MUELLERFlared Swivel Connection Sight Glasses

MUELLER Sight Glass: Flared Swivel

The MUELLER Sight Glass: Flared Swivel, Brass (MPN A 18111) is a flared swivel connection sight glass constructed from brass. This component is designed for visual flow monitoring in industrial piping systems.

SKU 3G-OTH-71626

Also listed as: A18111 · A-18111

Brand

MUELLER

Item

Sight Glass: Flared Swivel

Local availability & support

Delivery: Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment: Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

MUELLER

Manufacturer Part Number

A 18111 

Material

Brass 

Technical Documents

No technical documents available for this product.

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MUELLER Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is a MUELLER sight glass used for?

A MUELLER sight glass with flared swivel connection is used for visual flow monitoring in industrial piping systems. The brass construction provides durability in applications such as lubrication, cooling, and process lines where confirming fluid presence or clarity is critical.

What are the specifications of the MUELLER A 18111 sight glass?

The MUELLER A 18111 sight glass is made of brass and features a flared swivel connection. It is designed for visual flow monitoring in industrial piping systems. The manufacturer part number is A 18111. For exact dimensions and pressure ratings, consult the product datasheet.

Where to buy MUELLER sight glass in worldwide?

3G Electric supplies and delivers the MUELLER A 18111 sight glass worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure the component reaches your facility. Contact us for a quote and delivery timeline to your location.

How to install a MUELLER flared swivel sight glass?

Install the MUELLER sight glass by connecting the flared swivel end to a compatible male flare fitting. Tighten the nut by hand, then use a wrench for a final quarter turn. Avoid over-tightening to prevent damage to the brass body. Always verify flow direction before finalizing the connection.

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 flared swivel 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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