About Us

Tianjin Zhongfa Valve Co., Ltd.

Tianjin Zhongfa Valve Co., Ltd. Founded in 2006, a valve manufacturer in Tianjin, China. Mainly produce butterfly valve, gate valve, check valve, knife gate valve etc. We keep in high efficiency and strictly management of quality control, provide timely and effective pre-sale, sale and after-sales service in order to achieve effectiveness and customer satisfaction. We have gotten the ISO9001, CE Certification.


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  • Causes and solutions to water hammer

    1/Concept Water hammer is also called water hammer. During the transportation of water (or other liquids), due to sudden opening or closing of Api Butterfly Valve, gate valves, check vavles and ball valves. sudden stops of water pumps, sudden opening and closing of guide vanes, etc., the flow ra...

  • How to convert Valve Pressure PSI, BAR and MPA?

    PSI and MPA conversion, PSI is a pressure unit, defined as the British pound/square inch, 145PSI = 1MPa, and PSI English is called Pounds per square in. P is a Pound, S is a Square, and i is an Inch. You can calculate all units with public units: 1bar≈14.5PSI, 1PSI = 6.895kpa = 0.06895bar Europe ...

  • Flow characteristics of regulating valve

    The flow characteristics of the control valve mainly include four flow characteristics: straight line, equal percentage, quick opening and parabola. When installed in the actual control process, the differential pressure of the valve will change with the change of the flow rate. That is, when the...

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Our valves are compliance with valve international standard of ASTM, ANSI, ISO, BS, DIN, GOST, JIS, KS and so on.