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Field Record

PE Tee Weld Seam — Moulded Steel Tee Clamp Wrap

PE Tee Weld Seam — Moulded Steel Tee Clamp Wrap
The excavated tee — the leaking fusion weld is at the run-to-branch transition.

The tee on this PE line had been joined by fusion welding. Over time the weld at the run-to-branch transition began to seep — a joint geometry that a straight clamp cannot cover, because the leak sits on two planes at once.

PE Tee Weld Seam — Moulded Steel Tee Clamp Wrap
The tee clamp is opened over the fitting and the segments are brought together.

A tee repair clamp is built around the branch: the body wraps the run, the outlet collar wraps the branch, and the two halves close on the fitting without dismantling the pipework. Sealing is by compressed rubber gasket across the whole weld, so the repair does not depend on the quality of the original weld.

PE Tee Weld Seam — Moulded Steel Tee Clamp Wrap
The tee clamp is opened over the fitting and the segments are brought together.

A tee repair clamp is built around the branch: the body wraps the run, the outlet collar wraps the branch, and the two halves close on the fitting without dismantling the pipework. Sealing is by compressed rubber gasket across the whole weld, so the repair does not depend on the quality of the original weld.

PE Tee Weld Seam — Moulded Steel Tee Clamp Wrap
The tee clamp is opened over the fitting and the segments are brought together.

A tee repair clamp is built around the branch: the body wraps the run, the outlet collar wraps the branch, and the two halves close on the fitting without dismantling the pipework. Sealing is by compressed rubber gasket across the whole weld, so the repair does not depend on the quality of the original weld.

PE Tee Weld Seam — Moulded Steel Tee Clamp Wrap
The clamp wraps branch and run; the joint is sealed and the tee stays in the ground.

After the bolts were torqued in sequence the joint held at full operating pressure. The tee itself stayed in the ground, so the repair took hours rather than the day-plus a cut-out and re-weld would have needed.

PE Tee Weld Seam — Moulded Steel Tee Clamp Wrap
Issue
PE Tee Weld Seam — Moulded Steel Tee Clamp Wrap
Installation
PE Tee Weld Seam — Moulded Steel Tee Clamp Wrap
Installation
PE Tee Weld Seam — Moulded Steel Tee Clamp Wrap
Installation
PE Tee Weld Seam — Moulded Steel Tee Clamp Wrap
Completed

Record

Site

Pingyao, Shanxi, China

System

PE water main — tee branch

Condition

Fusion weld at the tee-to-pipe transition seeping; the joint was excavated and left open for the repair.

Supply

Moulded steel tee repair clamp, shaped to the tee, wrapping the run and the branch outlet in one piece.

Status

Seam sealed with the line live — no cutting out of the tee, no re-welding on site.

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