Btionody of a RV ZJHN minitype pneumatic diaphragm double-seat contrl valve is equipped with two valve seats; Fluids flow out from the upper sealing surface and lower sealing surface of a valve plug; The RV ZJHN minitype pneumatic diaphragm double-seat control valve has a small unbalanced force, is a balancing structure, allows larger using pressure difference, is suitable for occasions with large pressure difference, big flow and not strict requirement on leakage volume, and can be broadly applies to the industrial sectors like oil, chemical industry, pharmacy, metallurgy, power sta, etc, to control, mediums like gas, liquid, steam, etc.
As one of the four subsidaries of Shanghai River-wave International Group Co., Ltd, Shanghai River-wave Fluid Machine Manufacturing Co., Ltd. Was accredited with Shanghai Hi-tech Enterprise in 2010. The application of the first-class fine machining center, CNC machine tools as well as control valve flow characteristics testing and monitoring center makes it highly effective for us to provide users with flow curves, flow characteristic curves of the control valve and other curves related to pressure, flow and temperature by means of microprocessor control.
Currently, Shanghai River-wave put its major focus on manufacturing control valves, regulating valves, PSA pneumatic sequencing valves, electric control valves, ball valves, butterfly valves, globe valves and products of other series. We have been proving valves for Germany BASF, Bayer, Shanghai Waigaoqiao Shipbuilding Co., Ltd, Yangzi Petrochemical Co., Ltd. Jiangnan Shipbuilding Works, etc...The company has been granted more than 30 patents. From 2007 to 2011, Shanghai River-wave has been assredited with Contract Honoring and Credit Keeping Enterprise for consecutively four years. Meanwhile, River-wave has obtained the TS National Manufacturing License for Special Equipment and CE Certificate, CCS Certificate for ships, etc.
Core Value of Shanghai River-wave: Satisfied customers, happy employees, assured Stockholder, stainable development.
