Non slam Check Valves
About Non slam Check Valves
Non slam Check Valves
Non-slam check valve can be equipped with a counterweight and may have an optional hydraulic damper cylinder with an unidirectional oil flow metering valve.The closing time of the valve can be controlled, with limits, by metering the hydraulic flow in a damper unit.
The unidirectional oil flow control valve on the hydraulic / damper cylinder can be set from full open to full close by adjusting the external coupling. If required it is possible to furnish an auxiliary unidirectional oil flow metering valve which be used to adjust the opening time. The hydraulic cylinder is complete with a by-pass device and safety valve set to permit the free flow of the oil when the oil pressure is higher than 210 bar.
This abnormally high pressure can be reached only if the closing time is set too long or the hydraulic flow metering valve is not functioning. The high return flow in the butterfly valve caused by the valve closing too slowly can generate very high dynamic torque which could exceed allowable stressed if not protected by the relief valve.
::SPECIFICATION::
SIZE : Butterfly check valve : 80mm ~ 3,000mm
WORKING PRESSURE : Max. 16kgf/cm2
VALVE END : Flange (KS D3578, 4309) Other standards and available on request.
FLUID : Service Water, Sea Water etc. Rubber Lined type for sea water.
Applications: Oil & Gas, Pulp & Paper, Chemical, Petrochemical, Water treatment, Fume treatment, Mining, Shipbuilding, Power generation.
Our Export: Iran, Iraq, Italy, UAE, Bahrain, Indonesia, Australia, Kuwait, Saudi Arabia, South Africa, Germany, UK, Denmark, Canada, USA, Peru, Brazil, Nizeria, Mexico, Venezuela (Latin America), South America.
Contact For More Details: contact@oilandgasproducts.com
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