
Downhole drilling motors
Downhole drilling motors are used for drilling of directional, deep, horizontal, vertical and other wells.
Circulating valve

Jars
Jar is a device used downhole to deliver an impact load to another downhole component, especially when this component is stuck.
Packer hydromechanical PD-HM 195

Check valves
Check valves is used to avoid Downhole drilling motor's sludgig and showing of oil-gas and water during drilling process.

Overflow valve
Overflow valve is used to fill and dump the drill string during drilling tol round-trips.