Type 06474

Type 06474

Cryogenic Safety Valves, angle type, bronze, PN63, type tested TÜV-SV.836. S/G

Standard safety valve, with carbon filled PTFE valve seal, closed bonnet Outlet: female thread G 1/2 acc. to ISO 228/1 "cleaned and degreased for oxygen service"

Part No. 06474.X.0000

Inlet: male thread type G (BSPP) acc. to ISO 228/1
Part No. 06474.X.5000
Inlet: male thread NPT acc. to ANSI B 1.20.1
Part No. 06474.0600.0000
Inlet: union type braze fitting for pipe outside diameter 12 mm

Available options - on request only:

- external parts nickel plated
- with installed elbow at the outlet


Applications:
Provided as safety device for protection against excessive pressure in stationary and moveable gas cylinders and pressure vessels. Approved for air gases, vapours and cryogenic liquefied gases incl. LNG.
Working temperature: -196°C / -321°F (77K) up to +150°C / +302°F (423K), suitable for horizontal installation
 
 
Type 06474
 

Materials

DIN EN

ASME/ASTM

1 Outlet body CC491K B 62 UNS C83600
2 Inlet body 1.4301 A 276 Grade 304
3 Valve seal PTFE / Carbon filled (25%)
4 Disc CW452K B 159 UNS C51900
5 Guide plate CC493K B 505 UNS C93200
6 Stem CW614N B 283 UNS C38500
7 Spring 1.4571 A 313 Grade 316Ti
8 Bonnet 1.4301 A 276 Grade 304
9 Spring clamp CW614N B 283 UNS C38500
10 Thread ring CW614N B 283 UNS C38500
11 Cap CW614N B 283 UNS C38500
15 Braze fitting 1.4301 A 276 Grade 304
16 Union nut CW614N B 283 UNS C38500
Essential: Valves are delivered at a set pressure,
therefore when ordering please confirm set
pressure, medium and temperature.
Standard marking acc. to Pressure Equipment
Directive 97/23/EG (PED).
 
Type 06474
 

 

Type 06474 Technical data
Nominal size GW 1/4 3/8 1/2 3/4
Orifice d0 6.0 6.0 6.0 6.0
Dimension code .X. 0200 0300 0400 0600
Set pressure range bar 4.5-45.0 4.5-45.0 4.5-45.0 4.5-45.0
Height H 100 100 100 114
Length L1 12 13 14 15.5
Length L2 26 26 26 40
Socket depth b - - - 10
Wrench size across flats S1 27 27 27 27
Wrench size across flats S2 - - - 32
Weight ca. kg 0.34 0.36 0.38 0.48
Coefficient of discharge αw 0.66 0.66 0.66 0.66
Dimensions in mm.



 

Discharge capacities
Calculation of mass flow acc. to AD2000-Merkblatt A2 / DIN EN ISO 4126-1

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

The capacity indicated below is for a fully opened valve.

d0 - orifice
A0 - flow area
 

 

Set
pressure
in bar (ü)
GW 1/4 3/8 1/2 3/4
d0 (mm) 6.0 6.0 6.0 6.0
A0 (mm²) 28.3 28.3 28.3 28.3
Medium Air
4.5   75 75 75 75
5.0   83 83 83 83
6.0   97 97 97 97
7.0   111 111 111 111
8.0   125 125 125 125
9.0   139 139 139 139
10.0   154 154 154 154
12.0   182 182 182 182
14.0   210 210 210 210
16.0   238 238 238 238
18.0   267 267 267 267
20.0   298 298 298 298
22.0   326 326 326 326
24.0   355 355 355 355
26.0   383 383 383 383
28.0   412 412 412 412
30.0   444 444 444 444
32.0   473 473 473 473
34.0   502 502 502 502
36.0   531 531 531 531
38.0   559 559 559 559
40.0   593 593 593 593
42.0   622 622 622 622
44.0   651 651 651 651
45.0   666 666 666 666

For more information about other products please contact the engineering department.

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