MUELLERFlared Swivel Connection Sight Glasses

MUELLER Sight Glass: Flared Swivel

The MUELLER Sight Glass: Flared Swivel, Brass (MPN A 18113) is a flared swivel connection sight glass made of brass. This industrial component is designed for visual fluid monitoring in piping systems.

SKU 3G-OTH-71640

Brand

MUELLER

Item

Sight Glass: Flared Swivel

Technical Specifications

MUELLER

Manufacturer Part Number

A 18113 

Material

Brass 

View Full Spec Sheet

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

Frequently Asked Questions

What is the MUELLER Sight Glass: Flared Swivel, Brass used for?

The MUELLER Sight Glass: Flared Swivel, Brass (MPN A 18113) is used for visual fluid monitoring in industrial piping systems. Its brass construction and flared swivel connection allow easy alignment and reliable observation of flow, color, and clarity in applications such as HVAC, refrigeration, and process lines.

What are the specifications of the MUELLER Sight Glass A 18113?

The MUELLER Sight Glass A 18113 is a flared swivel connection sight glass made of brass. The manufacturer part number is A 18113. It is designed for visual fluid monitoring in piping systems. For detailed dimensions and pressure ratings, consult the product datasheet or contact 3G Electric.

Where to buy MUELLER Sight Glass A 18113 worldwide?

You can source the MUELLER Sight Glass A 18113 worldwide through 3G Electric. As a global industrial equipment distributor since 1990, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install a MUELLER flared swivel sight glass?

To install the MUELLER flared swivel sight glass, ensure the piping ends are clean and properly flared. Align the swivel nut with the flare and tighten securely by hand, then use a wrench for final torque. Avoid over-tightening to prevent damage. Always follow standard piping practices and check for leaks after installation.

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.

Browse all MUELLER products →Contact our engineers →