Delivery Time:1usually within 35 days after received your payment
Certification:ISO 9001/ API 6D

Double Disk Swing Check Valve ,  SS Spring Loaded , Wafer PN16 With CE &  ISO

Standards

Design and manufacture as BS1868, ANSI B16.34
Face to face dimensions as ANSI B16.10
End flange dimension as ANSI B16.5
Pressure-temperature ratings as ANSI B16.34
Pressure test as API 598
Applicable Medium: water ,gas,oil,and other causticity medium.

Application:

Valve is used for preventing the back-going of medium in pipelines and equipments, and the pressure of medium will bring the result of opening and closing automatically.

When the medium is back-going, valve disc will automaticaly closed to avoid accidents.

Specification
1	Face to face according to DIN3202-K3.
2	Flange drilling according to ANSI125/150;DIN2501PN10/PN16;AS2129 Table E;JIS10K ect.
3	Working Pressure: PN10;PN16

Main Parts and Materials
Number	Part Name	Material
1	Body	GGG50
2	Disc	SS304
3	Stem	SS304
4	Spring	SS304
5	Washer	PTFE
6	Washer	PTFE
7	Gasket	NBR
8	Hex nut	A193A

Main Dimensions
DN	D	D1	D2	L	R	t
50	107	65	40	43	27	18.4
65	127	80	60	46	35	19.8
80	142	94	70	64	42	27.7
100	162	117	88	64	50	27.7
150	218	171	134	76	77	31.6
200	273	224	182	89	102.5	32.9
300	378	310	260	114	146	43.3
350	446	360	298	127	170	45.3
400	488	410	350	140	195	52.3
450	546	450	385	152	215	58.2
500	594	505	438	152	238	58.3
600	700	624.5	538	178	292	74.6
700	820	720	662	229	345	96
800	930	825	762	241	394	99

Test Pressure

Test Item	Shell Test	Seal Test	Back Seal Test	Air Seal Test
Medium	Water	Air
Unit	MPa	lbf/in2	MPa	lbf/in2	MPa	lbf/in2	MPa	lbf/in2
Pressure (Class)	150	3.1	450	2.2	315	2.2	315	0.5-0.7