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Quoting Standards Bolted Cover Flanged or Butt-welding ends Manufacture in accordance with API 6D Face to Face/End to End Dimensions to ANSI B 16.10 Flange Dimensions to ANSI B 16.5 Butt-welding End Dimensions to ANSI B 16.25 Valve tested to API 6D Product Main Usage API Check Valve is suitable to Class150～600Lb and Working Temperature -29℃ to 550℃ in Oil, Chemical Industry, producing medicine, fertilizer and Electric Industry. Its suitable is water, oil, steam, acid medium etc. Product Construction 1. Design conforms to GB12236, reasonable construction, reasonable seal, and perfect performance. 2. Disc and seat sealing face are made of iron alloy or stellite, over-laid and hard faced wearable, high-temperature proof, rust-proof, scratch-proof, long time service. 3. Suitable for all kinds of flange and flange face, meet all kinds of requirement of project and client. 4. Large scale of body material for selection, gasket is adoptable according to actual situation or clients' requirement, applicable for all kinds of pressure rating, temperature and media. 5. Disc goes across the pin, minimum the impact of closure. 6. Connect of pin and disc is inside constructed, non-leakage, reliable application

Shell	ASTM A216 WCB	ASTM A351 CF8
Disc & Arm	WCB	CF8	CF 8M	Monel
Arm Pin	F 6a	F304	F316	Monel	F304
Disc facing	13Cr	13Cr	STL	304	STL	316	STL	Monel	304	304	STL
Seat facing	13Cr	STL	STL	304	STL	316	STL	Monel	304	304	STL
Shell	ASTM A351 CF3	ASTM A351 CF 8M	ASTM A351 CF 3M
Disc & Arm
Arm Pin	F 304L	F316	F 316L
Disc facing	304L	304L	STL	316	316	STL	316L	316L	STL
Seat facing	304L	STL	STL	316	STL	STL	316L	316L	STL