Description
Overview:
The Inline Non Return Valve 6mm Tails Aluminium is a compact, lightweight valve designed to allow fluid or air to flow in one direction while preventing backflow. Built with a durable aluminium body, it suits low-pressure circuits in small plant, construction tools, and garden machinery where consistent, one-way flow is important for reliability and safety. With straight inline 6 mm hose tails for flexible tubing, it integrates neatly into tight spaces without additional fittings. Typical uses include fuel lines on small engines, return and breather lines, and general-purpose fluid control on generators, mowers, compact compressors, and sprayers. Manufacturer Part Number: M5491. Its robust construction and simple form factor make it a practical choice for trades, workshops, and DIY maintenance.
Key Features:
- 6 mm hose tail fittings for quick push-on connection with standard clamps
- Aluminium body for strength, low weight, and resistance to wear and corrosion
- Inline, compact design for easy retrofitting in confined spaces
- One-way action prevents backflow to maintain prime and protect components
- Helps reduce the risk of siphoning and fuel drain-back in small engine systems
- Smooth flow path to minimise restriction in low-pressure lines
- Suitable for general-purpose fuel, oil, air, and water-based fluids, subject to system compatibility
- Simple to fit and remove for routine maintenance
Typical Applications:
Used in small engine fuel feed or return lines, breather and vent circuits, primer bulb lines, and general low-pressure fluid transfer. Common across lawn and garden equipment, light construction machinery, generators, compressors, sprayers, and similar plant where preventing reverse flow improves starting, efficiency, and component protection.
Also known as:
Check valve, one-way valve, NRV, non-return check valve, inline backflow valve, anti-return valve, backflow preventer (inline), inline one-way check.
Alternate Part Numbers:
M5491
Product Specifications
| L&S Part No. | 780 100 |
|---|---|
| OEM No. | M5491 |
| Unit of Sale | 1 |
| Size | 6mm |
