Cast Steel Swing Check Valve 1.DN:40-500MM 2.PN:1.0,1.6,2.0,4.0.6.4 3.Medium:gas,oil ,water. 5.Material:cast iron ,wcb.etc

Class 150-2500 Cast Steel Swing Check Valve

Class150-2500 cast steel swing check valve1. Design and manufacture of product according to American state standard ANSI B16.34, American petroleum institute standard API6D. 2. Small opening pressure, the disc can be opened fully with a very small pressure differential. 3. Rocker and hinge pin use inside-set design, reduces outer leakage point. 4. The body and bonnet of class 1500~Class 900 check valve is connected with stud. And the body and bonnet of class 1500~class 2500 check valve pressure seat structure to make product bulk small, weight light, seal credible. STD (Fire-proof,electricity Protect)

 

Type	Design And Manufacture	Face to face/End to end	Flange Dimension	Pressure and Temperature	lnspection and test
Swing check valve Lift check valve	APl6D BS1868	ASME B16.10	ASME B16.5	ASME B16.34	APl 598

 Pressure test

 

Nominal Pressrue	Shell Test		Water Seal Test		Air Seal Test
	MPa	Lbf/in2	MPa	Lbf/in2	MPa	Lbf/in2
150	3.1	450	2.2	315	0.5-0.7	60-100
300	7.8	1125	5.6	815
600	15.3	2225	11.2	1630
900	23.1	3350	16.8	2440
1500	38.4	5575	28.1	4080
2500	64.6	9367	47.4	6873

 Main part material

 

Body	ASTM A216 WCB				ASTM A351 CF8
Disc and Yoke	WCB	CF8	CF8M	Monel
Hinge pin	F6a	F304	F316	Monel	F304
Disc face	13Cr 13Cr STL	304 STL	316 STL	Monel	304 304 STL
seat ring face	13Cr STL STL	304 STL	316 STL	Monel	304 304 STL
Body	ASTM A351 CF3 ASTM A351 CF8M ASTM A351 CF3M
Disc and Yode
Hinge pin	F304L F316L F316L
Disc face	304L 304L STL		316 316 STL		316L 316L STL
seat ring face	304L STL STL		316 STL STL		316L STL STL

Class 150-2500 Cast Steel Swing Check Valve