
HERZ DZR DRAIN VALVE
DZR brass drain and fill valve for heating and chilled water systems, PN25 rated
The HERZ 2622-2X Swing Check Valve fromย HERZ Armaturen is a flanged, full-bore non-return valve designed to prevent backflow in HVAC and water distribution networks. Constructed from cast iron (GG25) with a ductile iron (GGG40) disc and brass seating ring, the valve ensures tight sealing and reliable operation across a wide range of system pressures.
Its robust design complies with EN 12334 and EN 1092-2 standards and is epoxy-coated for corrosion protection. Suitable for both hot and cold water, it supports glycol mixtures up to 50%.

DZR brass drain and fill valve for heating and chilled water systems, PN25 rated

Motorized butterfly valve with ITQ electric actuator for automated HVAC and water control

Flanged differential pressure controller maintaining constant system pressure balance.

Forged brass 3-way mixing and diverting valve