Aeroflex A7812 Pipe Insulation 7/8 in Id 1/2 in Wall R-3.2

Product Description

The AEROFLEX A7812 is a flexible closed-cell elastomeric pipe insulation sleeve designed to limit heat gain and condensation on mechanical piping systems. With a 7/8-inch inner diameter and a 1/2-inch wall thickness, it delivers an R-3.2 thermal resistance rating that meets common energy code requirements for insulating refrigerant suction lines, chilled water piping, and domestic cold water lines. Licensed HVAC technicians and plumbers install this product during new construction and retrofit applications where moisture control and thermal efficiency are required.

The A7812 is suited for residential and light commercial mechanical systems where 7/8-inch OD copper tubing or equivalent piping is present. Typical applications include refrigerant suction line insulation on split-system air conditioners and heat pumps, chilled water supply and return lines, and cold domestic water piping in both exposed and concealed installations. The closed-cell structure resists moisture absorption, which helps prevent pipe sweating and the related risk of drip damage or mold growth on surrounding surfaces.

Key Features

• 7/8-inch inner diameter fits standard 7/8-inch OD copper tubing used in HVAC refrigerant circuits
• 1/2-inch wall thickness provides R-3.2 thermal resistance for energy code compliance on cold piping
• Closed-cell elastomeric foam construction resists moisture vapor transmission and condensation
• Flexible material allows installation on straight runs and moderate bends without cutting separate segments
• Suitable for both exposed mechanical room applications and concealed in-wall or in-ceiling installations

Compatibility

Designed as an OEM-style replacement and new-installation insulation sleeve for mechanical piping systems requiring a 7/8-inch inner diameter closed-cell elastomeric insulation product.

Installation Notes

This insulation is typically installed by licensed HVAC technicians or plumbers working on refrigerant or hydronic piping systems. Shut down the associated mechanical system and allow piping to return to ambient temperature before installing to ensure proper adhesion if contact cement is used to seal seams and butt joints. Follow local mechanical codes and manufacturer slit-and-seal guidelines when fitting insulation over existing piping runs. Do not compress the wall thickness during installation, as reducing wall thickness lowers effective R-value.

Technical Specifications

• Inner Diameter: 7/8 inches
• Wall Thickness: 1/2 inch
• Thermal Resistance: R-3.2

Standard Information

• Brand: AEROFLEX
• Manufacturer Part Number: A7812