Project Description

Pipe Penetration Seal

The Pipe Penetration Seal is designed to provide a gas and water-tight seal. Pipe Penetration Seals PTFE Lined are lined with Teflon for corrosive chemical applications. Pipe Penetration Seals have been designed to assist in achieving an efficient, low-cost mechanical seal between any electrical conduit, concrete, cast iron, steel, copper, or PVC/CPVC pipes passing through walls, floors, tanks, pipeline casings, and vaults.

The PEN-SEAL, while being used to seal the gap in electrical conduit lines, will also act as an insulator. The PEN-SEAL has been designed to provide a gas and watertight seal. Sizes are tested to withstand a hydrostatic seal up to 20 PSIG or 40 feet of head pressure, in addition, to withstand temperatures up to 250° F.

Standard elastomer material is EPDM, which is suitable for temperatures ranging from -40° F to 250° F. EPDM is ideal for most applications in water—above ground and direct burial—and will provide the electrical insulation where cathodic protection is required.

The silicone material is also available for higher temperature applications up to 400° F. Where the PEN-SEAL may come in contact with hydrocarbons, oil, gas, jet fuel, and various solvents, a nitrile material is available with temperatures ranging from -40° F to 210° F.

The PEN-SEAL utilizes glass-reinforced plastic for the pressure plates, and all hardware is manufactured from steel zinc dichromate. For corrosion resistance, 316 Stainless Steel hardware is also available. Various applications for the PEN-SEAL:

  • Wall Sleeves • Precast Concrete • Valve PitsFloor Sleeves • Mining • Offshore Oil Platforms
  • Interior Piping • Marine • Telecommunications
  • Noise Dampener • Water & Wastewater • Dual Containment Seal
  • Electrical Contractors • HVAC • Underground Steel Tanks
  • Coal Preparation Plants
  • Pulp & Paper
  • Power Generation


The PipeSeal provides cost-effective and specific protection pipes and passage through walls and floors for twenty psig. Wall sleeves are available. Selection starts with materials. Three sorts of rubber and two types of metal hardware are available.

EPDM is that the correct choice for many applications. However, an organic compound is best if the seal is also exposed to hydrocarbons. Likewise, chrome steel hardware may be used rather than galvanized hardware wherever corrosion could be an additional formidable problem. And polymer is the choice for high-temperature applications.

When selecting materials, you identify which model and the way several links are going to be needed. Help may be provided in filler or check our filler tables or our filler calculator spreadsheet.

Read more about rubber expansion joints.

Read more about metal expansion joints.

The sizing tables recommend hole sizes for numerous sorts and sizes of piping, in conjunction with the PipeSeal model and, therefore, the range of links required. The sizing program is best used once the opening scale used isn’t recommended within the sizing tables.