BI-STOP Line Plugging

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4 Deploys

Small-Bore Line Plugging

Page last modified
April 11 2024

The patented BI-STOP™ solution provides a unique temporary line plugging system. BI-STOP addresses challenges with small-bore pipework that have absent or limited isolation facilities. This cost-effective solution enables small-bore pipework to be isolated, cut and if required, terminated with a full-bore valve while the system remains live. BI-STOP allows maintenance or remediation activities to be carried out safely and reliably, eliminating the need for a system shutdown.


  • Provide a temporary isolation to facilitate pipework repair or modification
  • Install a system specified full-bore valve where isolation facilities are absent or limited
  • