Description
Overview:
This brass non-return valve is a compact in-line fitting that allows flow in one direction and stops backflow to protect downstream components. Made from robust brass for long service life, it suits general plumbing, plant, and machinery installations where a reliable one-way function is needed. The valve has 1" (25.4 mm) female-to-female threads for easy connection into existing pipework or hose tails. It is commonly used on pump outlets, distribution manifolds, irrigation runs, and service lines on site equipment. A clear flow-direction arrow is cast into the body to help orientation during fitting, and the hexagonal flats allow secure tightening with a spanner. Suitable for water and other non-corrosive fluids in residential, commercial, and light industrial systems. Manufacturer Part Number: 850 050.
Key Features:
- Solid brass body for durability and corrosion resistance in typical plumbing environments
- 1" (25.4 mm) female-to-female inline design for straightforward integration
- One-way internal mechanism prevents reverse flow and helps maintain system pressure
- Cast-in flow arrow for correct installation orientation at a glance
- Hex flats on the body for easy tightening with a spanner in confined spaces
- Helps protect pumps, meters, filters, and gauges from damage caused by backflow
- Compact form factor suits tight pipe runs and enclosure-mounted assemblies
- Suitable for water and many non-corrosive fluids used in building services and machinery
- Simple to install using standard thread sealing methods (e.g. PTFE tape or approved sealant)
- Reliable, low-maintenance component for everyday service work and upgrades
Typical Applications:
Used on pump discharge lines, irrigation systems, rainwater harvesting setups, pressure washer supply lines, heating and cooling circuits, and general plant plumbing to keep flow moving in one direction. Common on site equipment and workshop installations to prevent siphoning, protect instruments, and maintain prime in pumps.
Also known as:
Check valve, one-way valve, non-return check, NRV, backflow valve, inline non-return, one-direction valve, non-return fitting.
Product Specifications
| L&S Part No. | 850 050 |
|---|---|
| Unit of Sale | 1 |

