Professional China Air Release Valve - Low Temperature Gate Valve Forged Steel – Convista

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Professional China Air Release Valve - Low Temperature Gate Valve Forged Steel – Convista Detail:

General

Model: DZ61, DZ11, DHZ61, DHZ11

Working pressure: 150LB-8000LB / 150LB-600LB

Connection type: 1-Female thread, 6-Socket welding

Size: 3/8”-2”

Design standard: ASME/ANSI B16.34, API602, GB/T12224, GB/T12228, GB/T12224, JB/T7749

Thread end dimension: ANSI B1.20.1(NPT), GB/T1751

Butt welding end size: ANSI B16.11, JB/T1751

Main body material: LF2, LF3, F304, F304L, F316, F316L

Inspection and test: API598 or JB/T7749

Standard: GB, JB, HG, JIS, JPI, API, ANSI, ASME

Main external dimensions

NPS	Reduced port	1/2″	3/4″	1″	1 1/4″	1 1/2″	2″	/
NPS	Full port	3/8	1/2	3/4	1	1 1/4	1 1/2	2
L		79	92	111	120	120	140	178
H(open)		330	333	360	407	475	475	551
W		100	100	125	160	160	180	200
Weight	Screw type	5.2	7.1	9.4	12.5	15.0	17.8	28.0
Weight	Welded type	4.8	6.4	8.7	12.2	13.4	15.2	26.0

Schedule of standard material

No.	Parts name	AS to ASTM		SS to ASTM
No.	Parts name	Type Lf2	Type Lf3	Type F304(L)	Type F316(L)
1	Body	A352 Lf2	A352 Lf2	A182 F304(L)	A182 F316(L)
2	Seat	A276 410+STL	A276 304+STL	A276 304(L)+STL	A276 316(L)+STL
3	Disc	A352 Lf2+STL	A352 Lf3+STL	A182 F304(L)+STL	A182 F316(L)+STL
4	Stem	A182 F6a	A182 F304	A182 F304(L)	A182 F316(L)
5	Gasket	SS + Flexible graphite
6	Bonnet	A352 Lf2	A182 LF2	A182 F304(L)	A182 F316(L)
7	Bonnet/bolt	A193 L7	A193 L7	A193 B8	A193 B8M
8	Cylindrical pin	A276 420		A276 304
9	Packing gland			A182 F304(L)	A182 F316(L)
10	Gland eyebolt	A193 L7	A193 L6	A193B8	A193B8M
11	Gland flange	WCB	A182 F11	A182 F304(L)	A182 F316(L)
12	Nut	A194 2H	A1944	A194 8	A194 8M
13	Stem nut	A276 420
14	H.W. lock nut	A194 2H	A1944	A194 8	A194 8M
15	Marking	SS
16	Handwheel	A197
17	Lubricating gasket	A473 431
18	Packing	Flexible graphite		PTFE
Applicable temperature		≥-40℃	≥-101℃	≥-196℃

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