公开(公告)号：US20230141878A1

公开(公告)日：2023-05-11

申请号：US17995187

申请日：2021-04-14

Applicant: S.P.M. FLOW CONTROL, INC.

Inventor： Justin Lane POEHLS ,  Connor Robert LANDRUM ,  David Theodore FIGGS

IPC: F04B53/22 ,  F04B19/00

CPC classification number: F04B53/22 ,  F04B19/00

Abstract: A positive displacement pump includes a suction cover disposed in a suction access bore defined in the fluid end and housing, where the suction cover is configured to cover the suction access bore. A retainer nut is configured for abutting against the suction cover and retaining the suction cover within the suction access bore. A suction gland has an inner circumferential threaded interface configured to engage an external circumferential threaded interface defined on the retainer nut, and the suction gland has a plurality of threaded openings configured to receive a plurality of threaded fasteners that can be used for securely fastening the suction gland to the fluid end housing.