SNAP-RING PONY ROD SEAL HOLDER FOR KERR KM-3250PT/KM-3300PT/T30MMPT
This is the snap-ring pony rod seal holder for Kerr KM-3250PT / KM-3300PT / T30MMPT pumps. It works with the pony rod, the intermediate rod that runs between the crosshead and the piston or plunger rod through the oil-seal housing separating the power end from the fluid end. The snap ring retains the rod's seal holder in position. It is an aftermarket replacement that interchanges with Kerr part number KM-28S and fits the T30M pump.
What it is
A pony rod (intermediate rod) extends between the crosshead and the piston or plunger rod, passing through the oil-seal housing that separates power end from fluid end.
Pump compatibility
- T30M
Specifications
| Property | Value |
|---|---|
| Weight | 0.01 lb (≈ 0.00 kg, converted) |
| Width | 1.82 in / 4.6 cm |
| Height | 1.82 in / 4.6 cm |
| Depth | 0.07 in / 0.2 cm |
Manufacturer technical notes
Snap-Ring Pony Rod Seal Holder for KERR KM-3250PT/KM-3300PT (SKU: KM-28S) API 7K-certified 316 stainless steel (tensile strength ≥620MPa) with solution annealing (1050℃ water-cooled) and electropolishing (Ra≤0.2μm), compatible with KM-3250PT/KM-3300PT mud pumps. Salt spray tested >2000h corrosion-free, paired with fluororubber O-rings (-20°C~200°C temperature resistance), dynamic leakage rate ≤0.02mL/min
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing Kerr KM-28S.
FAQ
- Which pump does this snap ring fit?
- It fits the Kerr T30M pump, and the name also references the KM-3250PT, KM-3300PT and T30MMPT applications it is associated with.
- What does this part do?
- It is a snap ring that retains the pony rod's seal holder in position. The pony rod passes through the oil-seal housing that separates the power end from the fluid end.
- What part number does it cross-reference?
- It is an aftermarket replacement that interchanges with Kerr part number KM-28S; the brand and number are listed 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.
Need a quote or part lookup? Contact our team.