V4120
Alwa-KFR
Shut-off-valve with backflow preventer
Product specification sheet
Application
CERT
Registration-No.
NW-6319CM0294
Alwa-K-KFR with
internal threads
Alwa-K-KFR with
external threads
The Alwa-KFR is used as shut-off valve with backflow preventer
in potable water installations. The downstream installation is
isolated by shutting off the valve with the handwheel. The integrated backflow preventer with an opening pressure of ≤ 10
mbar (to DN50) stops water from flowing back through the valve.
The valve insert with integrated backflow preventer is avail-able
as spare part and fits into all valve housings with dimensions
according to DVGW so that normal shutoff valves can be
upgraded to shutoff valves with backflow preventer.Alwa-KFR
valves are available with various pipe connections. Alwa-K-KFR
valves are equipped with larger external threads specially suitable
for connections of various plastic pipes.
Alwa-valves are low noise to DVGW and noise protection regulations.
Valves with draining facility allow draining of the system over the
valve.
Alwa-KFR are DVGW-certified under certification-no. NW6319CM0294.
Alwa-F-KFR
with flanges
Construction
The Alwa-KFR consists of:
•
EN0H-1806GE23 R0213 • Subject to change
•
•
•
•
Y-pattern valve housing with test cock. Available pipe
connections see Dimensions and Ordering Information
Valve insert with backflow preventer
Handwheel
Pipe connection (accessory)
Draining facility (optional)
Materials
•
•
•
•
•
•
•
•
Red bronze housing
Valve insert made of red bronze and brass
Cone made of red bronze and plastic
Closing spring made of stainless spring steel
Handwheel made of sheet steel, painted red
O-rings and soft seals made of EPDM
EPDM seat sealing
Optional draining facility made of red bronze, brass and
plastic (VA3401A).
Special Features
•
•
•
•
•
•
•
•
•
•
All parts with contact to the flow made of corrosion-resistant
red bronze
Opening pressure ≤ 10 mbar (up to DN 50)
Permanent easy operation due to isolated spindle
Maintenance-free spindle sealing with additional back sealing
Low installation height for sizes DN25 and larger with nonrising spindle
Cavity-free valve insert
EPDM seat sealing
Valve housing PN16 with test cock
Draining facility (accessoires)
Various pipe connections available
Technical Data
Medium
Water
Operating temperature max. 90 °C
Operating pressure
max. 16 bar
Opening pressure
≤ 10 mbar (up to DN 50)
kvs-value
DN15
DN20
DN25
DN32
DN40
DN50
DN65
DN80
DN100
≤ 150 mbar (DN 65 - DN 100)
Alwa-KFR
Alwa-F-KFR
5.1
5.1
10.6
10.6
17.1
17.1
29.0
29.0
35.1
35.1
64.5
64.5
88.5
132.0
129.0
193.0
251.0
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1
V4120 Alwa-KFR Shut-off-valve with backflow preventer
Dimensions
All dimensions in mm unless stated otherwise.
DN
15
20
25
32
40
50
kvs
D1
D2
H
L
SW
5.1
R 1/2"
50
90
65
27
50
95
75
32
10.6 R 3/4"
17.1
R 1"
80
125
90
41
1
130
110
50
29.0 R 1 /4" 80
140
120
55
35.1 R 1 1/2" 80
64.5
R 2"
80
160
150
70
Table 1 Alwa-KFR with internal threads
t
15.0
16.3
19.1
21.4
21.4
25.7
Fig. 1 Alwa-KFR with internal threads
DN
15
20
25
32
40
50
65
80
Fig. 2 Alwa-KFR mit with external threads
kvs
5.1
10.6
17.1
29.0
35.1
64.5
88.5
129
D1
G 3/4"
G 1"
G 1 1/4"
G 1 1/2"
G 1 3/4"
G 2 3/8"
G 3"
G 3 1/2"
D2
50
50
80
80
80
80
120
120
H
90
95
125
130
140
160
240
265
L
70
81
98
117
130
152
205
234
Table 2 Alwa-KFR with external threads
DN
15
20
25
32
40
50
kvs
D1
D2
D3
H
L
50
G 3/4"
90
71.5
5.1
R 1/2"
10.6 R 3/4"
50
G 1"
95
84.5
1
102
17.1
R 1"
80 G 1 /4" 125
122
29.0 R 1 1/4" 80 G 1 1/2" 130
35.1 R 1 1/2" 80 G 1 3/4" 145
134
160
64.5
R 2"
80 G 2 3/8" 160
Table 3 Alwa-KFR, internal thread on inlet,
external thread on outlet
SW
27
32
41
50
55
70
DN
15
20
25
32
40
50
65
80
100
kvs
5.1
10.6
17.1
29.0
35.1
64.5
132.0
193
251
D2
50
50
80
80
80
80
120
120
140
Fig. 4 Alwa-F-KFR with flanges
2
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L
t
A
A1
130
10
95
45
150
11
105
58
160
11
115
68
180
12
140
78
200
12
150
88
230
14
165
102
290
14
185
122
310
15
200
138
350
18
220
158
Table 4 Alwa-F-KFR with flanges
H
95
105
125
145
160
185
240
265
410
EN0H-1806GE23 R0213 • Subject to change
Fig. 3 Alwa-KFR, internal thread on inlet,
external thread on outlet
V4120 Alwa-KFR Shut-off-valve with backflow preventer
Order information
Ordering text
Table 5 Ordering information and Os.-No.
