КО Check valves with flange connection

Check valve is designed for automatic overlap and pressurization of the high-pressure manifold tube channel in cementing, maintenance and operation of oil and gas wells.

The valve consists of a housing, a ball, a spring, a sleeve nut, a stop plug, a vessel and a ring.

The valve is mounted into the high-pressure manifold, connected to the flange connection with the octangular steel ring gaskets.

The valve opens under the fluid pressure impact in direct feed through the pipe string - ball moves down, in absence of circulation the valve closes under spring impact, the valve closes in case of reverse fluid feed, the stream is cut off.