Caleffi 112003 Insulation Shell for 132662A

A pre-formed insulation shell for the 1" QuickSetter™ balancing valve, for hot- and cold-water hydronic systems.

In hydronic heating and cooling systems, proper insulation around valves and fittings can help improve thermal management and reduce unwanted heat transfer. The Caleffi 112003 Insulation Shell is a Series 112 insulation accessory associated with Caleffi QuickSetter™ balancing valves and is specifically identified in Caleffi's earlier North American catalogs as fitting the 132662A 1-inch NPT QuickSetter™ balancing valve.

For contractors, HVAC professionals, engineers, and facility maintenance teams, the 112003 provides a purpose-designed insulation solution around the valve and its connected fittings.

What Is the Caleffi 112003?

The Caleffi 112003 is a Series 112 QuickSetter™ insulation sleeve/shell designed for the applicable 1-inch QuickSetter balancing-valve configuration. Older Caleffi North American catalogs explicitly describe it as an "Insulation sleeve fits 132662A." Those catalogs list the component at approximately 0.1 lb.

Caleffi's current Series 112 technical information specifies 10 mm insulation thickness and a 0–100°C medium temperature range for this insulation family.

Technical Specifications

Designed Around the Caleffi 132662A QuickSetter™

The Caleffi 132662A is a 1-inch NPT female QuickSetter™ adjustable static balancing valve with an integral flow meter. Caleffi specifies a working flow range of 3.0–10.0 GPM, a maximum operating pressure of 150 psi, and a medium temperature range of 14–230°F.

The integral flow meter allows installers to measure and adjust circuit flow directly at the valve, making the 132 series useful for balancing hydronic heating and cooling systems. Caleffi states that proper hydronic balancing helps systems operate according to design specifications while supporting thermal comfort and lower energy consumption.

Why Insulation Matters in Hydronic Systems

Balancing valves and associated piping can represent areas where heat can transfer between the system and surrounding environment. Proper insulation can help manage this heat transfer.

• Hot-water applications: insulation can help reduce unwanted heat loss from the valve assembly.
• Cold-water and chilled-water applications: insulation can help reduce the potential for surface condensation when system temperatures are below the surrounding air's dew point.

Caleffi's current QuickSetter documentation states that the 132 series is furnished with a hot pre-formed insulation shell to optimize thermal performance for both hot- and cold-water systems.

Key Features of the Caleffi 112003

Made for the 1" QuickSetter™

The 112003 is designed for the 1-inch QuickSetter™ application and was historically specified by Caleffi for the 132662A.

10 mm Closed-Cell PE-X

The pre-formed shell uses 10 mm closed-cell expanded PE-X insulation, rated for a 0–100°C medium temperature range.

Heating and Cooling Use

The shell is intended for hydronic heating and cooling applications, helping limit heat loss on hot circuits and surface condensation on chilled circuits.

Lightweight, Pre-Formed Design

Older Caleffi catalogs list the shell at approximately 0.1 lb, and its pre-formed shape fits around the valve rather than being cut and wrapped on site.

Insulation Material and Thermal Characteristics

Caleffi's current North American QuickSetter submittal data identifies the insulation used with the 132 series as closed-cell expanded PE-X with a 10 mm thickness, and lists the following properties:

112003 and 132662A Compatibility

Caleffi's 2016 North American list-price catalog states: 112003 — Insulation sleeve fits 132662A. The same relationship appears in Caleffi's 2017 catalog and older North American product literature.

Caleffi's current U.S. Series 112 webpage now presents 112003 under the 1-inch QuickSetter family with the "Use" reference 112641, rather than directly displaying 132662A on that page. This appears to reflect a change in Caleffi's product-family/catalog presentation over time.

For customers ordering against an existing 132662A, the older Caleffi North American documentation provides the direct reference. For new installations or installation-critical applications, check the applicable current Caleffi documentation before ordering.

Typical Applications

Commercial HVAC Systems

The insulation can be used with QuickSetter balancing-valve installations in commercial heating and cooling systems where thermal management around the valve is important.

Hydronic Heating

For hot-water heating systems, insulation can help minimize heat transfer from the valve to the surrounding mechanical space.

Chilled-Water Systems

In chilled-water applications, properly installed insulation can help control surface condensation around low-temperature valve assemblies.

Fan-Coil and Terminal-Unit Systems

Caleffi identifies the 132 series for applications where heating and cooling transfer fluid is supplied to fan coils and terminal units or wherever flow balancing is required.

Facility Maintenance and Retrofit Projects

The 112003 can also be relevant when maintaining or upgrading existing QuickSetter installations where the appropriate insulation accessory is needed.

Installation Considerations

• Balancing valve model and size
• 1-inch connection/application requirements
• Correct Caleffi insulation part number
• Accessibility of the flow meter and balancing controls
• Continuity of surrounding pipe insulation
• System operating temperature and ambient humidity

Insulation performance also depends on the overall installation. Even a correctly selected valve shell cannot prevent condensation if surrounding piping, fittings, joints, or insulation transitions are left exposed under unsuitable temperature and humidity conditions.

Why Use the Caleffi Insulation Solution?

Using an insulation accessory designed within the Caleffi QuickSetter product family provides a more integrated approach than improvising insulation around the balancing valve. Caleffi's 132-series documentation specifically incorporates pre-formed insulation as part of the valve's thermal-performance approach.

For contractors and facility teams working with Caleffi balancing valves, identifying the correct insulation component can simplify procurement and help maintain a consistent installation.

Why Buy from KPaul Industrial?

KPaul Industrial supplies HVAC, hydronic and industrial components for contractors, commercial facilities, government customers and maintenance teams. When sourcing the Caleffi 112003, customers can benefit from:

• Competitive pricing on genuine Caleffi products
• Assistance matching insulation shells to QuickSetter™ valves
• Support with hydronic HVAC accessory sourcing
• Support for commercial, government and residential projects
• Experienced industrial customer service

Contact KPaul Industrial for Caleffi 112003 pricing, availability and sourcing assistance.

Final Thoughts

The Caleffi 112003 is a Series 112 pre-formed insulation shell for the 1-inch QuickSetter™ balancing valve, historically specified for the 132662A. With 10 mm closed-cell PE-X and a 32–212°F working range, it helps manage heat loss on hot-water circuits and surface condensation on chilled-water circuits when the surrounding insulation is installed correctly.

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