al 5/10
T
HCP-Al 6/90
Minimum required suction height
in 40°C ambient temperature at the
suction side of the pump to prevent
cavitation noise. (mWc)
HCP-Al 6/75
Pump Types
HCP-Al 4/90
Pump Data
When there is cavitation in a circulation pump, the following problems arise:
Low performance: Since the required flow conditions are not met, pump
cannot create the necessary flow rate and pressure. Upper floors cannot be
heated.
Vibration: Turbulent flow caused by air bubbles causes vibration.
Pump life is reduced: Air bubbles in the system or in the pump corrode the
pump material causes erosion.
Noise: Air bubbles, turbulence and striking of water on surfaces create noise.
HCP-Al 4/80
When the pressure at the suction end of
the circulation pump is not enough, water
changes phase to turn into gas. Gas
bubbles are carried to high pressure areas
by the flow. Vapour turns into water again
and gas bubbles causes turbulence in the
flow and water strikes the surfaces. This
process is called cavitation.
6
7
8
9
5
It is approved and certified by the Netherlands originating independent KEMA organization which test the electromagnetic
conformity of electrical devices and has the authority of approval, that our circulation pumps conform to EMC Directive
89/336/EEC.