SUCKER-ROD PUMP VALVE Russian patent published in 2025 - IPC F16K15/03 F16K17/02 F04B47/00 

FIELD: oil, gas and coke-chemical industry.

SUBSTANCE: invention relates to oil industry, specifically to devices for operation of oil wells, and is intended for oil production from wells. Proposed valve comprises body with seat, flap with hinge arranged to turn between open and closed positions in interaction with said seat, and pressure side for closing and non-pressure side for opening. Body seat has hexagonal groove and central torsion pin rigidly fitted therein. Said shutter is articulated with central torsion pin secured on sides of body seat groove. Gate is in closed position at delivery and spinning of the torsion pin, and open at suction of liquid and twisting of the torsion pin, due to which the central through hole is formed at movement of liquid. Said shutter can return to closed position by spinning torsion pin with its ends retained by ledges in the body seat interacting with shutter hinge and body seat. Said shutter is articulated with central torsion pin secured on sides of hexagonal groove in body seat.

EFFECT: creation of reliable, simple design, cost-effective valve.

2 cl, 3 dwg