High-Performance Liner Retention System

Reduce Drilling Downtime and HSE Risks

Forum’s high-performance (HP) liner retention system—part of the P-Quip® fluid end mud pump solution—is a key component of your drilling operation. The exclusive, patent-pending system is simple and easy to operate, and can:

  • Significantly reduce liner change out times by 75%
  • Lower lifecycle costs
  • Minimize safety risks by reducing maintenance operations and drilling downtime

Maximize Drilling Efficiency

The HP system has been designed to hold liners firmly to the fluid end, while drilling, by means of powerful spring mechanisms. Liner movement during high-pressure operations is almost imperceptible, resulting in improved liner and piston life. Furthermore, since the spring force is of known value, under and over tightening is almost impossible.



  • Decreased downtime, 75% faster liner change out times
  • Inherently safe, no hammers or cheater bars required to install
  • Lowered lifecycle cost
  • Improved efficiency since the positive liner retention design helps eliminate liner movement


  • Automatic clamping means no more under- or over-tightening
  • Easy operation with a conventional air- or hand-operated hydraulic pump
  • Direct replacement for OEM equipment
  • Versions available for most pumps from 1,000 to 2,200 HP