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3G Electric
MUELLER B 34240 Four-Bolt Check Valve - Four-Bolt Check Valves
MUELLERFour-Bolt Check Valves

MUELLER B 34240 Four-Bolt Check Valve

The MUELLER Refrigerant Check Valve is a four-bolt check valve constructed from brass. This model, manufacturer part number B 34240, features 2 5/8-inch connections and a 1 7/8-inch cut out.

SKU 3G-OTH-72082

Also listed as: B34240 · B-34240

Brand
MUELLER
Item
B 34240 Four-Bolt Check Valve
Part Number
B 34240
Category
Four-Bolt Check Valves
Available to Order
Also known as:B 34240MUELLER
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

MUELLER
Manufacturer Part Number
B 34240
Material
Brass
Cut Out
1 7/8 in
Connections
2 5/8 in

Technical Documents

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

Product Description

The MUELLER Refrigerant Check Valve is a four-bolt check valve constructed from brass. This model, manufacturer part number B 34240, features 2 5/8-inch connections and a 1 7/8-inch cut out.

Frequently Asked Questions

What is a MUELLER four-bolt refrigerant check valve used for?

A MUELLER four-bolt refrigerant check valve prevents reverse flow in refrigeration and air-conditioning systems. It is used in liquid, suction, or hot-gas lines to protect compressors and ensure one-direction flow. The brass construction resists corrosion in industrial and commercial HVACR applications.

What are the specifications of the MUELLER B 34240 check valve?

The MUELLER B 34240 is a four-bolt check valve made of brass. It has 2 5/8-inch connections and a 1 7/8-inch cut out. This model is designed for refrigerant lines and is manufactured by MUELLER, a recognized brand in HVACR components.

Where to buy a MUELLER B 34240 check valve worldwide?

3G Electric supplies the MUELLER B 34240 four-bolt check valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this brass refrigerant check valve.

How to install a MUELLER four-bolt check valve?

Install the MUELLER four-bolt check valve in the correct flow direction as indicated by the arrow on the body. Use appropriate gaskets and torque the bolts evenly to the manufacturer's specification. Ensure the line is clean and free of debris before installation to prevent leakage.

Used in

Common applications for MUELLER
Commercial refrigeration — Mueller diaphragm valves (e.g., MPN A 14841) for refrigerant flow control in supermarket racks and cold storage.
HVAC systems — Mueller sight glasses (e.g., MPN A 18101) for monitoring refrigerant charge and detecting moisture in air conditioning lines.
Industrial process cooling — Mueller ball valves (e.g., MPN A 17934) for isolating flow in chiller and process piping.
Refrigeration compressor protection — Mueller magnetic check valves (e.g., MPN A 17939) to prevent backflow and compressor damage.
A2L refrigerant systems — Mueller A2L-compatible valves and components for use with low-flammability refrigerants in new equipment.
Refrigerant piping maintenance — Mueller check valves and sight glasses for system diagnostics and repair in HVAC and refrigeration.
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MUELLER Products

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

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Compatible alternatives & equivalents

Cross-referenced by specification & description
ZURN
ZURN
The ZURN 8-350 is an 8-inch double check backflow preventer with flange x flange connections and NRS gate valve shut-off valves. It has an overall length of 60.88 inches. This device is used in commercial and industrial water systems to prevent backflow in non-health-hazard cross-connections, such as irrigation, fire sprinkler, and boiler feed lines
ZURN
ZURN
Double check backflow preventer for water lines, with 2 1/2 in pipe size and groove x groove connections. Features NRS gate valve shut-off and operates in temperatures from 33°F to 140°F. Overall length is 35.13 in
ZURN
ZURN
Double check backflow preventer for non-health-hazard cross-connections in water systems. 8-inch pipe size with Groove x Groove connections and NRS gate valve shut-offs. EPDM seals, temperature range 33°F to 140°F. Overall length 62 inches

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