Model HT (High Temperature) Non-metalalic Casing Spacers

Description of Model HT Casing Spacers

A unique formulation of polymers is used in the manufacture of the Hi-Temp isolators/spacers giving them the ability to be used for applications that may reach 280-degrees F. (138°). In addition to heat resistance, they also offer excellent insulation, high abrasion resistance and low coefficient of friction for a wide variety of double containment carrier/casing pipe applications. Light in weight and easy to handle during installation, Model HT casing isolators also feature ribbed inner surface that prevents slippage and guards against carrier pipe coating damage. The outer surface may include any one of several molded runners to accommodate 2" (50.8mm) x 4" (101.6mm) or larger carrier/casing differentials.
One piece solid molded segments provide for maximum load bearing. Hardware includes cadmium plated steel studs, nuts and washers. A screwdriver is the only tool needed for installation.

Model HT Casing Isolators are designed primarily for smaller diameter steel or polyethylene carrier pipes (ANSI O.D. pipe without a bell or mechanical joint). We do not recommend that they be used on any carrier pipe over 12" in diameter or for installations over 300 feet long without consulting with PSI. PE Isolators should not be used on concrete carrier pipe.

Typical Application for Model HT Casing Spacers

Recommended Maximum Spacing
Distance between all model HT Isolators/Spacers should not exceed 5-feet (1.5-meters) to 8-feet (2.4-meters) center-to-center. An isolator/Spacer should be placed within 2-feet (0.6-meters) on each side of a coupling or joint and within 1-foot (0.3-meters) of each end of the casing.

Benefits/Features of Model HT Casing Spacers

• Band width = 5-inches (127mm)
• May be used for high-temperature applications
• Unique formulation of polymers allows isolator/spacer to be used in applications where temperatures may reach 280-degrees F. (138-degrees C.)
• Ribbed inner surface prevents slippage and guards against coating damage.

• Lightweight for ease of handling and installation.
• Screwdriver only needed for installation.
• Model available with non-metallic hardware.
• Eliminates the need for blown sand or pea gravel

Material Specifications for Model HT Casing Spacers

Liner
None

Runners
3/4" (19mm) through 12" (305mm) = 2-piece with molded-in runners.

Hardware
Metallic - Bolts and Square Nuts = Plated Steel
Non-metallic - Bolts and Nuts = High Temp Plastic

NOTE:
Model HT Casing Isolators are designed primarily for smaller diameter steel or polyethylene carrier pipes (ANSI O.D. pipe without a bell or mechanical joint). We do not recommend that they be used on any carrier pipe over 24" in diameter or for installations over 300 feet long without consulting with PSI. HT Isolators should not be used on concrete carrier pipe.

Warranty

All products are warranted against failure caused by manufacturing defects for a period of one year. Any product found to be so defective and returned within one year from date of shipment will be replaced without charge. The above warranty is made in lieu of, and we disclaim, any and all other warranties,

expressed or implied, including the warranties of merchantability and fitness for a particular purpose, and buyer agrees to accept the products without any such warranties. We hereby disclaim any obligation or liability for consequential damages, labor costs or any other claims or liabilities of any kind whatsoever.

Typical Specifications for Model HT Casing Spacers

Casing isolators/spacers shall be PSI Model HT molded from high density polyethylene plastic in two segments. Each spacer segment shall be a solid, non-welded molded piece designed for accommodating specific size pipe O.D.'s
Each casing spacer shall be manufactured at a facility that has a Registered ISO 9001:2000 Quality Management System. Copy of current ISO 9001:2000 registration shall be provided with material submittal.
Approved manufacturer: Pipeline Seal and Insulator, Inc.
For 3/4" (19mm) through 12" (305mm) nominal diameter carrier pipe use 2-piece model HT.

End Seal Specification
After insertion of the carrier pipe in the casing, the ends of the casing shall be closed by installing a PSI Model "C", Model "S" or Model "FW" casing end seal as manufactured by Pipeline Seal and Insulator, Inc., Houston, TX.

Link-Seal® End Seal Specification
(Carrier Pipe Must Centered Within Casing)
After insertion of the carrier pipe in the casing, the ends of the casing shall be closed by installing the Link-Seal® end seals and a 1/8" thick synthetic rubber end seal equal to the PSI Model "C" end seal. Both as manufactured by Pipeline Seal and Insulator, Inc., Houston, TX.
Disclaimer
The foregoing performance data is intended as guideline material only and is based on assumptions of general and reasonable use. Performance suitability for any specific application should be determined by the user.