Contact us: +44 (0) 161 430 4000

Dereve Relief Valves
Water Savers

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Brass Relief Valves

Stainless Steel Relief Valves

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Wind Up Door Bells

Water Savers

Fusible Plugs

Dereve have designed, patented and manufacture the “Sloflo” water saver.
The Sloflo is designed for use on Automatic Flushing Cisterns. It eliminates the waste of water by fitting this control to automatic flushing toilets.
This control only allows water to be used for cleansing when the other toilet facilities are in use. During night times, weekends, holidays etc., the Sloflo only allows a flush of water at pre-set intervals for keeping the men’s toilets fresh and clean.

For a full data sheet please click here


iso 9001 : 2000Dereve are registered to the ISO 9001:2008 Quality standard.

All of our relief valves are manufactured under and approved to the European Pressure Directive: PED No. 97\23\EC.


For more information on our SloFlo please contact:

Tel: +44 (0) 161 430 4000
Fax: +44 (0) 161 494 1461


Brass Relief Valves|Stainless Steel Relief Valves|Pressure Regulators|Wind Up Door Bells|Water Savers