KT - LINER 3 1/2" CHROME
This is a 3-1/2" chrome cylinder liner, the replaceable bore in which the piston reciprocates inside the pump fluid end. As a primary wear surface, it is matched to the pump's bore size and is an aftermarket replacement for Kerr KT-285-350CH. It fits the JT7020, KT-3350PT, KT-3400PT, T-35 and T-40 pumps and weighs about 12 lb.
What it is
This is a replacement part for the listed reciprocating pump models, supplied to match the original component's form and fit.
Pump compatibility
Specifications
| Property | Value |
|---|---|
| Weight | 12.00 lb (≈ 5.44 kg, converted) |
| Width | （无） |
| Height | （无） |
| Depth | （无） |
Manufacturer technical notes
KT-LINER 3 1/2" CHROME (SKU KT-285-350CH) is made of ASTM A278/A278M gray cast iron base body with electroplated hard chrome process (thickness>0.15mm), Rockwell hardness HRC 60-65, suitable for API 7K mud pumps (F1300/F1600), pressure difference resistance>35MPa, salt spray test 500h no corrosion, tensile strength>250MPa, ensuring long-term wear resistance under high-pressure drilling conditions.
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing Kerr KT-285-350CH.
FAQ
- Which pumps does this 3-1/2" chrome liner fit?
- It is listed to fit the JT7020, KT-3350PT, KT-3400PT, T-35 and T-40 pumps.
- What is a cylinder liner and what does it do?
- It is the replaceable bore the piston reciprocates in, sized to the pump's 3-1/2" bore; it is one of the main wear surfaces in the fluid end.
- What reference part number does it replace?
- It is an aftermarket replacement for Kerr part KT-285-350CH; the brand and number are for identification only and do not imply OEM manufacture.
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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