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MUELLER Sweat-to-Sweat Connection Diaphragm Valve - Sweat-to-Sweat Connection Diaphragm Valves
MUELLERSweat-to-Sweat Connection Diaphragm Valves

MUELLER Sweat-to-Sweat Connection Diaphragm Valve

The MUELLER Diaphragm Valve (MPN A 14840) is a sweat-to-sweat connection diaphragm valve with a 3/8 in Female Sweat connection, featuring a standard length body and a 0.6 in base-to-port center height. It is A2L…

SKU 3G-OTH-72217

Also listed as: A14840 · A-14840

Brand
MUELLER
Item
Sweat-to-Sweat Connection Diaphragm Valve
Part Number
A 14840
Category
Sweat-to-Sweat Connection Diaphragm Valves
Available to Order
Also known as:A 14840MUELLER
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MUELLER
Manufacturer Part Number
A 14840
Type
Std Lg Body, 0.6 in Base to Port Center Ht
A2L Compatible
Yes

Technical Documents

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

Product Description

The MUELLER Diaphragm Valve (MPN A 14840) is a sweat-to-sweat connection diaphragm valve with a 3/8 in Female Sweat connection, featuring a standard length body and a 0.6 in base-to-port center height. It is A2L compatible, as specified by the manufacturer.

Frequently Asked Questions

What is the MUELLER A 14840 diaphragm valve used for?

The MUELLER A 14840 diaphragm valve is used for on-off or throttling service in HVAC and refrigeration systems. Its sweat-to-sweat connection and A2L compatibility make it suitable for low-pressure liquid or gas lines where leak-tight shutoff is required.

What are the specifications of the MUELLER A 14840 diaphragm valve?

The MUELLER A 14840 is a sweat-to-sweat connection diaphragm valve with a 3/8 in female sweat connection, standard length body, and 0.6 in base-to-port center height. It is A2L compatible per the manufacturer. The MPN is A 14840.

Where to buy the MUELLER A 14840 diaphragm valve worldwide?

3G Electric supplies the MUELLER A 14840 diaphragm valve worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install a MUELLER sweat-to-sweat diaphragm valve?

Install the MUELLER A 14840 by brazing the sweat connections per standard HVAC practices. Ensure the valve is fully open during brazing to protect the diaphragm. After cooling, close the valve slowly to verify leak-tight operation. Always follow local codes.

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 sweat-to-sweat connection diaphragm valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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This MUELLER diaphragm valve features a sweat-to-sweat connection with 1/2 in female sweat ends, a standard length body, and a 0.8 in base to port center height. It is A2L compatible, suitable for use with mildly flammable refrigerants. Commonly used for on-off or throttling service in HVAC and refrigeration systems
MUELLER
This MUELLER diaphragm valve features a sweat-to-sweat connection with 1/2 in female sweat ends, a standard length body, and a 0.8 in base to port center height. It is A2L compatible, suitable for use with mildly flammable refrigerants. Commonly used for on-off or throttling service in HVAC and refrigeration systems

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