303050 Piston Assembly; 6.00 Inch x 1.625 Inch Bore, Series B
Part 303050 is a 6.00 inch piston assembly with a 1.625 inch bore, Series B, for the fluid end of a reciprocating pump. The piston transmits force from the power end to the pumped fluid inside the cylinder liner, carrying the sealing element and reciprocating within the liner bore on every stroke. It fits the W-446 pump and is supplied as an aftermarket replacement for part number 303050, matching the original part's form and fit. The assembly weighs about 14.60 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
Specifications
| Property | Value |
|---|---|
| Weight | 14.60 lb (≈ 6.62 kg, converted) |
| Width | 6.75 in / 17.1 cm |
| Height | 3.75 in / 9.5 cm |
| Depth | 6.75 in / 17.1 cm |
Manufacturer technical notes
Series B 6.00" Piston Assembly 303050, forged 42CrMo steel core with ASTM D2000 NBR rubber vulcanization (Shore A 70±5), quenched+tempered (HRC 48-52), pressure rating 5000psi, API 7K compliant mud pump component, temp. range -20℃~120℃, tensile strength ≥1200MPa, compatible with ceramic liners.
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing 303050.
FAQ
- Which pump does piston assembly 303050 fit?
- It fits the W-446 pump, in the 6.00 inch x 1.625 inch bore Series B size.
- What does the piston assembly do?
- It transmits force from the power end to the pumped fluid inside the cylinder liner, carrying the sealing element as it reciprocates in the liner bore.
- What part number does this replace?
- It is an aftermarket replacement for part number 303050, supplied to match the original part's form and fit.
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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