Gas Purge Pipework Services

The gas purging procedure is a critical process in the management, maintenance, or decommissioning of gas systems. It involves safely removing unwanted or residual gases from pipework or equipment. Often replacing them with an inert gas like nitrogen or purging them into the atmosphere under controlled conditions. See below a case study of our decommission services:

Client: Emcor Facilities Services
Project: Gas Main Purging and Decommissioning
Location: Buttermarket Shopping Centre, Ipswich, Suffolk

Overview 

IDWE Ltd Mechanical Servies team was commissioned by Emcor Facilities Services to carry out the safe purging of redundant gas mains within a shopping Centre.

The project was a critical part of their gas safety services. Ensuring that the gas mains, which were no longer in use. That they were rendered completely safe and compliant with industry regulations.

Challenges of Purge and Testing of Redundant Gas Mains

Redundant gas mains present potential safety risks, such as the build up of residual gas and possible hazards during decommissioning. What’s more, the task required precise gas main isolation. Which included thorough planning, and compliance with stringent safety standards.

Additionally, the project needed to be completed efficiently to minimise disruption to the facility’s operations.

Solution

Our team at IDWe Ltd are fully trained, Gas Safe registered. Our team are experienced to carry out gas purge and test procedures for Commercial Buildings.

The project had a detailed and professional strategy, completing the following:

Site Attendance and Gas Main Isolation

The team attended the site during normal working hours to ensure minimal disruption to the client’s operations. The existing gas pipework was isolated, and the route of the pipework was traced to fully understand its configuration and any potential challenges.

Residual Gas Calculation and Venting Setup

Using industry-standard techniques, the quantity of residual gas within the pipework was calculated, as well as the time required to safely remove it. A low-velocity fan and appropriate hoses were supplied to ensure the controlled gas venting process could be carried out safely and efficiently.

Gas Main Purging Process

Hoses were connected to various points along the redundant gas mains, and the low-velocity fan was used to purge the gas lines to the air. A gas analyser was employed throughout the process to ensure the pipework was entirely free of gas, demonstrating compliance with the highest standards of gas safety services.

Certification and Site Clearance

Upon successful completion of the gas purging process, IDWE Ltd issued a Gas Purging Certificate, confirming that the redundant gas mains were safely decommissioned. A gas analyser was used to ensure the pipework was free of all gas. The site was then cleared of all equipment, and the ends of the pipework were left open in accordance with best practices for gas infrastructure decommissioning.

Decommissioning Outcome

The project was executed to the highest standards of safety and professionalism. The redundant gas mains were successfully purged and decommissioned, ensuring that the building’s gas pipework was safe and compliant.

Conclusion

This project underscores IDWE Ltd’s expertise in gas main purging, decommissioning redundant pipework, and industrial gas safety services. By carefully planning and executing the gas purging process, our fully trained and Gas Safe registered team delivered a reliable and efficient solution that aligned with Emcor Facilities Services’ operational needs.

Gas Purging, Testing & Decommissioning Services

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IDWe Ltd have over 30 years’ experience offering quality services across London and the South East.