Which pump does this piston holder fit?

It fits the FMC Bean L0618HV reciprocating pump and is for the hemisphere-style cup configuration.

What does "hemisphere style cup only" mean?

It indicates the holder is matched to the hemisphere-style piston cup rather than other cup styles.

This is an aftermarket replacement supplied to match FMC Bean part P510072; the brand and part number are listed for identification and cross-reference only, not to claim OEM manufacture.

Piston Holder for FMC Bean L0618HV/L0918HD Hemisphere Style Cup Only

Piston Holder for FMC Bean L0618HV/L0918HD Hemisphere Style Cup Only — Piston aftermarket replacement part

This is a piston holder for FMC Bean reciprocating pumps using the hemisphere-style cup. As a piston-side component in the fluid end, it carries and retains the sealing cup on the piston assembly, which reciprocates within the cylinder liner bore on every stroke. The name notes that it is for the hemisphere-style cup configuration. It fits the FMC Bean L0618HV pump and weighs about 1.18 lb.

What it is

A pump piston transmits force from the power end to the pumped fluid inside the cylinder liner. It carries the sealing element and reciprocates within the liner bore on every stroke.

Pump compatibility

L0618HV

Specifications

Property	Value
Weight	1.18 lb (≈ 0.54 kg, converted)
Width	6.4 cm
Height	6.4 cm
Depth	6.4 cm

Manufacturer technical notes

Hemisphere Cup Piston Holder for FMC BEAN L0618HV/L0918HD (SKU:P510072), forged from 440C stainless steel, vacuum heat-treated (HRC58-62) with precision machining. Complies with API 7K mud pumps, pressure resistance ≥120MPa, 500h salt spray corrosion-free, designed for hemisphere cup sealing systems to enhance hydraulic stability

Verbatim from the Dongli product page on dlhddrilling.com.

Replacement / interchange

Aftermarket replacement cross-referencing FMC Bean P510072.

FAQ

Which pump does this piston holder fit?: It fits the FMC Bean L0618HV reciprocating pump and is for the hemisphere-style cup configuration.
What does "hemisphere style cup only" mean?: It indicates the holder is matched to the hemisphere-style piston cup rather than other cup styles.
Is this an OEM part?: This is an aftermarket replacement supplied to match FMC Bean part P510072; the brand and part number are listed for identification and cross-reference only, not to claim OEM manufacture.

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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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