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Product Details

The check valve is designed and manufactured according well to API 6D and ANSI B 16.34.Itcan work in high temperature and pressure circumstance. It also has the features of goodappearance, nice function and superior. Widely used for petroleum,chemistry,water treatment industries.

Main part & material

Part name	Material
body	WCB,ZG1Cr18Ni9Ti,CF8,CF8M
Disc	1Cr18Ni9Ti 304,316
stem	1Cr18Ni9Ti 304,316
Seal ring	304,316(CF8,CF8M)
Packing	Polytetrafluoroethlene(PTFE)

Main outer size

DN	G	L	E	B	H
6	1/4"	65	10	24	65
10	3/8"	65	10	24	65
15	1/2"	65	12	26	65
20	3/4"	80	17	32	80
25	1"	91	20	14	90
32	1-1/4"	104	20	51	105
40	1-1/2"	120	20	58	120
50	2"	140	23	69	140

Specification

Nominal pressure(Mpa)	PN	2.5,4.0
Strength testing pressure(Mpa)	PT	3.8,6.0,9.6
Low pressure seal test(Mpa)		0.6
High pressure seal test(Mpa)		2.8,4.4,7.04
Applicable medium	water, oil, gas, nitric acid, acetic acid
Applicable temperature	-40~180 ^oC

Feature:
Resist friction
Valve disc is given enough intensity and rigidity. Disc sealing surface may be built-up weldedwith satellite alloy inlaid or other material responding to the users request.
Agility of switch
Solid ping is precisely installed and provided with high intensity to ensure operationalperformance and service life of valve.
Sealing credibility
The check valve adopt swing configuration. All the sealing part inside the valve, so all exteriorleak may except the middle flange, and also the middle flange gasket may be different according to pressure class.
Distortion compensating
The disc and the hinge are connected between slippery spherical surface, and this makes thedisc can circumgyrate in a little angle and regulates the sealing capability.