PARALLEL-SEAT GATE VALVE Russian patent published in 1995 - IPC

FIELD: devices used for conveying aqueous suspensions of abrasive materials in the form of pulp. SUBSTANCE: seat is secured in the body passageway, and gate valve with sealing surface and bevels is positioned there. Eccentric bushings are located in the body side hollows, each bushing accommodates a stud; made on the generating surface of each hollow are diametrically arranged grooves, which receive the retainer. Each stud has a circular tongue. The retainer is made in the form of pins diametrically arranged on the tongue for movement grooves, the pin axes are parallel to the stud axis. On the side facing the bottom, the body hollow grooves are chamfered. EFFECT: improved design. 2 cl, 5 dwg