| Name: | Piston Assembly for Mud Pump Oil Drilling Equipment Accessories Petroleum Machinery Parts |
|---|---|
Product Description
Piston Assembly for Mud Pump Oil Drilling Equipment Accessories Petroleum Machinery Parts
Piston assembly is the major part of the mud pump fluid end. The discharge pressure of mud pump is generated by the up-and-down motion of the piston in the cylinder. Small piston—high pressure and low flow rate; Big piston—low pressure and high flow rate. Metric pump and inch pump adopts metric piston and inch piston respectively.
Material: piston core 42CrMo; Rubber sheet: Buna-N rubber or polyurethane.

The piston assembly is constituted by the piston core, rubber, spring, clamp, etc. Pistoncore is made of 42CrMo and the piston rubber is made of nitrile rubber or polyurethane rubber.
The piston assembly is resistant to high temperature, abrasion, corrosion, and has a long service life, in line with API7K standards.
Metric piston parameters
| Specification | Dimension "A" | Dimension "B" | Weight Kg |
| φ100 | φ103 | 73 | 2.23 |
| φ110 | φ113 | 73 | 2.69 |
| φ120 | φ123 | 73 | 3.21 |
| φ130 | φ134 | 79 | 4.49 |
| φ140 | φ145 | 79 | 5.35 |
| φ150 | φ155 | 79 | 6.11 |
| φ160 | φ165 | 84 | 8.22 |
| φ170 | φ175 | 84 | 9.05 |
| φ180 | φ185 | 84 | 9.81 |
Inch piston parameters
| Specification | Dimension "A" | Dimension "B" | Weight Kg |
| 4″ | φ105 | 73 | 2.2 |
| 4-1/2″ | φ117 | 73 | 3.17 |
| 5″ | φ130 | 79 | 4.5 |
| 5-1/2″ | φ144 | 79 | 5.38 |
| 6″ | φ155 | 79 | 6.32 |
| 6-1/4″ | φ163 | 84 | 8.31 |
| 6-1/2″ | φ169 | 84 | 8.77 |
| 6-3/4″ | φ175 | 84 | 9.43 |
| 7″ | φ181 | 84 | 9.96 |







