Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors

Pipe Penetration Seals: Understanding & Proper Installation

Fluid Sealing
Proco Understanding & Proper Installation of Pipe Penetration Seals

Pipe Penetration Seals: Understanding & Proper Installation

What Your Operation Needs When It Comes To Gases and Watertight Seals

When designing a pumping system—or refurbishing, reconfiguring, or expanding one—users may be faced with sending a pipe through a tank, wall, floor, or vault. Sealing a pipe-through so that no substance—gas or liquid—leaks is of the utmost concern. Not only could the failure to create a gas or watertight seal create loss of efficiency or product, but it could result in a safety issue for personnel.

The use of a pipe penetration seal is a reliable tool in such cases. A pipe penetration seal should be selected for the specifics of the application, considering available materials, temperature ranges, sizes, and the environment in which it will be installed.

A pipe penetration seal forms a mechanical rubber seal in the annular space between the pipe and the wall opening where the pipe penetrates the wall. It also forms a seal between inner pipe and outer pipe sleeves or pipeline casings. The seal should be able to achieve efficiency and work in a conjunction with any electrical conduit, concrete, cast iron, steel, copper or PVC/CPVC (polyvinyl chloride/chlorinated polyvinyl chloride) pipes passing through walls, floors, tanks, pipeline casings and vaults.

Proco Understanding & Proper Installation of Pipe Penetration SealsMaterial Considerations

The Pen-Seal from Proco Products has been tested and will withstand a hydrostatic seal up to 20 pounds per square inch gauge (psig) or 40 feet of head pressure and temperatures up to 250 F (121 C) and -40 F (4 C). The Pen-Seal uses glass-reinforced plastic, and the hardware is made of steel zinc dichromate. To ensure corrosion resistance, 316 stainless steel is also available. Nitrile can also be used if the pipe penetration seal will come in contact with hydrocarbons, oil, gas, or miscellaneous solvents.

EPDM—or ethylene propylene diene monomer rubber—is the standard elastomer material for the Pen-Seal. This material is suitable for most water applications. The above ground and direct burial provides electrical insulation where cathodic protection is required. It is used to control corrosion of a metal surface by making it the cathode—the negatively charged electrode by which electrons enter an electrical device—of an electromechanical cell.

The alternatives to the use of pipe penetration seals—expandable foams and caulks—not only have 10 to 14 days of curing time, but they have to be reapplied to maintain the seal. A pipe penetration seal is a more permanent solution, saving time and cost on maintenance.

In the case of the Pen-Seal, it is resistant to sunlight and ozone and absorbs vibration, shocks, and sound waves. Insulating inner pipe from other structures including out pipe sleeves, pipeline casings, walls and tanks is also a feature. In additional, the nuts and bolts are plated with an anti-corrosive coating. Stainless steel nuts and bolts are also available.

Note: When a Pen-Seal is being used to seal a gap in electrical conduit lines, it acts as an incubator.

Understanding & Proper Installation of Pipe Penetration SealsProper Installation Tips

  1. Center the pipe in the sleeve or core opening—support the pipe at both ends. Warning: The Pen-Seal isn’t a support and pipe shouldn’t be able to be adjusted during seal installation.
  2. Wrap the belt over the pipe and make sure the bolt heads are facing the installer.
  3. Connect the ends by passing the bolt through the seal holes, thread the bolt into the last pressure plate and tighten the bolt head until snug.
  4. For larger sizes, insert the assembly at a 6 o’clock position and push the remaining seal on both sides as you move towards 12 o’clock. Use a light solution of soapy water as a lubricant as needed.
  5. Using a rachet wrench, tighten the bolt moving around the belt in a clockwise direction, starting at 12 o’clock. Tighten each bolt four turns at a time max until a slight bulge between each pressure plate is visible. This will need to be repeated at least three times around the seal.

Note: Make sure pipe and opening are clean and free of irregularities.

Warning: Use of high- speed power tools can lead to over torqueing.

Understanding & Proper Installation of Pipe Penetration Seals

Related Articles

Related Whitepapers

Protecting VFD-Driven Motors In Steelmaking

VFDs Improve Process Control and Reduce Energy Costs According to the American Iron and Steel Institute, energy costs account for 20% of the cost of…

Concrete steps for an energy efficient future with the top industrial efficiency option

Should energy efficiency policy consist of minimum efficiency performance levels that all suppliers need to reach? Or should the industry in addition strive for the…

The future is energy-efficient, the future is data-driven

By 2050, global energy usage is projected to increase by almost 50% compared to 2020. This includes an increase in energy consumption in the industrial…

Protecting VFD-Driven Motors In Oil Drilling and Pipelines Applications

The Need for Exceptional Reliability Used for everything from gasoline for vehicles, to power for lights and appliances, to key ingredients in plastics and other…


Leave a Reply

Your email address will not be published. Required fields are marked *