303034 Valve Spring
Part 303034 is a valve spring for the fluid end of a reciprocating pump. It returns the valve body to its seat after each stroke so the suction and discharge valves close promptly. It fits the W-446 pump and is supplied as an aftermarket replacement for part number 303034, matching the original part's form and fit. The spring weighs about 0.79 lb.
What it is
A valve spring returns the valve body to its seat after each stroke, ensuring the suction and discharge valves close promptly.
Pump compatibility
Specifications
| Property | Value |
|---|---|
| Weight | 0.79 lb (≈ 0.36 kg, converted) |
| Width | 2.81 in / 7.1 cm |
| Height | 2.81 in / 7.1 cm |
| Depth | 5.00 in / 12.7 cm |
Manufacturer technical notes
303034 Valve Spring (SKU 303034), forged from 30W4Cr2VA spring steel, quenched+tempered (HRC≥48), salt spray tested 1000hrs corrosion-free, API 6A certified, designed for mud pump overpressure protection, fatigue resistance to ISO 15154-E, fully compatible with FMC/Huaming valve systems.
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing 303034.
FAQ
- Which pump does valve spring 303034 fit?
- It fits the W-446 pump.
- What does the valve spring do?
- It returns the valve body to its seat after each stroke, ensuring the suction and discharge valves close on time.
- What part number does this replace?
- It is an aftermarket replacement for part number 303034, 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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