VALVE ASSEMBLY; AR, DISCHARGE, SC-170DD
This is an abrasive-resistant (AR) discharge valve assembly for the SC-170DD pump. A fluid-end discharge valve assembly releases fluid on the pressure stroke and typically comprises the valve body, seat, spring and guide. The "AR" designation indicates it is configured for abrasive service. The assembly weighs about 9.2 lb and is an aftermarket replacement part for SKU 303124.
What it is
A fluid-end valve assembly controls one-way flow through the pump — a suction valve admits fluid on the intake stroke and a discharge valve releases it on the pressure stroke. It typically comprises the valve body, seat, spring and guide.
Pump compatibility
Specifications
| Property | Value |
|---|---|
| Weight | 9.20 lb (≈ 4.17 kg, converted) |
| Width | 6.75 in / 17.1 cm |
| Height | 6.00 in / 15.2 cm |
| Depth | 5.25 in / 13.3 cm |
Manufacturer technical notes
VALVE ASSEMBLY; AR, DISCHARGE, SC-170DD (SKU:303124) Manufactured with API 7K certified 20CrMnTi alloy steel, carbonitriding treated (surface hardness ≥850HV), fits SC-170DD mud pump discharge end, tensile strength ≥1250MPa, ASTM D2000 NBR rubber seal, 1000h salt spray test corrosion-free, ensuring high-pressure reliability。
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing 303124.
FAQ
- Which pump does this discharge valve assembly fit?
- It is listed to fit the SC-170DD pump.
- What does "AR" mean in the name?
- AR stands for abrasive-resistant, indicating the valve assembly is configured for abrasive service. As a discharge valve, it releases fluid on the pump's pressure stroke and typically comprises the body, seat, spring and guide.
- What part number is this a replacement for?
- It is an aftermarket replacement part for SKU 303124, listed for identification and cross-reference 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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