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Pressure Reducing Valves

Pressure Reducing Valves

Pressure reducing valves are installed in water systems to reduce and stabilise inlet pressures from mains water supplies or boosted water systems, which generally are too high and variable for domestic appliances to function correctly. 

These pressure reducing valves are specifically designed for hot and cold services in semi-commercial or public buildings to equalise either the hot or cold supplies or both and prevent excessive pressure at water outlets such as taps, toilets or dishwashers. 

►Maximum pressure at inlet: 25 bar
►Maximum liquid temperature: 80°C
►Outlet adjustment range: 0.5 - 6 bar (static and dynamic control)
►Type: Female x Female with gauge port.

►Valve body: Brass
►Valve seat: Stainless steel
►Diaphragm: EPDM

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Delivery Costs

Delivery Map


Zone 1 England, Wales & Southern Scotland Under £100 Over £100
Standard 2/3 working days


Express Next working day


Premium Next working day (before 13.00)


Zone 2 Scottish Highlands & Islands, Northern Ireland, Isle of Man, Scilly & Channel Isles Under £100 Over £100
Standard 2/3 working days


Zone 3 Republic of Ireland Under £100 Over £100
Standard 3/5 working days




Orders must be placed before 14.00 for next day and premium next day delivery. 


Exporting Internationally

We offer a first class worldwide export service. Please contact us here for a price.
Model SKU Price ex-VAT Qty
1/2" Pressure Reducing Valve 1799-001 £80.50
3/4" Pressure Reducing Valve 1799-003 £92.40
1" Pressure Reducing Valve 1799-002 £95.68
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Whisper Pumps Ltd, Leen Court, Boughton, Newark, Nottinghamshire, NG22 9ZD