GATE VALVE

摘要

FIELD: shutting-off oil gas supply pipes lines at different pressures. SUBSTANCE: gate valve has body with through hole. Arranged inside body are gate, movable seats with sealing members and independent bearing bushes. Each bush forms circular clearance with respective movable seat. Sealing member of movable seat is made by radius on side directed to gate. EFFECT: enhanced operational reliability; durability of sealing unit; simplified construction. 3 dwg