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- Copper fittings manufactured to EN1254-1
similar to metal pipe
These valve comes with 3/4" or 1" compression connections on one side and a pump connection on the other side
no naked flames and no special tools
- 100% oxygen tight
Compression Combined Non Return & Isolation Valve extension - Copper fittings manufactured toDESCRIPTION: A Non Return Valve allows liquid to flow in one direction only. The valve is only opened when there is a flow of water, thus if the flow stops or if there is a back flow of water the valve closes. The spring check non return valve can be used vertically, horizontally or in oblique angles; an arrow is stamped on the body to indicate the direction of flow. Valves are available with both female BSP threaded connections ranging in size from 1