800lb Forged Steel Piston Check Valve (GAH61/11H)

Standard specification.

Design and manufacture:API 602,BS 5352,ANSI B16.34.
Connection ends conform to:
   -Socket welded ends:ANSI B16.11.
   -(NPT threaded)Screw ends:ANSI B1.20.1.
   -Butt-welded ends:ANSI B 16.25.
   -Flanged ends:ANSI B 16.5.
Inspection & testing:API 598.
NACE MR 0175 on request
Tag: MSS SP 25.
Construction features.

Spring Loaded To Ensure That Even In The Low-Pressure Sealing Performance As Well.
Y pattern straight-through flow path,greatly reducing flow resistance.
Application.

For valves which size is smaller than 2"(DN50), forged steel valves are recommended. Compared with castings,forged valve offer the advantages of more uniform structure, greater density, higher strength integrity, enhanced dimensional characteristics and closer dimensional tolerances.Owing to so many advantageds,the forged valve can be widely used in the fields of petroleum,natural gas,chemical,power and other industries.    
Main Parts Material.
 

No	Part Name	Material
1	Body	A105	A182 F22	A182 F304(L)	A182 F316(L)
2	Disc	A276 420	A276 304	A276 304(L)	A276 316(L)
3	Gasket	316+graphite		316+PTFE
4	Bonnet	A105	A182 F22	A182 F304(L)	A182 F316(L)
5	Nameplate	SS
6	Bolt	A193 B7	A193 B16	A193 B8(M)	A193 B8(M)
7	Ball	A182 F304	A182 F304	A182 F304	A182 F304
Applicable medium		Water,steam,oil.,etc	Water,steam,oil.,etc	Acid.,etc
Applicable temp.		-29~425°C	-29~550°C	-29~200°C

Note:Other materials are available on request.

Dimensions(mm) and Weights(Kg)
 

NPS	RB	3/8	1/2	3/4	1	11/4	11/2	2	/
	FB	/	3/8	1/2	3/4	1	11/4	11/2	2
L		79,	79	92	111	120	152	172	200
W		61	61	65	79	95	103	118	132
Weight(kg)	BB	1.4	1.2	1.5	3.1	3.9	5.6	8.9	12.5
	WB	1.1	1.0	1.2	2.9	3.3	4.9	8.1	10.9

Product Range.

Port	Full Port(FP)/Reduced Port(RP)
Structure	BC(Bolted Cover),WC(Welded Cover),PSC(Pressure Self-sealing Cover)
Disc	Swing type,Piston type or Ball type
Rating	Class 150/ 300/ 600/ 800/ 900/ 1500/ 2500
Size Range	3/8" to 2"
End Options	FLG, SW(Socket Welded), Threaded(NPT/BSP), BW(Butt Welded)
Optional Materials	-Carbon Steel: A105, LF2 -Stainless Steel: F304, F304L, F316, F316L -Duplex: F51, F55 -Alloy: F1, F5, F5A, F9, F11, F22
Special Design	Y pattern forged check valve