VALVE OF WIDE-PASSAGE DOWNHOLE PLUNGER PUMP Russian patent published in 2016 - IPC F16K15/02 

FIELD: oil industry.

SUBSTANCE: invention relates to oil producing industry, in particular, to well bottom plunger pumps, used for oil production. Valve body is made integral with seat and support. In lower valve body has an opening for suction of liquid, in upper part - a thread for connecting a pump. Valve is sealed by high-strength thread-reinforced rubber monolithic seal. Smaller diameter of said seal is 1 mm less than lower diameter of seat. Attachment of valve seal is carried out with a threaded connection of a clamp and valve. To limit height of lifting and provide initial pressing pressure of valve, housing in lower part has a support, valve has a nut. Valve rotation when sitting is provided by blades mounted inclined on clamp.

EFFECT: larger valve flow channel and suction pump line and overall increase of pump output.

1 cl, 2 dwg