Backflow preventor for boilers to 45KW (Fluid class 3 )

Backflow preventor. Compact type. Used to prevent the reverse flow of polluted/contaminated water (fluid class 3). The valve offers protection with regard to back-siphonage as well as backflow. Specially developed for smaller connections to the water supply system, such as with water softeners and central heating boilers > 45 kW. Body Brass (DZR). Spring Stainless steel. Sealing Rubber. Funnel Plastic