TH ,Ltd.
Heat-Economy
NV
Heat technology
6-6/NV-1
Use
Feed water tanks of NV type are determined
as storage tanks for boiler water.
Alternative type of NV/OPL is used as feed
water tank with deaerator, and standard model
is supplied including fittings and accessories.
are during manufacturing tested with hydraulic
test by overpressure 0.2 MPa.
NV tank characteristics
Steel cylindrical tank with dished bottoms,
cleaning and discharge necks. The tank is
equipped with suspenders for transport and
handling and coated with a primer.
Saddles and sockets distance - on the Client’s
request.
The tank can be supplied including tube
sockets, fittings, accessories and insulation
covered with steel casing on request.
Basic accessories of NV/OPL tank
• Cover of cleaning hole;
• Safety valve (number of valves depends on
deaeratoír output);
• Level control;
• Closing valve for dosing of chemicals;
• Vacuum fuse;
• Level indicator (number depends on size of
the tank);
• Barbotage tube fittings (closing and check
valves);
• Closing valve at feed water outlet;
• Closing valve of tank discharge;
• Oveflow fittings (closing valve and steam
trap - number depends on deaerator
output);
• Thermometer;
• Pressure gauge.
NV/OPL tank characteristics
Steel cylindrical tank with tube sockets,
cleaning hole, socket for deaerator fixing if
degasifier is a part of tank supply, fittings,
complete accessories for level control and
water heating with steam (barbotage tube).
Operating gauge pressure and temperature
The tanks are designed for maximum
operating gauge pressure of 0.05 MPa and
temperature of 105 °C as maximum. The tanks
Basic accessories of NV tank
• Cover of cleaning hole, including gasket
and connecting materials.
No basic accessories
• insulation 100 mm covered with steel
casing.
Technical data
Dimensions specified in the table shall be applied on tanks of NV and NV/OPL type.
Weight specified in the table shall be applied only to NV type.
Tank
type
Capacity
m3
NV 1
NV 2
NV 3
NV 4
NV 5
NV 6
NV 8
NV 10
NV 12
NV 14
NV 17
NV 19
NV 24
NV 25
NV 29
NV 40
NV 50
1,0
2,0
3,0
4,0
5,0
6,0
8,0
10,0
11,5
14,0
16,5
19,0
23,5
25,0
29,0
40
50
Diameter
without
insulation
Length
without
insulation
Distance
between
saddles
Distance of
marginal
saddle
Axial
height
Tank
discharge
Number
of
saddles
D
mm
L
mm
A
mm
B
mm
C
mm
d
G’’
n
1
1
1
1
5/4
5/4
5/4
6/4
6/4
6/4
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
4
4
4
4
4
4
4
800
1000
1200
1400
1400
1600
1600
1800
1800
1800
1800
1800
2000
2200
2200
2600
3000
Right of changes reserved
2400
2480
2810
2910
3660
3260
4700
4280
4810
5810
6810
7810
7900
6990
7990
8000
8370
1460
1520
1820
1610
2210
1800
2775
2810
3310
4310
5310
6310
6340
5300
6300
6300
5940
470
480
495
650
725
730
730
750
750
750
750
750
780
840
840
834
1170
650
780
900
1000
1000
1150
1150
1250
1250
1250
1250
1250
1380
1500
1500
1700
2000
Tank weight
without insul.
and water
kg
460
570
790
1070
1250
1360
1620
1970
2160
2530
2890
4500
4990
5200
5560
11100
12877
NV
Tank NV
Tank NV/OPL
TH , Ltd.
Heat-Economy
Heat technology
6-6/NV-2