Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
MUELLER Sweat Connection Refrigeration Ball Valve - Sweat Connection Refrigeration Ball Valves
MUELLERSweat Connection Refrigeration Ball Valves

MUELLER Sweat Connection Refrigeration Ball Valve

The MUELLER Refrigerant Ball Valve: 89.1 Cv is a sweat connection refrigeration ball valve with a 1 3/8 in female sweat connection. It features no access port and no relief port, and is A2L compatible. The…

SKU 3G-OTH-72625

Also listed as: A17866 · A-17866

Brand
MUELLER
Item
Sweat Connection Refrigeration Ball Valve
Part Number
A 17866
Category
Sweat Connection Refrigeration Ball Valves
Available to Order
Also known as:A 17866MUELLER
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

MUELLER
Manufacturer Part Number
A 17866
Type
No Access Port, No Relief Port
Access Port
No
Relief Port
No
Female Sweat
1 3/8 in
A2L Compatible
Yes

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 Ball Valve: 89.1 Cv is a sweat connection refrigeration ball valve with a 1 3/8 in female sweat connection. It features no access port and no relief port, and is A2L compatible. The manufacturer part number is A 17866.

Frequently Asked Questions

What is the MUELLER Refrigerant Ball Valve A 17866 used for?

The MUELLER Refrigerant Ball Valve A 17866 is used in HVAC and refrigeration systems to control refrigerant flow. Its 1 3/8 in female sweat connection allows direct brazing into copper lines, and A2L compatibility makes it suitable for low-flammability refrigerants like R-32 and R-454B.

What are the specifications of the MUELLER Refrigerant Ball Valve A 17866?

The MUELLER Refrigerant Ball Valve A 17866 has a Cv of 89.1, a 1 3/8 in female sweat connection, no access port, and no relief port. It is A2L compatible. The manufacturer part number is A 17866. This valve is designed for brazed copper line installations in commercial refrigeration.

Where to buy the MUELLER Refrigerant Ball Valve A 17866 worldwide?

You can source the MUELLER Refrigerant Ball Valve A 17866 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this MUELLER valve.

How to install the MUELLER Refrigerant Ball Valve A 17866?

Install the MUELLER Refrigerant Ball Valve A 17866 by brazing the 1 3/8 in female sweat connections into copper refrigerant lines. Use a wet rag to cool the valve body during brazing to prevent damage. Ensure the valve is fully open before brazing and test for leaks after installation.

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.
Not sure this is the right part? Photo-identify it→

MUELLER Products

3G Electric supplies MUELLER sweat connection refrigeration ball 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 →

More from MUELLER

View all MUELLER parts →
This sweat connection refrigeration ball valve has a 3/8 in male sweat connection for brazing into copper lines. It features a 4.3 Cv flow coefficient and is A2L compatible for use with low-flammability refrigerants. The valve has no access port or relief port
MUELLER
This sweat connection refrigeration ball valve has a 3/8 in male sweat connection for brazing into copper lines. It features a 4.3 Cv flow coefficient and is A2L compatible for use with low-flammability refrigerants. The valve has no access port or relief port

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first