INSUL-TEK®






Preinsulated Piping Systems
Selection Guide

INSUL-TEK® offers a complete line of insulated piping products suited to handle almost any application. Whether it be a cryogenic piping system operating at-350° F or a district heating system operating at 500° F, we can furnish you with a completely engineered and prefabricated INSUL-TEK® piping system.
This quick and easy selection guide is intended to assist our customers in choosing the right product for their specific application. The product specifications are available in PDF format for easy reading and downloading. Please do not hesitate to contact your local area representative or our engineering staff for additional information.

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Manufacturers' Trade Name Cross-Reference Sheet

Product Application Guide


INSUL-TEK® 250 Steel

Factory preinsulated steel pipe intended for use on systems ranging in temperature from
-3500 F to 2500 F.

The specified type of steel pipe is insulated with the most energy efficient insulation available today, isocyanate polyurethane foam.

The outer protective casing is generally Polyvinyl Chloride (PVC), High Density Polyethylene (HDPE), or Fiberglass Reinforced Plastic (FRP). However, other optional casings are available, including coal-tar urethane-coated steel and spiral-wound lockseam galvanized steel and aluminum.

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Product Specifications


INSUL-TEK® 250 FRP

Fiberglass Reinforced Plastic (FRP) pipe insulated with polyurethane foam intended for use on systems up to 250° F.

We can insulate any type of FRP pipe, including Ameron Bonstrand, A.O. Smith, and Fibercast, depending on the application and the customer's requirements.

The outer protective casing is generally PVC, HDPE, or FRP, however, other optional casings are available. The system is normally utilized on condensate return lines, chilled water lines, process piping, and hot water systems.

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Product Specifications


INSUL-TEK® 250 Copper

Type "K" or "L" copper, factory insulated with isocyanate polyurethane foam. This system is intended for use on systems below and above ground ranging in temperatures from -350° F to 250° F.

The outer protective casing is normally PVC or HDPE; however, other optional casings are available. Typical applications for this type of system include liquid nitrogen piping, C02 piping, chilled water, hot water, and process piping.

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INSUL-TEK® 250 PVC

A Polyvinyl Chloride (PVC) pipe factory insulated with polyurethane foam.

The outer protective casings are normally PVC and HDPE; however, optional casings are available, including spiral-wound lockseam galvanized steel and aluminum casings for above ground use.

This system is commonly utilized on chilled water lines, brine lines, and sewage and process piping.

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Product Specifications


INSUL-TEK® Ductile Iron

Ductile Iron pipe of the specified class and type is factory insulated with the most thermally efficient polyurethane foam insulation.

The outer protective casings for buried service are PVC, HDPE, or FRP. Spiral-wound lockseam galvanized steel and aluminum casings are commonly utilized on above ground installations, including bridge crossings.

This system is ideal for use on chilled water lines and potable water lines.

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Product Specifications


INSUL-TEK® 400 HT Composite System

Preinsulated steel piping for use on below and above ground systems with operating temperatures up to 400° F. This system utilizes the most energy efficient high temperature composite insulation consisting of hi-temp cellular glass/polyurethane foam or calcium silicate/polyurethane foam.

The standard outer protective casings are HDPE, FRP, or spiral-weld 10 gauge steel with a hybrid Urethane coating or a Fusion Bonded Epoxy Coating.

This system arrives on the job site as a totally prefabricated, pre-engineered turnkey system.

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INSUL-TEK® FRP Clad HT Steel Conduit

A dryable, drainable, air-testable system intended for use on high temperature applications with service temperatures over 250° F. The INSUL-TEK® HT Steel Conduit system features a 10 gauge spiral welded steel conduit casing with 100 mils of FRP Cladding filament wound directly onto the steel conduit.

The carrier pipe can be of any grade or type commercially available. Mineral wool or calcium silicate insulation is generally utilized in this system. Foamglas is also available.

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INSUL-TEK® HT Steel Conduit

A dryable, drainable, air-testable system intended for use on high temperature applications with service temperatures over 400° F. The INSUL-TEK® HT Steel Conduit system features a 10 gauge spiral welded steel conduit casing with a 30 mil thick coating of durable corrosion-resistant hybrid urethane.

The carrier pipe can be of any grade or type commercially available. Mineral wool or calcium silicate insulation is generally utilized in this system.

Options available with the INSUL-TEK® HT Steel Conduit System include multiple pipe systems, cathodic protection systems, leak detection systems, and heat trace systems.

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Enviro-Tek Containment Systems

Preinsulated Piping Systems, Inc. offers a wide range of prefabricated and pre-engineered ENVIRO-TEK® containment piping systems. Each system is custom designed and engineered to meet the specific requirements of the customer.

The carrier pipe can be of any grade and type commercially available, including, but not limited to: PVC, CPVC, fiberglass, steel, stainless steel, copper, polypropylene, and HDPE.

The standard containment casings are PVC, FRP, and coal-tar urethane-coated steel; however, other optional casings are available, including HDPE, epoxy-coated steel, and stainless steel. We offer multiple pipe systems, insulated systems, heat traced systems, and systems with leak detection.

Please consult your local area representative or our engineering staff for additional assistance in designing your containment system.

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Product Specifications