Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 1 5/8 in Connections - Magnetic Check Valves
MUELLERMagnetic Check Valves

MUELLER Refrigerant Check Valve: Magnetic Check Valve, 1 5/8 in Connections

The MUELLER Refrigerant Check Valve is a magnetic check valve designed for refrigerant systems. This copper-bodied valve features 1 5/8 inch connections and a 1 1/8 inch cut out, identified by manufacturer part…

SKU 3G-OTH-71990

Brand
MUELLER
Item
Refrigerant Check Valve: Magnetic Check Valve, 1 5/8 in Connections
Category
Magnetic Check Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

MUELLER
Manufacturer Part Number
A 17942
Material
Copper
Cut Out
1 1/8 in
Connections
1 5/8 in
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

MUELLER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MUELLER Refrigerant Check Valve is a magnetic check valve designed for refrigerant systems. This copper-bodied valve features 1 5/8 inch connections and a 1 1/8 inch cut out, identified by manufacturer part number A 17942.

Frequently Asked Questions

What is a MUELLER refrigerant check valve used for?

A MUELLER refrigerant check valve prevents reverse flow in refrigeration and air conditioning systems. Its magnetic design ensures reliable sealing, protecting compressors and system components from backflow damage in commercial and industrial cooling applications.

What are the specifications of the MUELLER A 17942 check valve?

The MUELLER A 17942 is a copper-bodied magnetic check valve with 1 5/8 inch connections and a 1 1/8 inch cut out. It is designed for refrigerant systems and carries manufacturer part number A 17942.

Where to buy MUELLER refrigerant check valves worldwide?

3G Electric supplies MUELLER refrigerant check valves worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on the A 17942 or other MUELLER valve models.

How to install a MUELLER magnetic check valve?

Install the MUELLER magnetic check valve in the correct flow direction as indicated on the body. Use proper brazing techniques for copper connections and ensure the system is clean and dry. Follow standard refrigeration piping practices for best performance.

Used in

Common applications for MUELLER
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.

MUELLER Products

3G Electric supplies MUELLER magnetic check valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 1 3/8 in Connections, 1 in Cut Out (MPN A 17941). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 1 3/8 in Connections, 1 in Cut Out (MPN A 17941). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 1/2 in Connections, 7/16 in Cut Out (MPN A 17936). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 1/2 in Connections, 7/16 in Cut Out (MPN A 17936). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER Refrigerant Check Valve: Four-Bolt Check Valve, 7/8 in Connections, 15/16 in Cut Out (MPN B 34235). Key specifications — Brand: MUELLER; Material: Brass.
MUELLER
MUELLER Refrigerant Check Valve: Four-Bolt Check Valve, 7/8 in Connections, 15/16 in Cut Out (MPN B 34235). Key specifications — Brand: MUELLER; Material: Brass.
MUELLER Refrigerant Check Valve: Four-Bolt Check Valve, 1 5/8 in Connections, 1 1/16 in Cut Out (MPN B 34238). Key specifications — Brand: MUELLER; Material: Brass.
MUELLER
MUELLER Refrigerant Check Valve: Four-Bolt Check Valve, 1 5/8 in Connections, 1 1/16 in Cut Out (MPN B 34238). Key specifications — Brand: MUELLER; Material: Brass.

More from MUELLER

View all MUELLER parts →
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 5/8 in Connections, 1/2 in Cut Out (MPN A 17937). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 5/8 in Connections, 1/2 in Cut Out (MPN A 17937). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 2 1/8 in Connections, 1 3/8 in Cut Out (MPN A 17943). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 2 1/8 in Connections, 1 3/8 in Cut Out (MPN A 17943). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 3 1/8 in Connections, 1 11/16 in Cut Out (MPN A 17981). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 3 1/8 in Connections, 1 11/16 in Cut Out (MPN A 17981). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 2 5/8 in Connections, 1 1/2 in Cut Out (MPN A 17944). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 2 5/8 in Connections, 1 1/2 in Cut Out (MPN A 17944). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 1/4 in Connections, 5/16 in Cut Out (MPN A 17934). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 1/4 in Connections, 5/16 in Cut Out (MPN A 17934). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 1 1/8 in Connections, 15/16 in Cut Out (MPN A 17940). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 1 1/8 in Connections, 15/16 in Cut Out (MPN A 17940). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 3/8 in Connections, 5/16 in Cut Out (MPN A 17935). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 3/8 in Connections, 5/16 in Cut Out (MPN A 17935). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 7/8 in Connections, 3/4 in Cut Out (MPN A 17939). Key specifications — Brand: MUELLER; Material: Copper.
MUELLER
MUELLER Refrigerant Check Valve: Magnetic Check Valve, 7/8 in Connections, 3/4 in Cut Out (MPN A 17939). Key specifications — Brand: MUELLER; Material: Copper.