MUELLER Sight Glass: Sweat, Copper, 7 7/8 in Lg
The MUELLER A 18122 is a sweat connection sight glass made of copper, measuring 7 7/8 inches in length with a 5.71-inch cut-out length. This MUELLER-branded component is designed for visual flow monitoring in copper…
SKU 3G-OTH-71917
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Product Description
The MUELLER A 18122 is a sweat connection sight glass made of copper, measuring 7 7/8 inches in length with a 5.71-inch cut-out length. This MUELLER-branded component is designed for visual flow monitoring in copper 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 A 18122 sight glass used for?
The MUELLER A 18122 sweat connection sight glass is used for visual flow monitoring in copper piping systems. It allows operators to observe fluid movement, detect blockages, or confirm proper circulation in industrial HVAC, refrigeration, or process lines. This copper component is installed via sweat (solder) connections for a leak-tight seal.
What are the specifications of the MUELLER A 18122 sight glass?
The MUELLER A 18122 sight glass is made of copper, with a length of 7 7/8 inches and a cut-out length of 5.71 inches. It features sweat connections for copper piping systems. The manufacturer part number is A 18122. This MUELLER component is designed for reliable visual flow monitoring in industrial applications.
Where to buy the MUELLER A 18122 sight glass worldwide?
3G Electric supplies the MUELLER A 18122 sight glass worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact our team to source this MUELLER sweat connection sight glass for your copper piping system. We provide competitive pricing and reliable service.
How to install a MUELLER sweat connection sight glass?
To install the MUELLER A 18122 sight glass, ensure copper pipes are clean and fluxed. Heat the joint evenly and apply solder until it flows into the gap. Allow the connection to cool naturally before pressurizing. Always follow standard copper sweat fitting practices and check for leaks after installation. MUELLER components are designed for durable service.
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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.













