Watertight modular seals

Modular Seal Links For Large Diameter Pipes

Pipes through concrete walls - Watertight connections

Modular seals WA-72 psi links provide waterproof protection for pipe passage through concrete walls. The strong grip seals fill the annular space between the pipe and wall opening.

New features included high grade rubber seal elastomer and 316L stainless nut and bolt hardware with tightness confirmation windows.








Bolt head optimum tightness windows, nuts embeded in the compression plates are new and effective features to assist the installer when placing the seals.

See modular seal sizing charts for pipe through core drill walls

Better watertight solutions for Water treatment plant pipe systems, sewage storage tunnels, under ground tunnels, foundation structures. No leaks.

Pipe seals for American and International diameter pipes.

  • Sealing for steel pipes, - Plastic, PVC, Ductile Iron pipes. Nuts are molded into pressure plate, no lost parts at the job site.
  • Optimum tightness confirmation at a glance.

Watertight solutions for pipe passage through concrete walls.


American and International Pipe Sizes

Large Pipe diameter series:

Optimized compression bolts - nuts are embedded in the pressure plates.

Tight up to 72 psi (5 bar) ( Lloyd register).

"Yellow window indicators" - "Safe" - "Watertight"

Seal elastomers may be EDPM or NBR, bolting hardware is 316L stainless steel.

Modular Seal Links WA-model

Modular Seal Cut Sheets Introduction

Most effective modular seals

Install guide quick reference cut sheet

Modular Seals Manual

Modular Seal French-Canada install manual

Modular Seal links WA units

Leak seals "Repair Assembly"

Westatlantic WA-GP modular seals are the latest and leading industry seals. We provide direct support and will be glad to assist you in all questions on the sealing of conduit, cables and pipes through concrete walls or steel walls.

 We will be happy to offer seal selection and wall opening guidance for any project.

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Modular Seals for large Pipe diameters 500 series Seal annular space 62 - 71.5mm / 48 inch (1220mm) diameter pipes

Modular Seals for large Pipe diameters 650 series Seal annular space 77mm-84mm / 78 inch (2000mm) diameter pipes

Modular Seals for large Pipe diameters 615 series Seal annular space 90-98 mm / 118 inch (3000mm)diameter pipes


Modular seals with NBR rubber links for oil and gas applications


Modular seals with oil and gas NBR rubber and 316L stainless steel nuts and bolts. NBR rubber elastomers provide endurance, isolation and safety for oil and gas steel pipes.

72 psi seals with corrosion protection 316L bolts and nuts. Modular seals with visual confirmation of tightness.

Large-diameter pipe sealing specialized for refinery and oil and gas handling facilities, adding safety and long life.
Visible torque indicators - insure security of the installation.

  • Integrated inspection window - accurate installation confirmation.
  • No waiting time between tightening.
  • No time consuming repeated retightening.

Pipe through wall component systems, consist of integrated assembly of wall sleeves - pipe sleeves - modular seals.

DISC SEALS for multi-pipe sealing WA-GP units: READ MORE


Seal more than one pipe through the same core. Watertight up to 36 psi of pressing water..

For pricing Contact Westatlantic Tech Corp. USA and Canada.


Compression Disc - pipe seals WA-GP units watertight connection for pipe through concrete walls. Disc seals only require a very low seating area. Ideal for watertight pipe connections through manhole walls.

pipe-seals-disk-compressionCompression disc seals for through wall conduit and pipes. Including a split versions, for pipes that are already in place.

Compression disc seal sizing is determined based on the number of pipes or conduit through the same opening. Hole size is the determining factor for the number of pipes that can be sealed using multiple disk compression seals.

Compression disc pipe sealing is used  for multiple pipes through the same opening, large annular spaces, holes or core holes too small for other types of pipe seals, when higher pressure seals are required. Eccentric compression disk seals are used for pipes that are off center through a pipe sleeve or drill core.

PUDDLE FLANGES: WA-PF units provide Waterstop pipe sealing. They are cast in a wall around a pipe through a foundation wall, floor slabs, pools, Ice rink concrete slabs. The units prevent water infiltration along a pipe through the concrete.






EDPM puddle flanges provide waterstops when a continuous pipe runs through the wall.





READ MORE on pipe to manhole connector boots

Pipe penetration, seal supplier: Westatlantic Tech Corp. 902 455 4455


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