INDUSTRY
Type 50051.0004
Safety Valves, angle type, bronze
Lloyds Register Approval LR-TA 92/20011



Standard safety valve metal to metal seated, closed bonnet, with lifting device Inlet: male thread type G (BSPP) acc. to ISO 228/1 Outlet: female thread type G (BSPP) acc. to ISO 228/1


Part No. 50051.0004.0000




Applications:
Provided as safety device for protection against thermal expansion in electric or steam fired heat exchangers for vapours, gases and fluids, specific for heavy oil and lubricants (especially for ships). Approved for fluids, vapours and gases.
Working temperature: -10°C / +14°F (263K) up to +160°C / +320°F (403K)

 
Type 50051.0004
 

Materials

DIN EN

ASME/ASTM

1 Body CC491K B 62 UNS C83600
2 Inlet body 1.4301 A 276 Grade 304
3 Disc 1.4541 A 276 Grade 321
4 Stem CW614N B 249 UNS C38500
5 Spring 1.4571 A 313 Grade 316Ti
6 Bonnet CW614N B 249 UNS C38500
7 Spring clamp CW614N B 249 UNS C38500
8 Thread ring CW614N B 249 UNS C38500
9 Lifting cap CW614N B 249 UNS C38500
10 Lifting spring 1.4571 A 313 Grade 316Ti
11 Lifting stem CW614N B 249 UNS C38500
12 Lifting device CW614N B 249 UNS C38500
 
Type 50051.0004
 

Type 50051.0004Technical data
Nominal size GW 1/2
Orificed0 7
Set pressure rangebar6.0-15.0
OutletGA1/2
HeightH122
LengthL125
LengthL228
LengthA110
Wrench size across flatsS127
Weightca. kg0.38
Coefficient of discharge - gasαw0.68
Coefficient of discharge - fluidαw0.53
Dimensions in mm.



Discharge capacities
Calculation of flow rate acc. to AD2000-Merkblatt A2

Medium:
Air in m³/h at 0°C and 1013.25 mbar
Water in kg/h at 20°C

The capacity indicated below is for a fully opened valve.

d0 - orifice
A0 - flow area


Set
pressure
in bar (ü)
GW1/21/2
d0 (mm)7.07.0
A0 (mm²)38.4838.48
MediumAirWater
6.01363422
7.01553697
8.01763952
9.01954192
10.02164419
11.02354634
12.02554840
13.02755038
14.02955228
15.03155412
Produktdetails Produktanfrage


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