Hastelloy butterfly check valve is based on the midline butterfly check valve data provided by mark international control company. At present, this product is a new energy-saving product in China. It has good non-return, safety, reliability and small flow resistance. It is mainly applicable to chemical, food, medicine, light textile, papermaking and energy systems as a one-way valve. Hastelloy butterfly check valves produced by Shanghai efekai have good corrosion resistance in wet chlorine and aqueous solutions containing chlorine. Its outstanding feature is that it has excellent corrosion resistance in strong corrosive oxidizing and reducing mixed acid medium.

Hastelloy butterfly check valve features:

(1) Small size, light weight, compact structure and convenient maintenance.

(2) The valve plate adopts the design of adding two torsion springs to the dual plate, which can make the valve plate close quickly by itself.

(3) Due to the quick closing effect, it can prevent the backflow of medium and eliminate the strong effect of water hammer.

(4) The valve body has small length and size, good rigidity and convenient installation.

(5) Complete sealing is achieved, and the leakage of hydrostatic test is zero.

Specification parameters

Pressure rating: pn1.0-10.0mpa class150-600lb

Nominal diameter: dn20-dn500 1/2 "-20"

Corresponding models: h76w-10h.b, h76w-16h B、H76W- 25H.B、H46W-10H.B、H46W-16H.B、H46W-25H.B、H46W-150LB(H.B)、H76W-300LB(H.B)、 H76W-600LB(H.B)、H76W-10H.C、H76W-16H.C、H76W-25H.C、H46W-10H.C、H46W-16H. C、 H46W-25H.C、H46W-150LB(H.C)、H76W-300LB(H.C)、H76W-600LB(H.C)

Applicable medium: strong corrosive medium.

technical specifications

Design standard: jb/t8737, api594

Structure length: gb/t15188.2, ASME B16.10

Connecting flanges: Hg, GB, JB, API, ANSI, ISO, BS, DIN, NF, JIS

Test standard: jb/t9092, gb/t13927, API598

Main material

Hastelloy C276、Hastelloy G30、Hastelloy C4、Hastelloy C22、Hastelloy B、 CW-6M、CW-12M、N-12MV、CW-7N、N-7M、CX2MW、CW－2M