Description
Overview:
This in‐line non return valve is designed for windscreen washer systems that use 5 mm internal diameter hose. It prevents fluid draining back towards the reservoir, so the washer pump primes quickly and the screen jets respond without delay. The compact, straight‐through body is made from durable plastic in a black finish, with moulded barbed tails for a secure push‐fit connection. It is suitable for passenger cars, vans, 4x4s, agricultural and construction machinery with similar washer hose sizes. The valve matches Manufacturer Part Number (MPN) 775 142 and is compatible with 3/16 inch hose (3/16" ≈ 4.76 mm) commonly found on many vehicles and small plant. Use it as a direct replacement or as an upgrade to improve reliability in new or existing washer pipe runs.
Key Features:
- Suits 5 mm internal diameter hose; also fits 3/16" (≈ 4.76 mm) washer tubing
- Prevents backflow to keep lines primed and jets consistent
- Durable plastic construction for long service in road grime and weather
- In‐line, compact design for easy routing in tight engine bays
- Barbed hose tails provide a secure grip on soft washer hose
- Straightforward push‐fit installation; clamps can be added if required
- Helps reduce pump strain and improves first‐press performance at the nozzles
- Resistant to common screenwash fluids and additives
- Directional flow design allows fluid movement in one direction only
- Suitable for cars, vans, 4x4s, tractors, mowers, and compact plant using 5 mm/3/16" washer lines
- Reliable replacement for worn or leaking valves that allow drain‐back
- MPN 775 142 for easy identification and reordering
Typical Applications:
Installed between the washer reservoir and the nozzles on front or rear screens, or in headlamp washer circuits. Useful where pipe runs are long or routed uphill, preventing fluid from draining back when parked. Common on cars and vans, and on machinery with enclosed cabs such as tractors, ride‐on mowers, forklifts, and diggers that use 5 mm (or 3/16" ≈ 4.76 mm) washer hose.
Also known as:
Check valve, one‐way valve, inline check valve, non‐return check valve, anti drain‐back valve, washer hose valve, flow‐stop valve, single‐direction valve.
Product Specifications
| L&S Part No. | 775 142 |
|---|---|
| Unit of Sale | 1 Piece |
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