Services

RPZ Valve Supply, Installation, Maintenance and Certified Testing

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Diamond Plumb Limited is a UK Specialist RPZ Valve Supplier, RPZ Valve Installer and RPZ Valve Accredited Testing and Maintenance Company.

We provide a specialist service throughout England, Scotland, Wales, the Channel Islands & offshore.

In addition to the Nationwide Installation service we offer a rapid Nationwide RPZ valve supply service. All of the RPZ valves we supply are UK approved (either WRAS or KIWA) and are manufactured by companies including Honeywell, Danfoss Socla, Watts Industries, Caleffi, Nabic and Arrow Valves.

The use of the RPZ valve is an effective method of providing BACKFLOW PROTECTION against contamination of wholesome / potable water (drinking water) at reasonable cost.

The RPZ valve is a “verifiable” device which must be Commissioned and Certified by a properly qualified ACCREDITED RPZ VALVE TESTER.

For Help & Advice on any matter relating to RPZ valves, call now on 07947 595926.

Example Applications

  • Food Processing Plants
  • Commercial Dishwashers in Hotels, Restaurants, Coffee Bars, Pubs etc
  • Car Washing & Degreasing Plants, Breweries
  • Commercial Laundries & Launderettes, Dyeing & Ink factories
  • Printing & Photographic plants
  • Large (not household) heating systems of more than 45kw.
  • Swimming Pool top-up in Hotels & Sports Clubs
  • Hospitals and Health Centres
  • kiwaJet washing
  • Airport de-icing plants

Sourcing & Supply

wrasWe provide a rapid Nationwide RPZ valve supply service. All of the RPZ valve we supply are UK approved (either WRAS or KIWA) and are manufactured by companies such as Honeywell, Watts Industries and Caleffi.

Site Installation & Certification

RPZpic7RPZ valves are installed to protect “wholesome” water (i.e. drinkable potable ) mains water against possible contamination in Category 4 fluids.
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.

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.

Our Accredited RPZ valve Engineers work through out the UK. They are based in areas which enable us to speedily & efficiently carry out RPZ valve installations, RPZ valve Testing & Certifications and RPZ valve Repairs.

We can usually arrange to carry out your work at very short notice or as a planned event.

422818ba295ge23comresMaintenance & Testing

The RPZ valve is a “verifiable” device which must be Commissioned and Certified by a properly qualified accredited RPV valve installer. The installation and periodic testing of RPZ valves is our speciality.

In the UK, the RPZ valve must be tested at least every 12 months by an accredited tester.

We also carry a wide range of RPZ valve spares and maintenance parts for the following RPZ valves: Brandoni, Shubert & Salza, Conbraco, Honeywell, Watts, Danfoss Socla, Caleffi, Arrow and Nabic.

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