supporting high-capacity flow and stable downstream pressure in demanding mechanical rooms and boiler plants

Simplified Installation: The alternate tappings (163900) allow for flexible piping configurations and direct mounting of water level monitoring accessories

ensuring the long-term integrity of the cooling circuit

Robust Power Assembly: Large diameter stainless steel diaphragm provides high-force transmission for consistent valve modulation

Common Questions Regarding This Part

Carrier 30GX505674 Check Valve 30067439-890 supporting high-capacity flow and stableThe Carrier 30GX505674 Check Valve is a Genuine Factory Authorized Part (FAP) engineered specifically for high performance Carrier commercial chillers and industrial HVAC systems, including the 30GX and 30HXC series. This OEM refrigerant check valve is critical for maintaining correct refrigerant flow direction and preventing backflow during compressor staging or system shutdown. Unlike generic alternatives, this component is manufactured to precise