Which pumps does this piston cup fit?

It is listed to fit FMC Bean L0618HV, L0918 and L0918 HD pumps.

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. It is described as a hemisphere style cup and, like any piston cup, seals against the cylinder liner bore as the piston reciprocates.

Is there an interchange part number?

This is an aftermarket replacement for FMC Bean SKU P509003. The brand and part number are given for identification and cross-reference only and do not indicate OEM manufacture.

Piston Cup 2-1/4 Inch Abrasive Service Supergold Hemisphere Style

Piston Cup 2-1/4 Inch Abrasive Service Supergold Hemisphere Style — Piston Cup aftermarket replacement part

This is a 2-1/4 inch SuperGold piston cup for abrasive service in a hemisphere style, 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 and is a routine wear part. It is sized for FMC Bean L0618HV, L0918 and L0918 HD pumps, and the "abrasive service" designation in the name indicates it is intended for 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

L0618HV
L0918
L0918 HD

Specifications

Property	Value
Weight	0.10 lb (≈ 0.05 kg, converted)
Width	2.25 in / 5.7 cm
Height	2.25 in / 5.7 cm
Depth	1.00 in / 2.5 cm

Manufacturer technical notes

2-1/4" Supergold Hemisphere Piston Cup (SKU P509003). Graded tungsten carbide (HVOF) + polyurethane. 12,000PSI rated, 10x wear life for abrasive slurry service.

Verbatim from the Dongli product page on dlhddrilling.com.

Replacement / interchange

Aftermarket replacement cross-referencing FMC Bean P509003.

FAQ

Which pumps does this piston cup fit?: It is listed to fit FMC Bean L0618HV, L0918 and L0918 HD pumps.
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. It is described as a hemisphere style cup and, like any piston cup, seals against the cylinder liner bore as the piston reciprocates.
Is there an interchange part number?: This is an aftermarket replacement for FMC Bean SKU P509003. 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.

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