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NK298S-1/2A

NK298S-1/2A

Product Description

The refilling combination serves automatic filling and refilling from closed heating systems to DIN EN 12828:2003. The refilling combination can be connected in accordance to DIN EN 1717 constantly with the drinking water supply. The refilling combination combines backflow preventer, pressure reducing valve and ball valves in one appliance. The refilling combination contains all devices for refilling a heating installation, according to conforming standards.

Technical Properties

Product description with 1/2" threaded connections
Media Water
Port connection external threads
Nominal pressure PN10
Outlet pressure 1,5 ... 6 bar
Max. media temperature 65 oC
Materials Housing in red bronze or dezincification-resistant brass, high-grade synthetic material discharge connection, valve cartridge, valve insert, spring hood and filter bowl, ball valves in dezincification-resistant brass, diaphragm in fibre-reinforced NBR, seals in NBR and EPDM, adjustment spring in spring steel, fine filter in stainless steel.