VALVE INSERT DISCHARGE RED (1090-6219F)
This red discharge valve insert (1090-6219F) is a fluid-end valve part used in the discharge valve of a Kerr piston pump, which controls one-way flow by releasing fluid on the pressure stroke; "red" identifies this version of the insert. It is supplied as an aftermarket replacement for Kerr part number KA-77R, matching the original part's form and fit. The insert fits the Kerr KA-3500PT, T50 and T50-PT models and weighs about 0.17 lb.
What it is
This valve part belongs to the fluid-end valve set that controls one-way flow through the pump on the suction and discharge strokes.
Pump compatibility
- KA-3500PT
- T50
- T50-PT
Specifications
| Property | Value |
|---|---|
| Weight | 0.17 lb (≈ 0.08 kg, converted) |
Manufacturer technical notes
Red Discharge Valve Insert (1090-6219F) (SKU KA-77R), molded from ASTM D2000 NBR rubber with sulfur curing (hardness 70±5 Shore A), API 7K-compliant mud pump component, pressure-resistant ≥25MPa, salt spray tested 1000h corrosion-free, compatible with ceramic liners for 8000h MTBF, fits EMSCO/FMC series.
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing Kerr KA-77R.
FAQ
- Which pumps does the red discharge valve insert KA-77R (1090-6219F) fit?
- It fits the Kerr KA-3500PT, T50 and T50-PT models.
- What is a discharge valve insert for?
- It is a valve part used in the pump's discharge valve, which controls one-way flow by releasing fluid on the pressure stroke; "red" identifies this version.
- What part numbers identify this insert?
- It is supplied as an aftermarket replacement for Kerr part number KA-77R and is also referenced as 1090-6219F, 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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