Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.

Anpeng Ge

Jixin Wang

Xiaobin Li

Chen Jiang

Shulin Zhang

Haiping Cui

Wenping Cui

Baojie Wang

Peng Li

Baoguo Jian

Weichen Liu

Xiaosong Wei

Wenjie Deng

Hailong Li

Jinling Huang

Changxiao Zuo

Yilong Zhu

A valve seat, a plug valve, and a fracturing manifold are provided. The valve seat includes a sealing valve seat in an annular shape and a mounting valve seat in an annular shape. The sealing valve seat includes a sealing valve seat inner hole, and the mounting valve seat includes a mounting valve seat inner hole. The sealing valve seat is nested inside the mounting valve seat, and the sealing valve seat inner hole communicates with the mounting valve seat inner hole. In axial and radial directions of the sealing valve seat inner hole, or axial and radial directions of the mounting valve seat inner hole, an outer surface of the sealing valve seat abuts against an inner surface of the mounting valve seat.

Valve seat, plug valve, and fracturing manifold

A valve spring fixing device and a plunger pump are disclosed. The valve spring fixing device includes a spring fixing piece, which includes a first supporting surface and a second supporting surface located at two ends of the spring fixing piece, and an intermediate portion located between the first supporting surface and the second supporting surface; and a spring mounting portion connected with the intermediate portion and configured to mount a valve spring, the first supporting surface and the second supporting surface are configured to contact with a valve box to fix the valve spring fixing device.

Valve spring fixing device and plunger pump

A cover, a fluid end and a plunger pump are provided. The cover includes: a body, the body being cylindrical, and the body including a first end, a second end, and a side surface connecting the first end and the second end; a main flow channel extending along an axis of the body; a plurality of subsidiary flow channels, each of the plurality of subsidiary flow channels being communicated with the main flow channel; a first opening, located at the first end and communicated with the main flow channel; and a plurality of second openings, located at the side surface of the body; each of the plurality of subsidiary flow channels being communicated with at least one of the plurality of second openings.

Cover, fluid end and plunger pump

A plunger, a hydraulic end and a plunger pump are disclosed. The plunger includes a plunger body, the plunger body includes a flow channel; a first liquid inlet hole is located in the plunger body and passes through the sidewall of the plunger body; the plunger body includes a first end portion and a second end portion, a flow channel extends from the first end portion to the second end portion, a part of the flow channel close to the first end portion is closed, the flow channel extends to the second end portion and forms a first opening, the first liquid inlet hole is communicated with the flow channel, the first valve assembly is located at the first opening, and is configured to allow fluid to flow out from the flow channel at the first opening and prevent fluid from flowing back to the flow channel from outside.

Plunger, hydraulic end and plunger pump

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Yantai, China

Anpeng Ge