Water Supply NR-45 PN 16-64 Removable Cover Check Valves for Consumer Connections to Potable Water Supply Description Check valve with a swing-type disc, allows for one-directional flow and prevents liquid return to its source. This valve has a removable lid which allows for the cleaning and maintenance of the valve without the need to remove it from the pipeline. The valve disc is connected to the valve body with an arm. Sealing is performed by the closing of the disc up against the valve seat, located at the inlet to the body. The valve is suitable for use in potable water systems and is compliant with the Israeli Standard 5452 Applications - At consumer connections and valve crossovers - Separation between the inlet and outlet to reservoirs and tanks - General hydraulic usages such as filtration systems Operation With flow stoppage, the disc drops down and closes the valve inlet. The static backpressure from the downstream water column closes the disc up against the valve seat which seals against backflow. Main Features - The valve is manufactured in diameters: 2” — 12” - A working pressure up to 16 bar (tested at 25 bar) with optional valve pressure ratings up to 64 bar. - Maximum working temperature: 90° C. - Blue epoxy-coated FBE coating in compliance with the NSF standard for potable water (Israeli Standard 5452). - Cast body built to withstand effects of water hammer. - Internal parts are made of durable non-corrosive materials, allowing for long term operation under harsh conditions. - Removable upper cover allows for maintenance without the need to remove the valve from the pipeline. - The disc is anchored at two points, preventing fluttering and turbulent flow - Minimal energy losses and smooth water flow, achieved by the complete elevation of the disc into the upper cover opening. - Vulcanized disc — for sealing at low pressure and preventing wear of the sealing area. - Rubber stoppers restrain the movement of the disc at the maximum opening height; no contact between coated metal parts prevents damage to the coating. - The valve can be installed horizontally only. - Can be adapted to different fluid types. - The valve can be manufactured according to any standard flange requirement. Valve Selection - Metal disc sealing for work under extremely hard conditions or where there is rapid wear on the vulcanized disc. - For working pressures higher than 40 bar, please contact the marketing department. - Available with an EPDM Flexible Disc. Note: For best suitability, it is recommended to send the fluid chemical properties along with the valve request. Upon ordering, please specify: model, size, working pressure, thread and flange standard and type of liquid. HEAD LOSS

Nominal Dimensions mm Weight PARTS LIST AND SPECIFICATION Part Material Lifting Ring Bolt Washer Cover Disc Stopper Cotter Pin Pin Disc Arm Shaft Washer O-ring Seal Bearing Bearing Key Bolt O-ring Seal Threaded Bushing Body Washer Nut O-ring Seal Body Seat Body Seat Bolt Steel Zinc Coated Steel Zinc Cobalt Coated Steel Zinc Cobalt Coated Reinforced Nylon Stainless Steel 316 + Vulcanized Rubber EPDM Stainless Steel 316 Stainless Steel 316 Stainless Steel 316 Stainless Steel 316 Stainless Steel 316 EPDM Bronze/Acetal Reinforced Nylon Stainless Steel 316 EPDM Stainless Steel 316 Ductile Iron Steel...