Which pump does this piston cup fit?

It is listed to fit the Kerr KZ-3150PT pump.

What does "abrasive service" mean here?

"Abrasive service" is a duty descriptor from the part name, indicating the cup is intended for applications pumping abrasive fluids. Like any piston cup it seals against the cylinder liner bore as the piston reciprocates and is a routine wear part.

Is there an interchange part number?

This is an aftermarket replacement for Kerr SKU KZ-263G-187RD. The brand and part number are given for identification and cross-reference only and do not indicate OEM manufacture.

PISTON CUP 1-7/8 INCH ABRASIVE SERVICE SUPERGOLD FOR KERR KZ-3150PT

PISTON CUP 1-7/8 INCH ABRASIVE SERVICE SUPERGOLD FOR KERR KZ-3150PT — Piston Cup aftermarket replacement part

This is a 1-7/8 inch SuperGold piston cup for abrasive service, the flexible sealing element fitted to the piston in the fluid end of a reciprocating pump. It seals against the cylinder liner bore as the piston reciprocates, which makes it a regular wear part. It is sized for the Kerr KZ-3150PT pump, and the "abrasive service" designation in the name indicates it is intended for duty pumping abrasive fluids.

What it is

A piston cup is the flexible sealing element fitted to the piston in the fluid end. It maintains the seal against the cylinder liner bore as the piston reciprocates, so wear here directly affects volumetric efficiency.

Pump compatibility

KZ-3150PT

Specifications

Property	Value
Weight	0.20 lb (≈ 0.09 kg, converted)
Width	（无）
Height	（无）
Depth	（无）

Manufacturer technical notes

1-7/8" SuperGold Piston Cup (SKU KZ-263G-187RD). Tungsten-carbide reinforced polyurethane. 5x wear resistance, 8,000PSI rated, designed for KZ-3150PT abrasive service.

Verbatim from the Dongli product page on dlhddrilling.com.

Replacement / interchange

Aftermarket replacement cross-referencing Kerr KZ-263G-187RD.

FAQ

Which pump does this piston cup fit?: It is listed to fit the Kerr KZ-3150PT pump.
What does "abrasive service" mean here?: "Abrasive service" is a duty descriptor from the part name, indicating the cup is intended for applications pumping abrasive fluids. Like any piston cup it seals against the cylinder liner bore as the piston reciprocates and is a routine wear part.
Is there an interchange part number?: This is an aftermarket replacement for Kerr SKU KZ-263G-187RD. The brand and part number are given for identification and cross-reference only and do not indicate OEM manufacture.

Related parts

See all Piston Cup →

All brand names, model numbers and part numbers are used for identification and cross-reference only and do not imply original-equipment manufacture. This is an aftermarket replacement part.

Need a quote or part lookup? Contact our team.