低温闸阀

低温闸阀适用于甲烷、液态天然气、二氧化碳、液氨、液氧、液氮、液氢等低温介质。通常工作温度低于-110℃，最高-196℃，广泛应用于液化天然气，液化石油气体和其它低温行业。

Cryogenic Gate Valves, PN50

Stainless steel body and topwork, one way tightening (in flow direction),

“live loaded” gland packing “cleaned and degreased for oxygen service “

Available options – on request only:

other connections are in preparation

Applications:

Approved for air gases, vapours and cryogenic liquefied gases incl. LNG. Workingtemperature:-196℃/-321℉(77K)up to+1200C/+2480F(393K)

Materials		DIN EN	ASTM
1	Body	1.4308	A 351 CF8
2	Valve seal	PTFE / Carbon filled (25%)
3	Disc	CW452K	B103 UNSC51900
4	Wedge	1.4308	A 351 CF8
5	Stem	1.4301	A 276 Grade 304
6	Bonnet gasket	PTFE
7	Headpiece	1.4308	A 351 CF8
8	Bolts	1.4301/A2	A194 B8
9	Elongation tube	1.4541	A213TP321
10	Gland packing	Graphite / PTFE
11	Gland nut	1.4305	A 276 Grade 303
12	Handwheel	Aluminium alloy
13	Bush	CW452K	B103 UNSC51900

Nominal size	DN	25	40	50	65	80	100
Face-to-face dimension	FF	133	133	110	110	110	130
Height	H	330	360	410	440	450	570
Outside pipe-0 EN ISO 1127	RA	33.7	48.3	60.3	76.1	88.9	114.3
Wall thickness pipe EN ISOH27	a	2.0	2.0	2.0	2.6	3.2	3.2
Outside pipe-0 ASTM A312	RA	33.40	48.26	60.33	73.03	88.90	114.3
Wall thickness pipe ASTM A312	a	S10	S10	S10	S10	S10	S10
Socket depth	b	8	13	16	16	16	20
Handwheel-0	B	125	125	150	150	150	200
Weight	ca.kg	3.3	4.8	7.5	8.6	11.4	21.8
Kvs – Value	m3/h	43	93	125	283	310	792
Cv – Value	gal /min	51	111	149	337	369	943