Skip to content
SafetyCulture
Template

DN-17b PE Double Squeeze-Off for Gas Mains 63-355mm

by Alan Milford, from the Community

Downloads: 0
Get this template

This DN-17b procedure outlines step-by-step guidance for performing a PE double squeeze-off on gas distribution mains from 63 mm to 355 mm at low and medium pressure. It details prerequisites and documentation, required tools and equipment, pipe preparation and SDR checks, operational material limits, pressure monitoring setup, and construction and testing of a bypass. The workflow covers purging, venting, and commissioning of the bypass; applying sequential squeeze-offs with safety stops; verifying gas passage at vents; cutting and replacing PE main sections; electrofusion installation; and two methods to re-commission the main (via rider or controlled release). Final steps include leak testing, decommissioning of bypass and vents, re-rounding, sealing, and sign-off.

With SafetyCulture you can

Digitize any process, procedure or policy
Eliminate mistakes made by paper-based processes
Create and share professional reports instantly
Confirm accountability and compliance with a digital log

With SafetyCulture you can

Digitize any process, procedure or policy
Eliminate mistakes made by paper-based processes
Create and share professional reports instantly
Confirm accountability and compliance with a digital log

About author

Community

This community page makes available free workplace checklists and templates created by other users within the SafetyCulture community. SafetyCulture has re-published this content and where possible, has credited the original author. SafetyCulture has not verified the accuracy, reliability or suitability of any community content. You agree that your use of any of this content is in accordance with SafetyCulture’s Terms and Conditions.