Applications:    Low Temperature Hot Water, Condensate, Dual-Temperature, Chilled Water Service
Pipe size:   1 1/2”-24” diameter, 20’ or 40’ nominal lengths
Temperature range:   35ºF to 250ºF
Max. operating pressure:   150psi
Carrier:   Steel
Insulation:   Polyurethane foam
Casing:   Heavy wall Polyvinyl Chloride (PVC, PIP80) or High Density Polyethylene (HDPE)


  • Schedule 40/80 or Standard/Extra Heavy Weight carrier
  • Standard wall Polyvinyl Chloride (PVC, PIP22) casing
  • Fiberglass Reinforced Plastic (FRP) casing

Weld-Tite is a steel piping system for condensate, low temperature hot water, or chilled water service.

Weld-Tite is an energy efficient piping system. The standard carrier pipe is Schedule 40 A53 steel, other grades of steel are available if specified. Insulation is a thermally efficient polyurethane foam with a ‘K’ factor of 0.16 at 70ºF. The heavy wall PVC or HDPE casing and heat resistant end seals prevent ground water infiltration.

Weld-Tite may be supplied with pre-insulated fittings. Pre-insulated fittings are produced with the same carrier, insulation, casing, and rubber end seals as the pre-insulated straight sections. Fittings may be uninsulated using welded steel left bare or insulated in the field with insulation kits if so specified.

Weld-Tite® Joint

The Weld-Tite joint is welded. Pipe joints shall be insulated using polyurethane shells, casing-tite (PVC or HDPE) sleeve and 30mil High Temperature tape.