• LinkedIn Social Icon
  • Twitter Social Icon

North of Shengjing Overpass, Zhangqiu District, Jinan City, Shandong Province, China.

Mr. Mark Yan

+86 18653126720

Copyright © 2018 Jinan Longchao Petroleum Machinery Co.,Ltd


Mud  Pump Valve Assembly

Valve assembly is installed in the module of mud pump fluid end. It consists of valve body, valve insert and valve seat.


Types: full open, three web, four web

Size: API 4#,5#,6#,7#,8#

Material: solid forged by high quality alloy steel 20Cr

Manufacturing process: Forging, carburizing and quenching

Depth of carburized layer: 1.80~2.22mm

Hardness: HRC58~65

Valve insert material: CPU (composite polyurethane)

                                      TPU (high temperature resistance polyurethane)

                                      NBR (nitrile rubber buna)       

Surface treatment: Grit blasting

Temperature tolerance property: -60℃~100℃

Full Open Valve and Seat

also named wing guided with full open seat;

The valve insert can be snapped on easily or bonded urethane insert.

Connection between guide wing and valve body: 

inertia welded and solid forged

There are different styles:

regular full open valve and seat

full open valve and seat with bonded insert

roughneck style full open valve and seat

G2 style full open valve and seat

3 web/4 web design Valve and Seat

also named stem guided with full open seat;

4 web design valve and seat=cross arms valve and seat

Well Service Fracturing/Plunger Pump Valve and Seat

Valve Insert

Valve Spring


Mud Pump Parts Expert