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MUELLER Sight Glass: Sweat, Brass, 6 11/16 in Lg - Sweat Connection Sight Glasses
MUELLERSweat Connection Sight Glasses

MUELLER Sight Glass: Sweat, Brass, 6 11/16 in Lg

The MUELLER Sight Glass (MPN A 18118) is a sweat connection sight glass made of brass, with a length of 6 11/16 inches and a cut-out length of 5.41 inches. This component allows visual inspection of fluid flow in…

SKU 3G-OTH-71745

Brand
MUELLER
Item
Sight Glass: Sweat, Brass, 6 11/16 in Lg
Category
Sweat Connection Sight Glasses
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Technical Specifications

MUELLER
Manufacturer Part Number
A 18118
Material
Brass
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MUELLER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MUELLER Sight Glass (MPN A 18118) is a sweat connection sight glass made of brass, with a length of 6 11/16 inches and a cut-out length of 5.41 inches. This component allows visual inspection of fluid flow in piping systems.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the MUELLER Sight Glass A 18118 used for?

The MUELLER Sight Glass A 18118 is used for visual inspection of fluid flow in piping systems. Its brass sweat connection design allows installation in HVAC, refrigeration, or industrial process lines to monitor liquid or gas movement, detect bubbles, or verify system charge without disassembly.

What are the specifications of the MUELLER Sight Glass A 18118?

The MUELLER Sight Glass A 18118 is made of brass, has a length of 6 11/16 inches, and a cut-out length of 5.41 inches. It features a sweat connection for copper pipe installation. The manufacturer part number is A 18118.

Where to buy the MUELLER Sight Glass A 18118 worldwide?

3G Electric supplies the MUELLER Sight Glass A 18118 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 on this brass sweat connection sight glass.

How to install a MUELLER sweat connection sight glass?

To install a MUELLER sweat connection sight glass, clean and flux the copper pipe ends, then solder the sight glass into the line using a torch. Ensure the glass is oriented for clear viewing of fluid flow. Allow the joint to cool before pressurizing the system.

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

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