Note: Our Products Can Be Customized According To Customers' Needs. In Addition To National Standards,We Can Design And Manufacture According To American Standards, Japanese Standards, German Standards, Russian Standards, British Standards And So On.

H76 double flap check valve (H76 wafer butterfly check valve) is used for pure pipelines and industrial, environmental protection, water treatment, and high-rise building water supply and drainage pipelines to prevent the reverse flow of the medium. The check valve adopts a clamp type, the butterfly plate is two semicircles, and it adopts a spring for forced reset. The sealing surface can be built-up welding wear-resistant material or rubber lining, with a wide range of use and reliable sealing.

Main technical parameters of H76 double flap check valve, wafer butterfly check valve:

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Nominal diameter	DN(mm)	50mm~1200mm
Nominal pressure	PN(MPa)	1.0	1.6	2.5	4.0
Test pressure(MPa)	strength test	1.5	2.4	3.75	6.0
	Sealing test	1.1	1.76	2.75	4.4
Applicable media	Water, steam, oil products, sewage, acid and alkali
Applicable temperature	Rubber sealing surface（X）-20℃~120℃ Alloy steel sealing surface（H）Carbon steel-29℃~425℃ Stainless steel-29℃~200℃