IAT Products
IAT is a well known, leading brand of valves for potable water installation. All IAT products have well developed technologies and are manufactured to the highest standards. The IAT brand offers professional solutions and an extensive range of products from domestic use to bespoke industrial applications.
Reduced Pressure Zone Valves (Systemtrenner)
The RPZ Anti-Pollution valve is a type BA safety device used to prevent contamination of drinking water through siphoning or backflow up to class 4 fluid category. They are particularly suitable for industrial and commercial applications and can also be used for supplies to buildings within the scope of the water regulations. RPZ Valves operate on the principle of interrupting the continuity of supply and discharging any possible backflow to waste. All types are complete with 3-test sample points for checking pressure and a drain water connection incorporating an 'AA' type air gap.
Pipe Interrupters (Rohrunterbrecher)
Pipe interrupters are anti-pollution devices used to prevent siphonage or backflow in pipework by creating an open vent to atmosphere. Conforming to the requirements of EN1717 they are suitable for working pressures up up to 10 bar and temperatures up to 60°C. The Fig 256A is classified as a DC type suitable for protecting up to fluid category 5. Incorporating
ventilation ports that are totally unrestricted and permanent, water is guided past these air vents using a venturi type nozzle. Since they are
constantly open to atmosphere this stops siphonage and allows the escape of water in theevent of backflow.
The Fig 256B is classified as a DB type suitable for protecting up to fluid category 4. This device has a moving element which seals the ventilation gaps during normal flow conditions. When negative pressures occur on the inlet side which could cause siphonage, the membrane retracts seals the flow ports and simultaneously vents the outlet side of the pipe interrupter.
Other products within the IAT range include Solenoid Valves (Magnetventile), Pipe Disconnectors (Rohrtrenner), Backflow Valves (Rückschlagventile) and Strainers (Schmutzfänger).
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