Connection Form: Flange
Material: Carbon steel, SS, cast iron
Structure: Check valve / hydraulic check valve / non-return valve / Microresistance slow closing check valve; Wee-resistance buffer valve
Function: Industrial control
SLOW-CLOSING CHECK VALVE Structure and Purpose
Used on the pump outlet of a water supply system to prevent medium's back-flow, water hammer and water shock. It has three functions as an electric valve, check valve and water hammer remover. It is capable of improving the safety and reliability of the water supply system effectively through integrating the technical principle of slow-open, speed valve, slow-close, and removing water hammer and preventing of both pump-starting and pump-stopping water hammer. The gate can carry out open-close automatically upon the operation rules of the water pump just by operating the pump to open or close electrically. EN300X Slow-Closing Check Valves features by the big flow and small pressure loss, reliable sealing performance, easy installation, debugging and maintenance and long duration.
Provided with a non-return valve to control opening and closing speed. It can be adjusted to optimal opening and closing speed to cater for working conditions when pump starts or stops running.
Applicable for high-rises to reduce the production of water hammer and slamming, thus to effect quiet close.
Pressure Grade: PN10, PN16, PN25
Diaphram Type: DN50-DN350
Piston Type: DN400-DN800
|Suitable Medium||Water, Oil, Gas and etc.|
|Main material||CAST IRON,ASTM A216 WCB, WCC, WC6, SS304, SS316, CF8, ETC.|
|Flange Dimension||ASME B16.5, BS4504, ISO2531, ISO7005 and other standards conforming to the requirements|
|Face to Face Length||API594,BS5155, ISO5752, DIN3352 and other standards conforming to the requirements|