低温安全阀

低温安全阀主要用于低温介质管路的超压安全排放系统，广泛用于LO2、LN2、LNG及其他低温介质，具有开启灵敏、密封可靠和防静电的特点。 Stainless steel bellow sealed Safety Valves, angle type, type tested TUV……

低温安全阀主要用于低温介质管路的超压安全排放系统，广泛用于LO2、LN2、LNG及其他低温介质，具有开启灵敏、密封可靠和防静电的特点。

Stainless steel bellow sealed Safety Valves, angle type, type tested TUV-SV. 1105. D/G/F orifice do=12,5mm TUV-SV. 1105. D/G

Standard safety valve,

Metal to metal seated, closed bonnet “cleaned and degreased for oxygen service “

Applications:

Provided as safety device for protection against excessive pressure in stationary and moveable gas cylinders. Approved for non-inflammable and inflammable vapours, gases and fluids.

Temperature:-270℃/-454℉(3K)up to+225℃/+437℉(498K)

Maximum allowed back pressure: 15% of set pressure

Parts material

Materials		DIN EN	ASTM
1	Inlet body	1.4571	A276 Grade 316Ti
2	Outlet body	1.4308	A 351 CF8
3	Disc	1.4541	A 276 Grade 321
4	Bellow	1.4571	A276 Grade 316Ti
5	Bellow stem	1.4571	A276 Grade 316Ti
6	Stem	CW453K	B103 UNSC52100
7	Bonnet	1.4305	A314 Grade 303
8	Spring	1.4571	A276 Grade 316Ti
9	Cap	1.4301	A 276 Grade 304

Standard Technical data

Technical data (1-1/4 in preparation)
Nominal size	GW	1/2	3/4	1	1-1/4
Orifice	do	12.5	15	20	23
Set pressure range	bar	3.0-25.0	3.0-25.0	3.0-25.0	3.0-25.0
Outlet	GA	G1	G1	G 1-1/4	G 1-1/2
Height	H	186	190	205	255
Length	L1	44	44	51	56
Length	L2	52	54	63	65
Wrench size across flats	Si	36	36	41	50
Wrench size across flats	S2	41	41	50	55
Weight	ca. kg	1.03	1.05	1.70	2.45
Coeff. ofdisch. vapours, gases	aw	0.60	0.50	0.60	0.66
Coeff. ofdisch. fluids	aw	–	0.39	0.45	0.48

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