Herose 06388

Cryogenic Safety Valve, angle type, bronze, PN50, type tested TÜV-SV.780. S/G

Full lift safety valve, orifice d0=23mm standard safety valve, with carbon filled PTFE valve seal, closed bonnet "cleaned and degreased for oxygen service"

Part No. 06388.X.0000
Inlet: male thread type G (BSPP) acc. to ISO 228/1, Outlet: female thread type G (BSPP) acc. to ISO 228/1
Part No. 06388.X.2000
Inlet: male thread type R (BSPT) acc. to ISO 7/1, Outlet: female thread type G (BSPP) acc. to ISO 228/1
Part No. 06388.X.5000
Inlet: male thread NPT acc. to ANSI B 1.20.3, Outlet: female thread type G (BSPP) acc. to ISO 228/1
Part No. 06388.X.6000
Inlet: male thread NPT acc. to ANSI B 1.20.3, Outlet: female thread NPT acc. to ANSI B 1.20.3

Available options - on request only:


- external parts nickel plated
- with installed elbow at the outlet
- with additional drain hole at the outlet (1)


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 +185°C / +365°F (458K), suitable for horizontal installation

 

Materials

DIN EN

ASME/ASTM

1 Outlet body CC491K B 62 UNS C83600
2 Inlet body 1.4301 SA 479 Grade 304
3 Valve seal PTFE / Carbon filled (25%)
4 Disc CC493K SB 505 UNS C93200
5 Guide plate CC493K SB 505 UNS C93200
5a Guide plate from GW 1 CC453K SB 103 UNS C52100
6 Stem CW453K SB 103 UNS C52100
7 Spring 1.4571 A 313 Grade 316Ti
8 Bonnet 1.4308 A 351 CF 8
9 Spring clamp CW614N B 455 UNS C38500
10 Thread ring CW614N B 455 UNS C38500
11 Cap CW614N B 455 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 2014/68/EU (PED) and ASME Code
Section VIII.



Type 06388 Technical data
Nominal size GW 1/2 3/4 1/2 3/4 1 1-1/4 1-1/2 2
Orifice d0 7.0 7.0 10.5 10.5 15.0 23.0 23.0 23.0
Dimension code .X. 0704 0706 1004 1006 1510 2312 2314 2320
Set pressure range bar 3.3-50.0 3.3-50.0 2.9-50.0 2.9-50.0 2.9-50.0 2.0-50.0 2.0-50.0 2.0-50.0
Outlet GA 1 1 1 1 1-1/4 2 2 2
Height H 140 140 140 140 157 218 218 216
Length L1 14 16 14 16 18 20 20 25
Length L2 36 36 36 36 42 56 56 54
Wrench size across flats S1 30 30 30 30 41 55 55 65
Wrench size across flats S2 41 41 41 41 50 70 70 70
Weight ca. kg 0.78 0.80 0.76 0.79 1.27 3.05 3.10 3.30
Coefficient of discharge αw 0.82 0.82 0.58 0.58 0.5 0.62 0.62 0.62
Coefficient of discharge rated slope 0.862 0.862 1.517 1.517 2.769 7.55 7.55 7.55
Dimensions in mm.

 

Discharge capacities

Medium:
Air in m³/h at 0°C and 1013.25 mbar
Air in SCFM at 60°F (15.6°C) and 14.7 psia (1013.25 mbar)

The capacity indicated below is for a fully opened valve.

d0 - orifice
A0 - flow area

Calculation of discharge capacity acc. to AD2000-Merkblatt A2 / DIN EN ISO 4126-1 resp. ASME Code Sec. VIII. The safety valve is marked with the lower capacity of both calculations.

 

Set
pressure
in bar (ü)
GW 1/2 & 3/4 1/2 & 3/4 1 1-1/4, 1-1/2 & 2
d0 (mm) 7.0 10.5 15.0 23.0
A0 (mm²) 38.48 86.6 176.63 415.27
Medium Air in m³/h
2.0   - - - 563
2.9   - 143 252 737
3.0   - 147 259 756
3.3   93 158 279 814
4.0   108 185 325 949
5.0   130 222 391 1142
6.0   153 260 458 1335
7.0   174 298 524 1528
8.0   196 335 590 1721
9.0   219 373 656 1914
10.0   241 410 722 2107
12.0   285 486 855 2493
14.0   330 561 987 2879
16.0   373 636 1119 3265
18.0   418 711 1252 3651
20.0   461 787 1384 4037
22.0   507 862 1517 4422
24.0   550 937 1649 4808
26.0   595 1012 1781 5194
28.0   638 1088 1914 5580
30.0   683 1163 2046 5966
32.0   727 1238 2178 6352
34.0   772 1313 2311 6738
36.0   815 1389 2443 7124
38.0   860 1464 2576 7510
40.0   904 1539 2708 7896
42.0   949 1614 2840 8282
44.0   992 1690 2973 8668
46.0   1037 1765 3105 9054
48.0   1081 1840 3238 9440
50.0   1126 1915 3370 9825

 

Set
pressure
in psig
GW 1/2 & 3/4 1/2 & 3/4 1 1-1/4, 1-1/2 & 2
d0 (inch) 0.276 0.414 0.591 0.907
A0 (in²) 0.060 0.134 0.274 0.644
Medium Air in SCFM
50   60 102 180 524
60   70 118 208 607
70   79 134 236 690
80   89 150 265 772
90   98 167 294 855
100   107 183 322 938
110   117 199 350 1021
120   126 215 379 1103
130   136 231 407 1186
140   145 248 435 1269
150   155 264 464 1352
175   179 304 535 1558
200   202 344 606 1766
225   226 384 677 1972
250   250 425 748 2179
275   273 465 818 2386
300   297 506 889 2593
325   321 546 960 2800
350   345 586 1031 3007
375   368 626 1102 3213
400   392 667 1173 3420
425   416 707 1244 3627
450   439 748 1315 3834
475   463 788 1386 4041
500   487 828 1457 4248
525   510 869 1528 4455
550   534 909 1599 4662
575   558 949 1670 4868
625   605 1030 1812 5282
675   653 1111 1954 5696
725   700 1191 2096 6109

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