Description
Overview:
This air valve is a small but essential service part for portable water pumps, helping the pump manage airflow during priming and normal operation. Built from corrosion‐resistant polymer with durable elastomer sealing components, it is designed to cope with wet, gritty site conditions while maintaining a tight seal. By controlling the movement of air in the pump body, it helps prevent air locks, supports stable suction, and contributes to reliable flow. It is purpose‐made for Koshin water pumps and fits models such as PBX-55011 and PBX-55022. Suitable for routine maintenance or repair, it is a practical replacement when the original valve has hardened, cracked, or no longer holds a seal after long use or storage.
Key Features:
- Regulates airflow in the pump chamber to aid easy priming and steady performance
- Replacement for OEM reference 0430625 to restore correct function
- Corrosion‐resistant materials for long service life in damp and muddy environments
- Elastomer seal minimises air ingress and helps the pump hold prime
- Straightforward to fit with basic hand tools; no modifications required on listed models
- Helps reduce air lock issues and supports consistent discharge flow
- Suitable for professional service schedules and DIY maintenance
- Matched fitment for the specified Koshin PBX series models
Typical Applications:
Used when a pump becomes slow to prime, loses prime during use, or shows unstable flow. Common in site dewatering, flood response, landscaping, irrigation, and general transfer of clean or silty water. Ideal for scheduled overhauls or after periods of storage when rubber components can harden, ensuring the water pump returns to dependable operation with predictable suction and discharge.
Also known as:
Air control valve, pump air valve, air release valve, breather valve, vent valve, priming valve, air bleed valve. These terms refer to the same part that manages trapped air in the pump body to support priming and consistent flow.
Fits Models:
PBX-55011, PBX-55022, PBX7-55011, PBX7-55022
Alternate Part Numbers:
0430625, 550 625
Product Specifications
| L&S Part No. | 550 625 |
|---|---|
| Unit of Sale | 1 |
| Applications | PBX-55011, PBX-55022, PBX7-55011, PBX7-55022 |
| Machine Type | Pumps |
| Fits Brands | Koshin |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
Related Products
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
