WBH Refurbishment Program


Client: First Gas Limited (FGL)
Location: NZ
Scope: Site Mechanical & Workshop Inspection Supervision
Date: 2017-2018
Project Length:


Oil & Gas

OSD’s Role

  • Supervision of both site mechanical works and workshop refurbishment for ten WBHs
  • Removal, disassembly, blasting, inspection, procurement, fabrication, modifications, coating, reassembly and reinstallation of the WBHs.


Gas-Fired Water Bath Heaters (G-FWBH) Inspection Programme was initiated to satisfy First Gas’s obligations for statutory inspection every ten years in accordance with the Health and Safety in Employment (Pipelines) Regulations. Many of the heaters have had no inspections performed since installation and several have significant historical internal corrosion scabbing which prevents the corrosion inhibitor from protecting the heater internals.

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We are pleased to announce that we have changed the name of one of our key subsidiaries, OSD Pty Ltd to Verbrec Infrastructure Services Pty Ltd as of 17 October 2022.

Rebranding to Verbrec represents our evolution and continued growth by leveraging emerging technologies, thereby remaining at the forefront of an ever-changing industry. Evolution, engineered.

Verbrec has expanded its capabilities significantly to support our clients’ needs and built what we are today, a leading mid-tier engineering, infrastructure, and training company operating across the entire asset life cycle.

Important: Please note that this is a rebranding exercise and as such, will be a name change only; there is no other change to the details of the business. The entity’s beneficial ownership, ABN, registered address and all other relevant details remain the same.

Find out more about our history and plans for the future...