Zhejiang Shangju Valve Technology Co., Ltd. primarily manufactures (H77X Wafer-type Dual Disc Check Valves) and is also one of the domestic (Check Valve) producers. The company's business scope includes: production, processing, and sales of valves, pipe fittings, and fluid equipment; sales of pipeline accessories, building materials, hardware and electrical products, and automatic control equipment; and engagement in import and export business of goods and technology! New and existing customers are welcome to contact us by phone or mail. We are committed to providing you with satisfactory service!

H77XWafer-type Dual Disc Check ValveStructure Diagram:

Butterfly check valves are used in pure pipelines and industrial, environmental protection, water treatment, and high-rise building water supply and drainage pipelines to prevent reverse flow of media.
Product features: Check valves are installed in pipeline systems, primarily to prevent backflow of media. They are automatic valves that rely on media pressure to open and close. In the past, the commonly used types in China were the H44 flanged connection swing check valve and the H41 flanged connection lift check valve. These traditional check valves are bulky, have high fluid resistance, generate high water hammer pressure when closing, are difficult to install and maintain, and have a short service life.

Detailed information on the Wafer-type Dual Disc Check Valve: