Valve Assembly
303091 Valve Assembly; AR, Discharge
- Catalogue reference number
- 303091
- Catalogue brand
- Not recorded
Catalogue fields identify reference material. They do not confirm stock, OEM authorization or interchange. Verify the nameplate, original number and edition.
Catalogue specification records
| Original field | Recorded value |
|---|---|
| Weight | 9.20 lb (≈ 4.17 kg, converted) |
| Width | 5.75 in / 14.6 cm |
| Height | 5.25 in / 13.3 cm |
| Depth | 5.25 in / 13.3 cm |
Catalogue description records
The 303091 Valve Assembly is a discharge valve for the fluid end of a reciprocating pump. The discharge valve releases fluid from the pump on the pressure stroke as part of the one-way valve set that controls flow direction. The "AR" designation indicates it is abrasion resistant, intended for abrasive service. This is an aftermarket replacement part supplied under part number 303091 and ships at about 9.2 lb.
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.
Catalogue question records
Original catalogue questions are retained. Fitment and availability need technical review.
- What does the 303091 discharge valve do?
- It releases fluid from the fluid end on the pressure (discharge) stroke, opening to let fluid out and closing to prevent backflow as part of the pump's one-way valve set.
- What does "AR" mean for the 303091 valve?
- AR stands for abrasion resistant, indicating the discharge valve is intended for abrasive service where the pumped fluid carries solids. This is stated in the product name.
- Is 303091 an OEM part?
- It is an aftermarket replacement discharge valve assembly supplied under part number 303091 to match the original by form and fit.
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