Gestra AK45 Automatic drainage valve

Replaces hand-operated or separately operated valves on start-upThe AK 45 rapidly and automatically discharges air and condensate from steam systems on start-up and drains residual fluid when the system is stopped. It is also used for frost protection. The integrated spring enables the AK 45 to open without pressure. The valve closes as soon as the operating pressure increases to the closing pressure set for the AK 45. When the operating pressure falls below closing pressure once more, the AK 45 is opened by spring force and drains residual fluid, preventing the formation of a vacuum.USESuitable for all steam and condensate systems:For drainage when starting and stoppingFor frost protectionAutomatic system drainage to prevent water hammer and frost damageInner parts made of corrosion-resistant stainless steelHand-purging knob for removing dirtDN 15 – 25 (½” – 1″)PN 40Closing pressure: 0.8 barDirt strainer with large surface area (Y-strainer)Hand-purging knobEasy-to-install RHOMBUSline body with recessed body gasket and metal base bushingClosing pressure 0.5 barClosing pressure 1.5 barClosing pressure 2.0 bar