1″ Non Return Valve

Description

1″ Non Return Valve

Non-Return Valves are fitted in the end of the fuel line to prevent fuel running back out of the hose line back into the tank.

These are essential for use where the pump requires an initial prime to get it working and you wish to maintain the prime thereafter without the fuel dropping back to the tank, therefore causing excess work for the pump the next time it is used. The pump is working its hardest when it has to be primed as it has to pull the fuel from the tank this is usually working against gravity so the motor and the rest of the parts are working to their fullest, if this can be avoided each time the pump is used then this will obviously extend the life of the parts and prevents breakdowns. It will also ensure that the next time the pump is used it is ready to dispense right away rather than having to re prime itself.

There is a separate strainer basket available for the 3/4″ and 1″ F-F NRVs – please add to cart separately if required.  These Strainer Baskets are Male threaded to fit into the inlet of the Female threaded NRVs. The Strainer has a fine mesh to prevent large debris from being drawn from the bottom of the tank into the hose and then into the pump potentially causing damage.

All threads are BSP and the flow direction is either Female In and Female Out or Male In and Female Out, Sizes available from 3/8″ to 2″ with Female to Female ports and 1/2″ to 2″ with Male to Female ports. The other usage on a non return valve is of course to prevent fuel travelling in an undesired direction in a fluid pipe line.

Tip: Do not fit a NRV where a piece of equipment in the line already has an integral NRV, such as a Tigerloop, because the pump will be struggling to overcome the resistance of two NRVs.

Tip: If you require a 1″ female to female NRV with a filter basket already attached then we can supply this for less than buying a 1″ NRV on its own (Note: The NRV sold on its own with a separate basket is of a stronger construction that the NRV sold complete with basket attached).

As Well as the 1″ Non Return Valve we also offer a 3/8″ version usually used in oil fired heating systems. 3/8″ Non Return Valve

Additional information