Inlet connec- Outlet connec- Os.- DN
15
20
25
tion type
tion type
No. mm 15
22
28
R
G
Internal thread Internal thread
External thread External thread
Internal thread External thread
V4120YY...
V4120XX...
V4120YX...
Flanges
Flanges
V4120FF...
Flanges
Flanges
V4120FF...
2"
3/
3/
4"
4"
1"
015
015
015
020
020
020
025
025
025
032
032
032
040
040
040
050
050
050
065
100
-4"
--
080
100
015
020
025
032
040
050
065
080
EN0H-1806GE23 R0213 • Subject to change
Alwa-KFR
- with blind plug
- with blind plug
- with blind plug
Alwa-F-KFR
- closed valve
body
- with blind plug
1/
32
40
50
65
80
35
42
54
--1"
11/4" 11/2"
2"
21/2"
3"
11/4" 11/2" 13/4" 23/8"
3"
31/2"
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3
V4120 Alwa-KFR Shut-off-valve with backflow preventer
Accessories
Connections for external threads
Union nut, sealing and red bronze soldering tailpiece
Union nut, sealing and internally threades red bronze tailpiece
DN 15, for 15 mm pipe-Ø
VA7400A015
DN 15, for 18 mm pipe-Ø
VA7400A016
DN 15
VA7405A015
DN 20, for 22 mm pipe-Ø
VA7400A020
DN 20
VA7405A020
DN 25, for 28 mm pipe-Ø
VA7400A025
DN 25
VA7405A055
DN 32, for 35 mm pipe-Ø
VA7400A032
DN 32
VA7405A032
DN 40, for 42 mm pipe-Ø
VA7400A040
DN 40
VA7405A040
VA7400A050
DN 50
VA7405A050
DN 50, for 54 mm pipe-Ø
Union nut, sealing and externally threaded red bronze tailpiece for external threads
DN 15
VA7401A015
DN 20
VA7401A020
DN 25
VA7401A025
DN 32
VA7401A032
DN 40
VA7401A040
DN 50
Draining valve
for DN15 to DN25
for DN32 to DN80
VA3401A008
VA3401A010
Blanking plugs (no Fig.)
for DN15 to DN80
VS3401A008
VA7401A050
for valves DN15
VA2510C015
DN 65
VA7401A065
for valves DN20
VA2510C020
DN 80
VA7401A080
for valves DN25
VA2510C025
for valves DN32
VA2510C032
for valves DN40
VA2510C040
for valves DN50
VA2510C050
Insulation shells
MAPRESS stainless steel compression set with sealing
DN 15, für 15 mm pipe-∅
VA7403A015
DN 15, für 18 mm pipe-∅
VA7403A018
DN 20, für 22 mm pipe-∅
VA7403A020
DN 25, für 28 mm pipe-∅
VA7403A025
DN 32, für 35 mm pipe-∅
VA7403A032
DN 40, für 42 mm pipe-∅
VA7403A040
DN 50, für 54 mm pipe-∅
VA7403A050
DN 65, für 64 mm pipe-∅
VA7403A065
For product information see product data sheet ‘VA2510C Insulation Shells’.
Alwa-Sampling valve
Sampling valve with connection V4250A008H
size G1/4 for building valves up
to DN 25
Sampling valve with connection V4250A010H
size G3/8 for building valves
from DN 32 to DN 80
Sanpress red bronze crimp fitting with sealing
DN15, for 15 mm pipe-Ø
VA7404A015
DN15, for 18 mm pipe-Ø
VA7404A018
DN20, for 22 mm pipe-Ø
VA7404A020
DN25, for 28 mm pipe-Ø
VA7404A025
DN32, for 35 mm pipe-Ø
VA7404A032
DN40, for 42 mm pipe-Ø
VA7404A040
DN50, for 54 mm pipe-Ø
VA7404A050
Automation and Control Solutions
Honeywell GmbH
Hardhofweg
74821 MOSBACH
GERMANY
Phone: (49) 6261 810
Fax: (49) 6261 81309
http://ecc.emea.honeywell.com
Spare parts
Handwheel, red
forDN 15 to DN 20
for DN 25 to DN 50
for DN 65 to DN 80
VS2400B050
VS2400B080
VS2400B120
Valve insert for all valve housing according to DVGW
ffor valve housings DN15
VS1401B015
for valve housings DN 20
VS1401B020
for valve housings DN 25
VS1401B025
for valve housings DN 32
VS1401B032
for valve housings DN 40
VS1401B040
for valve housings DN 50
VS1401B050
for valve housings DN 65
VS1401B065
for valve housings DN 80
VS1401B080
Manufactured for and on behalf of the
Environmental and Combustion Controls Division
of Honeywell Technologies Sàrl, Z.A. La Pièce 16,
1180 Rolle, Switzerland by its Authorised Representative Honeywell GmbH
EN0H-1806GE25 R0213
Subject to change without notice
© 2013 Honeywell GmbH