Watertight modular seals

Watertight Sealing for pipes through concrete walls

Partner with the best - Westatlantic Tech Corp - Seal solutions.

Modular seals WA-Modular Links provide watertight solutions when pipe passage is required into buildings and waterworks structures.

New-Tech WA-pipe seals have a special torque window to inform the installer when optimum sealing torque is attained. EDPM, NBR or Silicone elastomer are available. Standard bolting hardware 316L stainless.

Compression plates are a monolithic design where tightening nuts are embedded in the plate - no loss parts.

WA-large diameter pipe seals fit all American and Metric pipe sizes. Sealing elastomers for larger pipe diameters is a specialty.


Watertight : up to 5 bar (72 psi) pressure / -40 F to + 176 F, (-40 ° C to + 80 ° C) operational range.

By tightening the bolts, the elastomer is compressed and expands and confirmed by the torque window.

Embedded hardware nuts-no lost parts during installation.

Optimum torque indicators: for watertight conditions the bolt head window displays a yellow window indicator.










See seal sizing charts

Watertight solutions for pipe penetrations in treatment plants, sewage storage tunnels, manhole hole connector pipes, under ground tunnels, foundation structures.

No leaks.

  • Optimum tightness confirmation at a glance.

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

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

Modular seal sizing Chart

Modular seal links spec

Modular Seal Links Install Guide


Additional Infomation:

Modular Seal Cut Sheets Introduction

Most effective modular seals

Install guide Picture install guide

Modular Pipe Seals Manual

Modular Seal links French-Canada install manual

Modular Seal links WA units

Leaking link seals "Repair"

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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 elastomer 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 re-tightening.

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 Water-stop 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.




Wall Penetration Seals: Westatlantic Tech Corp. 902 455 4455


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