Casing split pipe

Split Casings - Existing Pipe Protection
Encasement - Existing Pipes - Conduit - Fiber Cables - Power Cables

HEX-Model for pipe diameters up to 14"

WA-HEX model split casings are two separate sections that bolt together and form an encapsulating protective casing around existing pipes.

Applications: for pipes under railway, roadway or increasing lengths and other projects requiring encasement of existing pipes.

WA - HEX split casing - bolt closed - butt flanges bolted end to end.


WA - split casing bolt closed Hexagonal shape.


Hexagonal split casings and cylindrical split casings provide encasement protection for existing pipelines.

WA split casings are are manufactured protection casing - not split pipe.

Encasement protection for American and International pipe sizes.


HEX split casing cut sheet

Casing spacers (positioners) are supplied with the split casing. Casing spacers hold the carrier pipe off the bottom of the split casing.

Reinforcement and end bolting flanges add extra strength to the encasement.

Materials: Powder coated corrosion protected steel - Stainless 304L/316L.

Encasement protection for pipes, conduit, power cables and fiber-optic lines. Pipelines remain in service during the install process.

Split casings models fit all American and International pipe sizes.

Large pipe HEX split casing are shipped with steel or HDPE spacers.

See non-metallic casing spacers

HEX Split casing for large diameter carrier pipes

- Westatlantic HEX split under water cable protection project

Email or call Westatlantic 1-902 455-4455

Split casing may be installed by waterworks contractors, specialized equipment is not required.

Other Split Casing Applications:

- Tank farm protection for existing gas and oil pipes through earth containment berms or bund walls.

- Protection for existing pipelines under rail tracks, roads and other crossover projects.

- Extra protect for existing pipelines under new building foot prints.

- Protect communication cables and power supply cables.

- Provide utility corridors for service entries.

Rib former collars on the split casing provide stability, and strength. Split Casing ends may be closed or open.

Split casing Material: Powder coated steel, galvanized steel, corrosion coated steel, steel.

Flange Gaskets: EDPM for water applications or NBR elastomer for oil and gas applications.

Casing Spacer "positioners" support the pipe in the casing.

WA-Hex (Hexagonal split casing) ships ready to install with all necessary material.


When installing only expose an existing carrier pipe so that non-excavated earth supports the pipe. Place split casing lengths under that section before moving on.

Basic structures may be modified to accommodate existing field conditions.

Email or call Westatlantic1-902 455-4455


Download Cut Sheet

Sample Sketch

Split Casing Round - Bolt joined- Existing pipes

For pipe diameters greater than 14"

WA.CYL-BCSC split pipe casing.


Pipeline protection for existing pipes.

Bolt closed split casings encapsulate and protect existing pipelines. Westatlantic split casings are manufactured to fit the existing pipe outside diameter. They are fabricated in specific section length for flange bolt joining to make up the total length requirement.




Split casing protects existing pipes, power cables and fiber optic lines. The split sections wrap around the pipe and bolt together to form total encasement of the existing pipeline.

Gaskets fit between the axial and butt end flange joints.

Westatlantic casing spaces (POSITIONERS) hold the carrier pipes off the bottom of the casing. End seals are supplied if required.

End bolting and midpoint flanges add strength and stability to the sections.


Guide to Installing split casings.

- Excavate around existing pipes down to the pipe bedding, on both sides of the pipeline.
- The pipe support bedding should be left undisturbed until ready to install a casing spacer around the pipe.
- Remove a portion of support bedding for the casing spacer and clamp it to the pipe.
- Several bottom half sections may be placed and bolted together.
- For temporary support of the split casing, sand bags or grout may be used.
- Check with the engineer for minimum supports required between the exposed existing pipe.
- Fasten the top split section to the bottom half and bolt the sections together.
- Grout fill any gap in the original bedding to support the split casing.
- Grout support may extend to about half way up the split casing.

- Note** the idea here is the new grout bedding will support the split casing, casing spacers support the carrier pipe.

- Place the bottom lengths first before top sections.
- Field conditions may require a different placement sequence.
- Exposed carrier pipe should always be supported.

Email or call Westatlantic 1-902 455-4455


Split casing bolt closed Hex model

Email or call Westatlantic 1-902 455-4455

SEE: Casing spacers Non-Metallic for bolted split casings.

SEE: Split Casing round cylindrical form:

Split casing weld closing encasement.

Split casing pipe protection round casing



Split Casing for existing pipeline - Weld closing - Round encasement




Casing spacers with rollers hold the carrier pipe off the bottom of the split casing.

Existing pipelines remain in service during placement of the split casing.

Placement of Split casings

Weld the bottom lengths in place first for several lengths, followed by the top sections. Field conditions may require a different sequence and is a contractor choice.

Normally only expose an existing carrier pipe length so that non-excavated earth supports the pipe. Place split casing lengths under that section length before moving on. Field contractors may modify method of exposing existing carrier pipes to meet other requirements.


See Non-Metallic casing spacers for bolted split casings.

Split Casing Applications:

Gas Line Industry, Telecommunication Industry, Reusable Cement Forms, Column Covers, Airport Runways, Bridge Construction, Road Construction, Railroad Construction.

Split casing pipe protection round casing

Email or call Westatlantic 1-902 455-4455


Split Casing End Sealing

Casing End Seals are available in modular link chain, end seal boots, disc seal models and spit end seal boot models.


WA-GP-UM disc eccentric seals: do not require the carrier pipe to be centered in the casing. Split models of WA-GP-UM eccentric end seals are available if the carrier pipe is lower in the split casing

Carrier pipes below or above the center position may be sealed. Large annular spaces may be sealed with GP-SD disc seals


Casing caser boot seal debris prodectors are also available.

Eccentric pipe seals conform to the carrier pipes exist position. The opening in the GP-UM depends on the height of the casing spacer leg being used.

WA.GP-UM eccentric disk-seals are used for non-centered pipe through the casing..

Download cut sheet

Email or call Westatlantic 1-902 455-4455

Oval casing pipe end seals - watertight



Carrier pipes or casings not round may be sealed with a WA-GP-OVAL end seal.

Out of round end seals are custom fabricated to fit the out of round pipe or casing condition.

Materials: EDPM or NBR elastomer with stainless steel compression plates and hardware.



Measures required for out of round pipe or casing pipe:



Download a measure fill-in sheet:

- Record measures from the carrier pipe OD to the casing Pipe ID - for each point in a 24 hour clock.

- Measures should be perpendicular to the carries pipe.

- Run a straight line from the 6 o'clock to 12 o'clock.


Email or call Westatlantic 1-902 455-4455




For boot protection end-seals see web page:

End seal boots are also available for debris protection and sealing for non-pressing water.



Tel 1-902 455 4455







split casing, existing pipes, steel casing, bolt closed, weld closing, existing pipes, split ducts, half sole, Cooper E80, loading, gas mains, oil pipelines, water mains, sewer lines, pipe lining, railway, roads, highway, enclosure, USA: Illinois, IL, North Dakota, ND, Iowa, IA, Arizona, Ohio, OH, New York, NY, Kentucky, KC, Texas, TX, California, CA, Louisiana, LA, Florida, FL. availability; Canada: Alberta, AB; Edmonton, Calgary. Ontario, ON; Toronto, Quebec, British Colombia, BC; Vancouver, Saskatchewan, SK; Saskatoon, Manitoba MB; Winnipeg, QC; Montreal, New Brunswick, NB, Nova Scotia, Newfoundland, NL.