Check valves

KOSHZ Check valves

Intended for automatic overlap and pressurization of the drilling instrument tube channel in drilling oil and gas wells, and also in maintenance and emergency works.

KOSHT check valves

Intended for automatic overlap and pressurization of the drilling instrument tube channel in drilling oil and gas wells, and also in maintenance and emergency works.

Check valves KO-R1

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

POKZ Valve opening device

Intended for opening KOSHZ ball check valve in case of the need for depressurization of the drilling instrument tube channel in drilling oil and gas wells.

POKT Valve opening device

Intended for opening KOSHT ball check valve in case of the need for depressurization of the drilling instrument tube channel in drilling oil and gas wells.

KOSHZ Check valves

typical sizes

KOSHT check valves

typical sizes

Check valves KO-R1

typical sizes

POKZ Valve opening device

typical sizes

POKT Valve opening device

typical sizes