Stafford Vehicle Components
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  • Prices in currencies other than GBP are for guidance only. The actual rate will be that used by the credit card company at the time of billing.

  • Vat is applicable to all UK orders.
    Vat is also applicable to EU orders unless supported by a Valid EEC Vat number entered in your Account details (or when checking out). THIS WILL BE CHECKED WHEN ORDERS ARE PROCESSED.

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Non Return Valves

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Modern fuels with old style taps

Modern fuels play havoc with old style taps - which can be divided into two types:
Taper plug fitting into a taper hole which uses a grease and the cork lined types. sadly all these suffer with the effect of the fuel which is now available.

The cork lined taps can be dismantled and the cork massaged with silicone grease before reassembly.

The taper plug taps must never be reseated with any cutting paste (if so they are wrecked) but can be dismantled, apply a thin smear of Red Hermetite or Hylomar Blue sealant, put the plug back into the housing in the ‘open’ position and reassemble. leave for a day to let the sealant dry - this then gives the tap taper a sealing seat.

The grease most commonly used is Molykote 3451.

It is possible that these remedies may need to done again at later intervals (depending on use). always ensure that you work safely, draining fuel out of tank before removing tap, taking necessary safety procedures whilst handling the parts and correct and careful re-assembly and refitting.

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NRV1 - Non Return Valve - Flap - 4 JIC

From £117.52 (£141.02 inc. VAT @ 20%)

-4 JIC male threads. Full flow with very low operating pressure. 350psi maximum working pressure. -50 to +170 deg C Operating Temperature range. Fuel, Oil and Water service. Suitable for use with...

Stafford Vehicle Components - Fuel System Components - Fuel Taps & Valves - Non Return Valves
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NRV2 - Non Return Valve - Flap - 6JIC

From £129.86 (£155.83 inc. VAT @ 20%)

-6 JIC male threads. Full flow with very low operating pressure. 350psi maximum working pressure. -50 to +170 deg C Operating Temperature range. Fuel, Oil and Water service. Suitable for use with...

Stafford Vehicle Components - Fuel System Components - Fuel Taps & Valves - Non Return Valves
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NRV3 - Non Return Valve - Flap - 8JIC

From £141.68 (£170.02 inc. VAT @ 20%)

-8 JIC male threads. Full flow with very low operating pressure. 350psi maximum working pressure. -50 to +170 deg C Operating Temperature range. Fuel, Oil and Water service. Suitable for use with...

Stafford Vehicle Components - Fuel System Components - Fuel Taps & Valves - Non Return Valves
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NRV4 - Non Return Valve - Flap - 10 JIC

From £148.23 (£177.88 inc. VAT @ 20%)

-10 JIC male threads. Full flow with very low operating pressure. 350psi maximum working pressure. -50 to +170 deg C Operating Temperature range. Fuel, Oil and Water service. Suitable for use with...

Stafford Vehicle Components - Fuel System Components - Fuel Taps & Valves - Non Return Valves
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NRV5 - Non Return Valve - Spring Check 3/8" BSP Female Threads

From £19.88 (£23.86 inc. VAT @ 20%)

High quality forged brass non return valve with Viton seal suitable for use with petrol or diesel. Working temperature -20 deg C to 130 deg C. Opening pressure 0.025 barg (25cm head of water)....

Stafford Vehicle Components - Fuel System Components - Fuel Taps & Valves - Non Return Valves
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NRV6 - Non Return Valve - Spring Check 1/4"BSP Female Threads

From £18.74 (£22.49 inc. VAT @ 20%)

High quality forged brass non return valve with Viton seal suitable for use with petrol or diesel. Working temperature -20 deg C to 130 deg C. Opening pressure 0.025 barg (25cm head of water)....

Stafford Vehicle Components - Fuel System Components - Fuel Taps & Valves - Non Return Valves
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NRV7 - Non Return Valve - Spring Check Hose tails for 1/4" ID Tube

From £11.16 (£13.39 inc. VAT @ 20%)

Non-return valve with 1/4" push-on spigots, suitable for use with two fuel pumps or to prevent fuel siphoning back to the tank when the pump is switched off. Low opening pressure of approximately...

Stafford Vehicle Components - Fuel System Components - Fuel Taps & Valves - Non Return Valves
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NRV8 - Non Return Valve - Spring Check Hose tails for 5/16" ID Tube

From £12.34 (£14.81 inc. VAT @ 20%)

Non-return valve with 5/16" push-on spigots, suitable for use with two fuel pumps or to prevent fuel siphoning back to the tank when the pump is switched off. Low opening pressure of approximately...

Stafford Vehicle Components - Fuel System Components - Fuel Taps & Valves - Non Return Valves
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NRV9 - Non Return Valve - Spring Check Hose tails for 3/8" ID Tube

From £13.59 (£16.31 inc. VAT @ 20%)

Non-return valve with 3/8" push-on spigots, suitable for use with two fuel pumps or to prevent fuel siphoning back to the tank when the pump is switched off. Low opening pressure of approximately...

Stafford Vehicle Components - Fuel System Components - Fuel Taps & Valves - Non Return Valves
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— part of Vintage
and Classic Spares