Type 06389

CRYOGENIC

Type 06389

Cryogenic Safety Valve, angle type, bronze, PN40, type tested TÜV-SV.780. S/G

Standard safety valve with carbon filled PTFE valve seal, orifice d₀=10mm with PTFE seal, closed bonnet "cleaned and degreased for oxygen service"

Part No. 06389.X.0000
Inlet: male thread type G (BSPP) acc. to ISO 228/1, Outlet: male thread type G (BSPP) acc. to ISO 228/1
Part No. 06389.X.2000
Inlet: male thread type R (BSPT) acc. to ISO 7/1, Outlet: male thread type G (BSPP) acc. to ISO 228/1
Part No. 06389.X.5000
Inlet: male thread NPT acc. to ANSI B 1.20.1, Outlet: male thread type G (BSPP) acc. to ISO 228/1

Available options - on request only:

- external parts nickel plated

Connection size	D₀	Setting range	Seal	Alpha value
1/2"-3/4"	7	20.00 - 25.00 bar	PTFE - Carbon	0.64
1/2"-3/4"	10.5	1.80 - 5.99 bar	Sintimid	0.64
1/2"-3/4"	10.5	6.00 - 40.00 bar	PTFE - Carbon	0.54

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	CW614N	B 455 UNS C38500
3	Valve seal	PTFE / Carbon filled (25%)
4a	Disc set pressure range 1.8-5.99 bar	Tecasint 1021
4b	Disc set pressure range 6.0-40.0 bar	CC493K	B 505 UNS C93200
5	Guide plate	CW453K	B 103 UNS C52100
6	Stem	CW453K	B 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

Type 06389	Technical data
Nominal size	GW	1/2	3/4	1/2	3/4
Orifice	d₀	7.0	7.0	10.5	10.5
Dimension code	.X.	0704	0706	1004	1006
Set pressure range	bar	1.8-40.0	1.8-40.0	1.8-40.0	1.8-40.0
Outlet	GA	1	1	1	1
Height	H	158	158	158	158
Length	L₁	14	16	14	16
Length	L₂	54	54	54	54
Wrench size across flats	S₁	32	32	32	32
Wrench size across flats	S₂	41	41	41	41
Weight	ca. kg	1.00	1.00	1.00	1.00
Coefficient of discharge	α_w	0.64	0.64	0.54	0.54
Coefficient of discharge	rated slope	0.862	0.862	1.517	1.517

Dimensions in mm.

Discharge capacities

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	1/2 & 3/4	1/2 & 3/4
	d₀ (mm)	7.0	10.5
	A₀ (mm²)	38.48	86.59
	Medium	Air in m³/h
2.0		-	-
2.9		-	139
3.0		-	143
3.3		96	154
4.0		112	179
5.0		135	215
6.0		158	251
7.0		181	287
8.0		204	324
9.0		227	361
10.0		250	398
12.0		295	470
14.0		341	543
16.0		387	615
18.0		432	688
20.0		482	767
22.0		528	841
24.0		574	914
26.0		620	987
28.0		666	1060
30.0		719	1144
32.0		765	1218
34.0		812	1292
36.0		858	1366
38.0		905	1440
40.0		959	1527

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