Type 06477

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Type 06477

Cryogenic Safety Valves, angle type, bronze, PN40, type tested TÜV-SV.836. S/G

Standard safety valve, metal to metal seated, closed bonnet, with lifting device Outlet: female thread G 1/2 acc. to ISO 228/1 "cleaned and degreased for oxygen service"

Part No. 06477.X.0000
Inlet: male thread type G (BSPP) acc. to ISO 228/1
Part No. 06477.X.5000
Inlet: male thread NPT acc. to ANSI B 1.20.1
Part No. 06477.0600.0000
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 06477
 

Materials

DIN EN

ASME/ASTM
1 Outlet body CC491K B 62 UNS C83600
2 Inlet body 1.4301 A 276 Grade 304
4 Disc 1.4541 A 276 Grade 321
5 Guide plate CW453K B 103 UNS C52100
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 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 06477
 

 

Type 06477 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 0.5-6.0 0.5-6.0 0.5-6.0 0.5-6.0
Height H 126 126 126 140
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 0.40 0.42 0.44 0.48
Coeff. of discharge from 3.0 bar αw 0.55 0.55 0.55 0.55
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
0.5   14 14 14 14
0.6   15 15 15 15
0.7   17 17 17 17
0.8   19 19 19 19
0.9   20 20 20 20
1.0   21 21 21 21
1.2   23 23 23 23
1.4   26 26 26 26
1.6   29 29 29 29
1.8   31 31 31 31
2.0   33 33 33 33
2.2   36 36 36 36
2.4   38 38 38 38
2.6   40 40 40 40
2.8   43 43 43 43
3.0   46 46 46 46
3.2   48 48 48 48
3.4   50 50 50 50
3.6   53 53 53 53
3.8   55 55 55 55
4.0   57 57 57 57
4.2   60 60 60 60
4.4   62 62 62 62
4.6   64 64 64 64
4.8   67 67 67 67
5.0   69 69 69 69
5.2   71 71 71 71
5.4   74 74 74 74
5.6   76 76 76 76
5.8   78 78 78 78
6.0   81 81 81 81

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