Plunger Washer for FMC Bean 40 GPM Pressure Regulator FMC Bean

This is a plunger washer for the FMC Bean 40 GPM pressure regulator. It is a small, thin sealing/seating washer (about 1.13 in across and 0.07 in thick) used in the plunger assembly of that regulator. It weighs about 0.05 lb. This is an aftermarket replacement part offered as a reference equivalent to FMC Bean part number 30398, not an original FMC Bean component.
What it is
A plunger is the polished reciprocating element of a plunger pump fluid end; the high-pressure seal is made by stationary packing around the plunger rather than by a seal on the plunger itself.
Specifications
| Property | Value |
|---|---|
| Flow | 40 GPM |
| Weight | 0.05 lb (≈ 0.02 kg, converted) |
| Width | 1.13 in / 2.9 cm |
| Height | 1.13 in / 2.9 cm |
| Depth | 0.07 in / 0.2 cm |
Manufacturer technical notes
Plunger Washer for FMC Bean 40 GPM Pressure Regulator (SKU: 30398), forged from ASTM A182 F316 stainless steel with PTFE composite sealing layer, Rockwell hardness HRB 85, pressure resistance ≥70MPa, API 7K-compliant for mud pumps (F500/F1300), salt spray tested 1000h corrosion-free, quick-replacement design for zero-leakage sealing under high-pressure drilling.
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing FMC Bean 30398.
FAQ
- What is this washer used for?
- It is a plunger washer used in the plunger assembly of the FMC Bean 40 GPM pressure regulator.
- What does "40 GPM" refer to?
- 40 GPM is the flow rating that identifies the FMC Bean pressure regulator this washer is matched to.
- Is this an original FMC Bean part?
- No. It is an aftermarket replacement supplied as a reference equivalent to FMC Bean part number 30398; the brand and part number are for identification only.
Related parts
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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