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Split Casing for existing pipelines

Casing Spacers

Casing spacers hold the existing pipes off the bottom of the casing leaving an annular space between the carrier pipe and split casing.

Pipeline protection

Split casings protect existing lines when an overburden is built over the pipeline. The pipelines remain in operation during installation of the split casing.

Split Casing Westatlantic Tech Corp.

Split casings are fabricated in two 180 degree sections. They wrap around the pipe and bolt closed. Split casing section lengths are flange bolt connected for total run lengths.

Split Casing - No welding

Split casing pipe bolt closed sections, eliminating weld requirements.

Custom fabricated to meet project requirements

Split casings are custom sized to fit the pipe size measures.

Pipeline remains in service

Installation can be done without shutting down the pipeline.

Protection

Split casing are used to protect various types of pipelines, including gas, oil, water, sewer, telecommunication lines and power cables.

Extends life of the pipeline

Split Casings protect a pipeline and keep them safe from damage. The risk of pipeline shutdowns are reduced.

Protection underground

Safeguards pipes, cables and communication lines from damage.

Westatlantic Custom Split Casing

Westatlantic WA-SC-R split casings are manufactured to encase the existing pipe outside diameter and total length requirements.

Split Casing fabrication

Split casing pipe is fabricated in specific section lengths and bolt joined for total length requirements.

Split Casing flange Gaskets

Gaskets are placed between the axial flange joints and butt joining flanges.

Split Casing Flange strengthening rings

End bolting flanges 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 casing spacers 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 other methods may be used. Check with the engineer for minimum supports required between the exposed pipeline. 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.

Summary:

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