Plungers and Pony Rods (Extension Rods or Piston Rods) For

Simplex, Duplex, Triplex, Quadruplex, Quintuplex Plunger Pumps

Next to packing, the plunger is the component of a power pump which normally requires most frequent replacement. The high speed and frictional load of the packing wear the plunger surface. For longer life, plungers can be hardened or coated with a wear-resistant material.

Permian Pump And Power offers HardCo, Colmonoy, Ceramic, Rokide, Tungsten Carbide and Cobalt plungers.

Hard-Co Plungers

The most common plunger for general service that gives the best overall combination of corrosion and wear resistance, compared to other metal coated plungers. Hard-Co plungers can be used in high temperature applications, up to 500°F and up to 10,000psi.

Ceramic

The most popular material of plunger for low temperature/low pressure salt water, chemical, and metering applications, is ceramic. It is excellent for corrosion and abrasion resistance while extending packing life. Recommended pumpage max temp 180°F and max pressure 2,000psi. PPP offers both hollow and solid ceramic designs.

Rokide®

Rokide® plungers are recommended for amine, glycol, fresh water, gasoline, or any other fluids requiring restricted lubrication that is not abrasive. Rokide® plungers are often referred to as chrome oxide plungers. Recommended pumpage max temp 600°F and max pressure 10,000psi.

Tungsten Carbide (TC)

Tungsten Carbide plungers are essentially upgraded Hard-Co plungers. This premium alloy coating gives more wear resistance than standard Hard-Co plungers, but with slightly less resistance to corrosion. TC plungers can be used in high temperature applications, up to 500°F and up to 10,000psi.

Pony Rods (Extension Rods)

We offer OEM and aftermarket pony rods in stainless steel and hardened steel.