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Forged Steel Check Valve

Product Range

Size: 1/2"~3” (DN15~DN80)
Pressure Rating: CLASS150~2500LB (PN6~PN420)
Body Materials: A105N, LF2, F11, F22, F304, F316, F304L, F316L, F317, F321, F347, INCONEL, MONEL,
End connection: NPT, SW, RF, RJT, BW
Disc Structure: Lift or swing type disc

Technical Standard

• Design & Manufacturing Standard: API 602, ASME B16.34
  
• Structure Length Size: ASME B16.10, EN558
  
• Flange Connection Size: ASME B16.5, EN1092
  
• Welded Ends: ASME B16.25, ASME B16.11, ASME B1.20.1
  
• Check & Experiment: API 598, BS 6755, EN12266​
  

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Product Features

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☆ Body Structure: bolted bonnet (BB), welded bonnet (WB), pressure seal bonnet (PSB)
☆ Lift or swinig type disc
☆ Reduced or full port design
☆ Horizontal or vertical service

Part Materials List & Dimensions

Material Specification
NO.	Part Name	CS to ASTM	AS to ASTM	SS to ASTM
		Type A105	Type F22	Type F304(L)	Type F316(L)
1	Body	A105	A182 F22	A182 F304(L)	A182 F316(L)
2	Seat	A276 410	A276 304	A276 304(L)	A276 316(L)
3	Swing Disc	A276 420	A276 304	A276 304(L)	A276 316(L)
4	Nut	A194 2H	A194 4	A194 8	A194 8M
5	Hinge	A105	A182 F22	A182 F304L	A182 F316(L)
6	Gasket	Corrugated SS+Graphite		SS+PTFE
7	Bonnet	A105	A182 F22	A182 F304L	A182 F316(L)
8	Bolt	A193 B7	A193 B16	A193 B8M	A193 B8M
9	Pin	A276 420		A182 F304	A182 F316
Suitable Medium		W.O.G.etc	W.O.G.etc	HNO 3 ,CH 3 OOH etc
Suitable Temperature		-29℃～425℃	-29℃～550℃	-29℃～180℃

Main Dimensions
NPS		3/8"	1/2"	3/4"	1"	11/4"	1/2"	2"
L	800Lb	79	79	92	111	120	120	140
	900Lb～1500Lb	92	111	111	120	120	140	178
H	800Lb	61	61	78	84	101	120	133
	900Lb～1500Lb	79	79	79	97	105	120	140
Weight	800Lb	1.1	1	1.9	3.9	4.5	7.3	10
	900Lb～1500Lb	3.1	3	3.6	4.3	6.1	8.8	12.6

Inquiry

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