Tool and method for taking out plunger pump fluid end valve seat

• Main Authors: CHENG GUANGZHONG, YU TIANYUAN, LIU LIQING, HE DONG, MA ZHIQUAN, MENG LINGCHAO, ZHOU MING, LIU DACHUAN
• Format: Patent
• Language: Chinese; English
• Published: 03.03.2023
• Subjects: HAND TOOLS; MANIPULATORS; PERFORMING OPERATIONS; PORTABLE POWER-DRIVEN TOOLS; TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING; TRANSPORTING

The invention discloses a tool and a method for taking out a fluid end valve seat of a plunger pump, relates to the technical field of maintenance of plunger pump equipment, and solves the problem that the fluid end valve seat is difficult to disassemble in the maintenance process of the plunger pump. The tool comprises a pull rod, a clamping jaw, a hollow jack and a nut, the pull rod comprises a circular truncated cone section, a straight rod and a threaded section, the clamping jaw comprises an elastic clamping ring and at least three clamping petals sequentially arranged in the annular direction, the pull rod penetrates through a vertical channel of a piston of the hollow jack, and the nut is installed on the threaded section. Under the condition that the circular truncated cone section and the clamping jaw extend into a center hole of a plunger pump fluid end valve seat, the circular truncated cone section opens the at least three clamping petals, the hollow jack is placed on the upper plane of a plunger