MUELLER Valves

Browse MUELLER valves International—86 in-stock refrigeration ball, check, relief valves & fittings. Source genuine parts for HVAC/R systems from 3G Electric.

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This sweat connection refrigeration ball valve features a 3 1/8 in female sweat connection and an integrated access port for system service and diagnostics. It has no relief port and is A2L compatible, suitable for use with low-flammability refrigerants. Commonly used in commercial and industrial refrigeration systems to isolate or control refrigerant flow in large-capacity lines.

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MUELLER AC17870 Sweat Connection Refrigeration Ball Valve

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Sweat connection refrigeration ball valve with 7/8 in female sweat inlet and outlet for brazed copper tubing. Features an access port for service or pressure readings, no relief port, and is compatible with A2L refrigerants. Used in HVAC and refrigeration systems for isolating refrigerant flow.

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MUELLER AQ17864C Sweat Connection Refrigeration Ball Valve

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This four-bolt check valve is constructed from brass and features 1 3/8 in connections with a 1 1/16 in cut out. It is used in HVAC and refrigeration systems to prevent reverse flow of refrigerant, ensuring one-directional flow and protecting system components.

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MUELLER Four-Bolt Check Valve

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MUELLER Diaphragm Valve: 1/4 in Female Sweat, Extended Lg Body

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Brass four-bolt check valve with 3 1/8-inch connections and 1 7/8-inch cut out. Used in HVAC and refrigeration systems to prevent reverse flow of refrigerant, ensuring one-directional flow and protecting system components.

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MUELLER Four-Bolt Check Valve

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This sweat connection refrigeration ball valve features a 1/2 in male sweat connection and an access port for service access. It has no relief port and is compatible with A2L refrigerants. The valve operates within a temperature range of -40°F to 300°F, suitable for controlling refrigerant flow in HVAC and refrigeration systems.

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MUELLER Sweat Connection Refrigeration Ball Valve

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This sweat connection refrigeration ball valve features a 1 5/8 in female sweat connection for brazing into copper lines. It includes an access port for service or pressure checks and is A2L compatible for use with low-flammability refrigerants. No relief port is provided.

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MUELLER AC17867 Sweat Connection Refrigeration Ball Valve

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MUELLER AP17861C Sweat Connection Refrigeration Ball Valve

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MUELLER A 14838 Sweat-to-Sweat Connection Diaphragm Valve

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MUELLER A 14833 Flare-to-Flare Connection Diaphragm Valve

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