CRYOGENIC
Type 06478
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, with lifting device Outlet: female thread G 1/2 acc. to ISO 228/1 "cleaned and degreased for oxygen service"

Part No. 06478.X.0000
Part No. 06478.0600.9000
Inlet: male thread type G (BSPP) acc. to ISO 228/1
Part No. 06478.X.5000
Inlet: male thread NPT acc. to ANSI B 1.20.1
Part No. 06478.0600.0000
Inlet: union type weld/braze fitting for pipe outside diameter 12mm

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 06478
 

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 Lifting cap CW614N B 283 UNS C38500
12 Lifting spring 1.4571 A 276 Grade 316Ti
13 Lifting stem CW614N B 283 UNS C38500
14 Lifting device CW614N B 283 UNS C38500
15 Weld/Braze fitting 1.4301 A 276 Grade 304
16 Union nut CW614N B 283 UNS C38500

 
Type 06478
 

Type 06478 Technical data
Nominal size GW1/43/81/2 3/4
Orificed0 6.06.06.06.0
Dimension code.X.0200030004000600
Set pressure rangebar0.4-55.00.4-55.00.4-55.00.4-55.0
HeightH126126126140
LengthL112131415.5
LengthL226262640
Socket depthb---10
Wrench size across flatsS127272727
Wrench size across flatsS2 ---32
Weightca. kg0.400.420.440.47
Coefficient of dischargeαw 0.660.660.660.66
Dimensions in mm.



Discharge capacities
Calculation of flow rate 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)		GW1/4, 3/8, 1/2 & 3/4
d0 (mm)6.0
A0 (mm²)28.3
MediumAir
0.414.7
0.516.5
0.618.1
0.719.6
0.821
0.922.3
1.023.6
1.531.3
2.039
2.547.1
3.054.9
4.069
5.083.1
6.097.2
7.0111
8.0126
9.0140
10.0154
12.0182
14.0211
16.0239
18.0267
20.0298
22.0327
24.0355
26.0384
28.0412
30.0445
32.0474
34.0502
36.0531
38.0560
40.0594
42.0623
44.0652
46.0681
48.0710
50.0745
55.0818
Produktdetails Produktanfrage


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