Danfoss 003Z1333 Valve 318172-701 Industrial-Grade Build: Designed to withstand

Industrial-Grade Build: Designed to withstand high-ambient temperatures typical of heat pump and central air conditioner applications

Enhanced Durability: Features a floating PTFE diaphragm and stainless steel internal parts for a longer operational lifespan

With a robust 660 PSIG working pressure and a 15% bleed port for balanced pressure during off-cycles

What systems use the A-4400-607 drain valve

For smaller residential models like the Vitodens 100-W or 200-W B2HB

Danfoss 003Z1333 Valve 318172-701 Industrial-Grade Build: Designed to withstandThe Danfoss 003Z1333 is a high performance Pressure Independent Control Valve (PICV) from the AB QM series, specifically engineered for 3 4" hydronic piping systems. This valve eliminates the need for complex Cv calculations by integrating a differential pressure controller directly into the assembly, ensuring 100% valve authority regardless of system pressure fluctuations. Designed with a robust CW 617N brass body, it handles an adjustable flow range