Diamond Plumbing RPZ Valve Testing - Nationwide





RPZ Valve Testing - Nationwide RPZ Valve Testing - Nationwide RPZ Valve Testing - Nationwide
Please contact us for further details and prices:-

Cedar Lodge, Priory Lane,
Prestbury, Macclesfield.
SK10 4AE

Tel: 01625 269168
Mob: 07947 595926

Company registration number: 5105998

RPZ VALVE.

The REDUCED PRESSURE ZONE VALVE is a device which protects against BACKFLOW, providing cost effective protection against the contamination of MAINS cold water supply.

Double or Single non return valves (also called a check valves) should prevent backflow but when used with Mains water can be unreliable & fail due to debris found in the Mains. The design of the RPZ Valve is based on a Double Check Valve BUT with the important additional RELIEF Valve which will operate under Backflow conditions, DISCHARGING the potentially CONTAMINATED FLUID.

CONTAMINATION.

RPZ valves are installed to protect "wholesome" water (ie drinkable potable ) mains water against possible contamination in Category 4 fluids. Examples of use are listed on the Diamond Plumb ltd HOME PAGE. The RPZ valve should not be used ( with fluid Category 5 ) where there is a risk of contamination involving Human or Animal Waste, Pathogenic or Radioactive substances or Very Toxic situations. Usually Mortuary, Farm, Butchery & Slaughterhouse premises are not suitable.

RPZ VALVE INSTALLATION.

The Valve should be installed horizontally, above ground with the relief valve discharging downwards into a drain or safe area.

It should be in a "tamper free" environment but capable of inspection and maintenance.

The Valve should not be subject to flooding or freezing or near electrical equipment.

RPZ valves have been protecting water supplies in the USA for over 30 years and are now becoming widely used in the UK.

BACK TO RPZ VALVE TESTING HOME


RPZ VALVES from WATTS INDUSTRIES, RELIANCE WATER CONTROLS and HONEYWELL are recommended:-
IPHE site Reliance Water Controls site

Please visit our official website:-

Reliable Plumbing

diamond_plumbing@yahoo.co.uk

Watts UK site