Pressure Loading/Relief Valve

Useful Information

These Durapipe pressure loading/relief valves are available in sizes 1/2" to 2".

Supplied with Plain union fittings.

The body of these valves are made from acrylonitrile butadiene styrene (ABS).

Operating Temperature: -20°C to 60°C

Suited for use with nominal bore ABS pipe.

ABS solvent cement should be used along with cleaner to glue the plain end and the pipe together.

The seals included in this valve are made from ethylene propylene diene terpolymer (EPDM).

These pressure loading and relief valves from Durapipe operate to provide multiple functions within a single valve body offering both pressure loading and pressure relief within pipework systems. They are simple and easy to use and designed with attached labels on the valve to indicate installation directions.

The pressure loading feature allows a back pressure to be built up within the pipe system of between 0-3 bar, whilst the pressure relief function can be set to between 0-10 bar to provide system protection and works by relieving system pressure once the flow of liquid exceeds the set pressure parameters.

IMPORTANT: The technical data given in this website is for preliminary information purposes only and is published without guarantee. All line drawings are for illustrative purposes only and should not be regarded as wholly accurate in every detail. We reserve the right to withdraw or to alter the specification of any product without notice. For more information, please consult our Terms of Business.


If you require any further information, our excellent customer service team is here to help so please call us on 01794 835835.


Grouped product items
CodeProduct NameList PriceYou SaveYou Pay Quantity
375490DP ABS LR Valve EPDM Union Plain 1/2" £626.43 10%
£563.79
375491DP ABS LR Valve EPDM Union Plain 3/4" £695.38 10%
£625.84
375492DP ABS LR Valve EPDM Union Plain 1" £795.34 10%
£715.81
375493DP ABS LR Valve EPDM Union Plain 1 1/4" £917.50 10%
£825.75
375494DP ABS LR Valve EPDM Union Plain 1 1/2" £1,098.93 10%
£989.04
375495DP ABS LR Valve EPDM Union Plain 2" £1,252.90 10%
£1,127.61