Page 193 - ZSi-Foster Product Catalog

Cush-A-Therm ®

Airtight Crush-Resistant Insulation Clamp
Introduction

Channel

Channel Nuts & Hardware
NOTE: Complete assembly supplied with gold
electro-galvanized channel clamp and hardware

Cush-A-Therm Clamp is a perfect crush-resistant airtight seal for • • Temperature range: -70°F to +250°F (-56.7°C to +121°C)
chilled refrigeration or mechanical pipe lines that require continuous • • Flammability is Self-Extinguishing as tested under ASTM D 635
insulation. • • Maintains thermal barrier protection General Fittings
The rigid foam construction has an insulating tape inner lining which • • Tested in Conformance with ASTM E84 (UL 723, NFPA 255)
supports tube and absorbs vibration of operating pipe lines. having results of 0 FSI (Flame Spread Index) and 50 SDI
The outer cover consists of a special rubber coating which seals the (Smoke Developed Index) Brackets
cushion after installation in order to prevent condensation. • • Prevents condensation
It's strong closed-cell structure is ideal for liquid cooling lines to • • Properly supports pipe and tube
prevent condensation, save energy, and maintain the vapor barrier. • • Absorbs vibration
• • Polyurethane foam laminated with a rubber lining Beam Clamps

Cush-A-Therm ASHRAE Insulation Recommendations

Insulation Glued to Cush-A-Therm Cush-A-Therm is designed to meet the ASHRAE recommendations for insulation Pipe & Conduit Supports
which Avoids Air Space and Loss of Insulation for mechanical systems which indicate that insulated pipe hangers should provide
Pipe Insulation the following:
1. Complete sealing of pipe against water vapor ingress
2. No energy transfer of cold to supporting clamp to prevent condensation of
water and possible growth of mold. If the support encasing the insulation is in Electrical Fittings
contact with the pipe or tube and supported by a metallic clamp, which is not
protected by insulation, below ambient temperatures will be transferred to the
clamp causing energy transfer and condensation.
3. No interruption of the insulation envelope
4. Limit or avoid compression at support location Spring Steel
Pipe Insulation Pipe Insulation
Cush-A-Therm ASHRAE Section 23.13-23.14 further states “when the goal is avoiding compression of
low-compressive-strength insulation products, it is recommended to use high-strength
Only Insulation Contacts Pipe insulation inserts made of a product that offers the desired compressive strength
No Thermal Conductor and other necessary performance properties. Other higher-strength materials that Concrete
are not thermal insulation material and interrupt the insulation envelope, or do not Inserts
allow complete sealing of an insulation system against water vapor ingress are not
recommended for supporting insulated piping on pipe hangers. Note that wood blocks
have poor thermal conductivity and are not recommended, especially for cold pipe
systems.”
Insulated cold piping should receive special attention when exposed to ambient or Rooftop Supports
unconditioned air. The Cush-A-Therm is a product that seals out air, and insulates
the pipe/tube from the supporting clamp, and is therefore in compliance with the 2013
ASHRAE insulation recommendations.
Technical Data

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