Advantages of our Rubber diaphragm valve:
1:large pressure;
2:high reliability;
3:good air tightness;
4:good bending performance;
5:long working life.

About Us

Founded in 1993, Hangzhou Biaozheng Rubber Plastic Fittings Factory is a professional enterprise engaged in the research, design and manufacture of rubber diaphragms.

Pneumatic Actuator Rubber Regulating Diaphragm Valve Manufacturers and Custom Rubber Diaphragm Suppliers in China

The company not only has a complete set of rubber molding products such as kneading machine, open mill, filter machine, flat vulcanizing machine, etc., but also set up a mold processing and production center, which can customize various rubbers for customers,diaphragm.



  • Quality

    Strictly selecting raw materials, focusing on process management, and strict quality management system to ensure controllable Pneumatic control valve diaphragm and other product quality.

  • Profession

    Thirty years of focus has given us very professional experience to deal with Rubber Valve diaphragm application problems in various working conditions (more than 400 media).

  • Customization

    We have a strong R&D team that can develop produce Pneumatic control valve diaphragm and other products according to the drawings or ideas provided by customers.

  • Service

    Honesty is the foundation, understanding customer needs attentively, meeting customer needs, and exceeding customer expectations.

Latest News

All kinds of Rubber diaphragm valves provided by our company are designed, manufactured, inspected and accepted according to domestic standards such as GB, JB, SH, HG, CJ and other foreign standards such as ANSI, JIS, BS, DIN.

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