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MUELLER

Mueller is a brand recognized in the refrigeration and air conditioning industry for its range of components designed for system maintenance, flow control, and protection. The product line includes steel shell filter driers, sweat connection refrigeration ball valves, magnetic check valves, and flare nuts and bushings for access valves. These components are used in commercial and industrial refrigeration systems, HVAC installations, and process cooling applications. Mueller components are constructed from materials such as brass, copper, and steel, with specifications that include pressure ratings up to 700 psi for flare nuts, desiccant cores in filter driers for moisture removal, and A2L compatibility in ball valves for use with low-flammability refrigerants. The filter driers are available in capacities ranging from 4 to 17 tons, with lengths from 4.4 to 9.1 inches, and feature steel shells for durability. Ball valves offer Cv ratings from 6.2 to 114, with female or male sweat connections in sizes from 1/2 to 1 5/8 inches, and options for access ports. Magnetic check valves are available with copper bodies and 1 3/8-inch connections. 3G Electric supplies Mueller components globally, providing engineers and procurement specialists with access to these parts for system design, retrofits, and replacements. The product range supports standard and low-GWP refrigerants, including HFC and HFO groups, and is suitable for applications requiring reliable flow control and filtration.

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About MUELLER

Mueller is a brand recognized in the refrigeration and air conditioning industry for its range of components designed for system maintenance, flow control, and protection. The product line includes steel shell filter driers, sweat connection refrigeration ball valves, magnetic check valves, and flare nuts and bushings for access valves. These components are used in commercial and industrial refrigeration systems, HVAC installations, and process cooling applications. Mueller components are constructed from materials such as brass, copper, and steel, with specifications that include pressure ratings up to 700 psi for flare nuts, desiccant cores in filter driers for moisture removal, and A2L compatibility in ball valves for use with low-flammability refrigerants. The filter driers are available in capacities ranging from 4 to 17 tons, with lengths from 4.4 to 9.1 inches, and feature steel shells for durability. Ball valves offer Cv ratings from 6.2 to 114, with female or male sweat connections in sizes from 1/2 to 1 5/8 inches, and options for access ports. Magnetic check valves are available with copper bodies and 1 3/8-inch connections. 3G Electric supplies Mueller components globally, providing engineers and procurement specialists with access to these parts for system design, retrofits, and replacements. The product range supports standard and low-GWP refrigerants, including HFC and HFO groups, and is suitable for applications requiring reliable flow control and filtration.

Common Applications

  • Commercial refrigeration systems — Mueller steel shell filter driers for moisture and contaminant removal in liquid lines.
  • HVAC installations — Mueller sweat connection ball valves for flow control in refrigerant circuits.
  • Industrial process cooling — Mueller magnetic check valves to prevent backflow in refrigerant piping.
  • Refrigeration system maintenance — Mueller flare nuts and bushings for access valve connections.
  • Low-GWP refrigerant systems — Mueller A2L-compatible ball valves for use with low-flammability refrigerants.
  • Retrofit projects — Mueller filter driers and valves for upgrading existing refrigeration equipment.

Frequently asked questions

Common questions about MUELLER from 3G Electric.

What types of refrigerants are Mueller filter driers compatible with?

Mueller liquid line filter driers, such as the steel shell models with desiccant cores, are compatible with HFC and HFO refrigerant groups. For example, the A 18703 and A 18747 models are listed as compatible with HFO refrigerants, while the A 18655 is compatible with HFC refrigerants. Always verify compatibility with your specific refrigerant type and system requirements before installation.

Are Mueller ball valves suitable for use with A2L refrigerants?

Yes, several Mueller sweat connection refrigeration ball valves are marked as A2L compatible. Models such as the A 17867 (114 Cv, 1 5/8 in female sweat), A 18940 (10 Cv, 5/8 in female sweat), and AQ17861C (6.2 Cv, 1/2 in male sweat) are designed for use with low-flammability A2L refrigerants. These valves include features like access ports and no relief ports, and are constructed for sweat connections.

What is the maximum pressure rating for Mueller flare nuts?

Mueller flare nuts, such as the A 05052 model, are rated for a maximum pressure of 700 psi. These brass flare nuts and bushings are designed for access valves and feature 3/8 in female SAE connections. They are suitable for use in refrigeration systems where pressure ratings up to 700 psi are required.

How do Mueller magnetic check valves function in refrigerant systems?

Mueller magnetic check valves, like the A 17941 model, use a magnetic mechanism to allow refrigerant flow in one direction while preventing backflow. These valves have copper bodies and feature 1 3/8-inch connections with a 1-inch cut out. They are designed for use in refrigerant lines to maintain system efficiency and prevent reverse flow.

What sizes and capacities are available for Mueller steel shell filter driers?

Mueller steel shell filter driers are available in capacities for systems ranging from 4 to 17 tons. For example, the A 18655 is for 4-ton systems with a 4.4-inch length and 3/8 in female sweat connections, while the A 18703 is for 17-ton systems with a 6.8-inch length, and the A 18747 is for 12-ton systems with a 9.1-inch length. All use desiccant cores and steel shells.

Does 3G Electric supply MUELLER products?

Yes — 3G Electric (S) Pte. Ltd. supplies MUELLER products. We stock the MUELLER catalog and supply genuine factory-original products with full manufacturer warranty and technical support.