303090 Valve Assembly; Suction
The 303090 Valve Assembly is a suction valve for the fluid end of a reciprocating pump. The suction valve admits fluid into the pump on the intake stroke as part of the one-way valve set that controls flow direction. This is an aftermarket replacement part supplied under part number 303090 and ships at about 7 lb.
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.
Specifications
| Property | Value |
|---|---|
| Weight | 7.00 lb (≈ 3.18 kg, converted) |
| Width | 5.75 in / 14.6 cm |
| Height | 5.25 in / 13.3 cm |
| Depth | 5.25 in / 13.3 cm |
Manufacturer technical notes
303090 Valve Assembly; Suction (SKU:303090), forged from 42CrMo alloy steel (tensile strength ≥1100MPa) with induction hardening + hard chrome plating (≥50μm thickness), API 7K compliant, pressure-resistant ≥70MPa, salt spray tested >1500hrs corrosion-free, compatible with Kerr T-50/KM-3500 series.
Verbatim from the Dongli product page on dlhddrilling.com.
Replacement / interchange
Aftermarket replacement cross-referencing 303090.
FAQ
- What does the 303090 suction valve do?
- It admits fluid into the fluid end on the intake (suction) stroke, opening to let fluid in and closing to prevent backflow as part of the pump's one-way valve set.
- Is 303090 an OEM part?
- It is an aftermarket replacement suction valve assembly supplied under part number 303090 to match the original by 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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