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DL PQUIP High Performance Liner Retention System

Quick Change Systems

DL PQUIP High Performance Liner Retention System Quick Change Systems

How it works — 60-second animation

Side view of a hydraulic liner retention system on a mud-pump fluid end.

0 psi 0 MPa Even preload LOCKED Typical liner change-out time Wedge + sledgehammer 45–60 min Hydraulic retention ≈ 15 min Fluid end Liner Retainer nut / lock ring Hydraulic cylinder Pressure gauge High-pressure hose Hand pump Gauge values shown are for demonstration only.
Step 1/6 System overview

Fluid end, liner, hydraulic retainer and hand pump — four parts, one job: keep the liner seated tight under full pump load, without a sledgehammer.

Step 2/6 Insert the liner

The liner slides straight into the fluid-end bore until it lands on its seat. No wedges, no hammering — the sealing face stays clean and undamaged.

Step 3/6 Mount the retainer

The retainer nut spins on hand-tight, then the hydraulic cylinder drops over it and the hose is coupled. No tools yet — the hydraulics do the heavy work next.

Step 4/6 Pressurize with the hand pump

A few strokes drive the annular piston forward, pressing the liner onto its seat with a controlled, even preload — the same force on every degree of the sealing face.

Step 5/6 Lock mechanically, release pressure

Run the lock ring home and vent the hydraulic pressure. The preload is now held by steel, not oil — no creep, no loosening under vibration.

Step 6/6 Liner change-out in minutes

To swap a liner, reverse the steps: re-pressurize, back off the lock ring, vent, and pull the liner — typically one technician, well under 15 minutes.

Learn more: hydraulic liner retention explained →

DLSY is a reliable global supplier of replacement parts for the DL PQUIP High Performance Liner Retention System. We offer a full range of fluid-end components, including PIN, DOWEL, WRENCH, and other critical parts. Our parts are designed for quick change systems and are suitable for use in oil & gas operations worldwide.

FAQ

Who supplies replacement parts for the DL PQUIP High Performance Liner Retention System?

DLSY is a trusted global supplier of replacement parts for the DL PQUIP High Performance Liner Retention System. We offer a full range of components including PIN, DOWEL, WRENCH, and more.

What fluid-end parts are available for the DL PQUIP High Performance Liner Retention System?

DLSY stocks 19 distinct replacement parts for the DL PQUIP High Performance Liner Retention System. These include components such as PIN, DOWEL, WRENCH, and other critical parts used in quick change systems.

Are aftermarket parts available for the DL PQUIP High Performance Liner Retention System?

Yes, DLSY provides a full range of aftermarket and replacement parts for the DL PQUIP High Performance Liner Retention System. Our parts are designed to meet the needs of oil & gas operations globally.

What is the HS code for the DL PQUIP High Performance Liner Retention System?

The HS code for the DL PQUIP High Performance Liner Retention System is 84139100.

What are the key components of the DL PQUIP High Performance Liner Retention System?

Key components include PIN, DOWEL 10000002, BOX, WRENCH FOR RETENTION NUTS 59000109, WRENCH, SPANNER, FOR CYLINDER COVER NUT 59000114, WRENCH, SPANNER, FOR CYLINDER COVER NUT 72000201, Disc Spring, Pressure fitting, Dust cap for pressure fitting, Large O’Ring, and more.

Is the DL PQUIP High Performance Liner Retention System compatible with other brands?

The DL PQUIP High Performance Liner Retention System is specifically designed for DL brand equipment. For compatibility with other brands, please consult the manufacturer’s specifications.

What is the purpose of the DL PQUIP High Performance Liner Retention System?

The DL PQUIP High Performance Liner Retention System is designed to provide secure and efficient retention of liners in fluid end applications, ensuring reliable performance in oil & gas operations.

Where can I find replacement parts for the DL PQUIP High Performance Liner Retention System?

DLSY is a global supplier of replacement parts for the DL PQUIP High Performance Liner Retention System. We offer a full range of components to support maintenance and repair needs.

Replacement parts in stock
19 items
HS code
84139100

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