Century-Line™ Pipe Penetration Sleeves


Century-Line™ Pipe Penetration Sleeves are used to create circular sleeved holes in concrete poured barriers including walls, floors, ceilings, structural supports and tank footings.

Molded from non-conductive, high-impact resistant HDPE, Century-Line™ sleeves are lightweight and easily installed by one construction worker. In the event of a field or engineering change, sleeves may be cut shorter at the job site using ordinary hand tools. Century-Line™ sleeves are easy to stock and far less expensive to ship than steel sleeves.


Note: This product is moving to Garlock.com.

In the coming months this product will be supported by our sister company, Garlock. Additional details and links coming soon.

Questions? Click here to contact Garlock Customer Service.


1/8 the weight of steel

Century-Line™ sleeves are light enough for one worker to install without a crane, hoist or helper, reducing installation time and costs. Century-Line™ sleeves are easy to stock and far less expensive to ship than steel sleeves.

Resists water migration

The 2” (50.8 mm) water stop collar not only anchors the sleeve in position but creates a path against the migration of water around the outside of the sleeve.

Adjusts to Wall Thickness

Century-Line™ sleeves unique, hollow water stop collar works like an expansion joint, adjusting (up to 1/2”) to the thickness of wall. This design creates a dynamic force against the form.

Nailer end caps position sleeve precisely in form

Specially designed end caps provide an ideal method for attaching Century-Line™ sleeves to the concrete forms. The end caps assure that the sleeve holds its circular configuration during the pour. In addition to keeping out wet concrete, they also prevent dirt from entering the sleeve during backfill operations or the interim construction period.

Tough high density polyethylene (HDPE) construction

High-impact resistant HDPE also provides excellent resistance to acids, alkalis and other organic solvents. Ideal for cathodic protection systems, these non-conductive sleeves will not rust, corrode or degrade. Low-temperature properties are such that they may be installed under any weather conditions suitable for pouring concrete. High temperature application limit is 150º F (66º C). The sleeve is molded with a texture on the outside surface to assure a better bond than most plastic to concrete interfaces.

Used for shotcrete wall applications

For shotcrete applications, Century-Line™ sleeves are easily positioned to wall form with threaded rod, and the end caps protect the sleeve penetration while the wall is formed.  

Nesting of Sleeves

Allow for a 2” (50.8 mm) minimum clearance between wall sleeves/ water-stop collars for concrete pour.


  • Standard sleeves are 16” (406 mm) in length. Sleeves may be cut shorter at the job site with ordinary hand tools.
  • Longer length models may also be quickly fabricated as a custom ordered item.
  • 16 sizes – 2” (50.8 mm) to 25” (635 mm) in diameter (Local stock, drop ship overnight).


  • Shotcrete