MUELLER Valves

Browse MUELLER valves worldwide — 86 refrigeration ball, check, relief & diaphragm valves in stock at 3G Electric. Source genuine parts for HVACR systems.

Genuine

OEM Parts

Expert

Tech Support

1 Day

Quote Response

Worldwide

Shipping

Get a Quote WhatsApp Sales Telegram Sales

Worldwide Shipping

Air & sea freight

Datasheets on Request

Technical specs & drawings

1-Day Quote Response

Singapore-based team

Browse:

Show

Page 2 of 9

MUELLER

MUELLER Sweat Connection Refrigeration Ball Valve

BrandMUELLER

Sign inAvailable

Magnetic check valve with copper body for refrigerant systems. Features 5/8-inch connections and 1/2-inch cut out. Prevents reverse flow to protect system components.

MUELLER

MUELLER A 17937 Magnetic Check Valve, 5/8 in Connections, 1/2 in Cut Out, Copper

BrandMUELLER

Sign inAvailable

Magnetic check valve with copper body and 2 1/8 in connections. Features a 1 3/8 in cut out. Used in refrigeration and air conditioning systems to prevent backflow and ensure one-direction flow of refrigerant.

MUELLER

MUELLER A 17943 Magnetic Check Valve

BrandMUELLER

Sign inAvailable

Magnetic check valve for refrigerant systems. Constructed of copper with 3 1/8 in connections and a 1 11/16 in cut out. Prevents reverse flow in refrigeration and air conditioning piping.

MUELLER

MUELLER A 17981 Magnetic Check Valve

BrandMUELLER

Sign inAvailable

Magnetic check valve with copper body, 1 5/8 in connections, and 1 1/8 in cut out. Used in refrigeration and air conditioning systems to prevent reverse flow and protect compressors from backflow damage.

MUELLER

MUELLER A 17942 Magnetic Check Valve

BrandMUELLER

Sign inAvailable

Magnetic check valve constructed from copper with 2 5/8 inch connections and a 1 1/2 inch cut out. Used in HVAC and refrigeration piping systems to prevent reverse flow and maintain proper refrigerant direction.

MUELLER

MUELLER A 17944 Magnetic Check Valve

BrandMUELLER

Sign inAvailable

Brass four-bolt check valve with 2 5/8-inch connections and 1 7/8-inch cut out. Used in refrigeration and air-conditioning systems to prevent reverse flow in liquid, suction, or hot-gas lines.

MUELLER

MUELLER B 34240 Four-Bolt Check Valve

BrandMUELLER

Sign inAvailable

This four-bolt check valve is constructed of brass and features 1 1/8 in connections with a 1 in cut out. It is used in refrigeration and air-conditioning systems to prevent reverse flow in liquid, suction, or hot-gas lines.

MUELLER

MUELLER B 34236 Four-Bolt Check Valve, 1 1/8 in Connections, 1 in Cut Out, Brass

BrandMUELLER

Sign inAvailable

This sweat connection refrigeration ball valve features a 2 1/8 in female sweat connection for large-diameter copper lines. It has no access port and no relief port, with a flow coefficient of 244 Cv. A2L compatible, it is used to isolate or control refrigerant flow in commercial and industrial refrigeration systems.

MUELLER

MUELLER Sweat Connection Refrigeration Ball Valve

BrandMUELLER

Sign inAvailable

Sweat connection refrigeration ball valve with 2-1/8 in female sweat port and 244 Cv flow coefficient. Includes an access port; no relief port. A2L compatible. Used for isolating or controlling refrigerant flow in commercial and industrial refrigeration systems.

MUELLER

MUELLER Sweat Connection Refrigeration Ball Valve

BrandMUELLER

Sign inAvailable

← Prev 1 2 3 4…9 Next →

Guides & Resources

Gas Valves: Selection & Buying Guide

Frequently asked questions

Common questions about MUELLER Valves from 3G Electric.

What types of MUELLER valves does 3G Electric stock?

We carry 86 MUELLER SKUs including four-bolt check valves, magnetic check valves, unibody refrigeration ball valves (flare and sweat), diaphragm valves, pressure relief valves, and flare fittings, nuts, and bushings for access valves.

How do I choose between flare and sweat connection MUELLER valves?

Flare connections are ideal for quick, tool-friendly assembly and disassembly in refrigeration lines, while sweat (solder) connections provide a permanent, leak-tight joint. Choose based on your system's serviceability needs and installation preferences.

Can 3G Electric help with MUELLER valve sizing and selection?

Yes, our specialists can assist with sizing based on line diameter, pressure, temperature, and application—whether for commercial refrigeration, HVAC, or industrial process control. Contact us with your system specs for guidance.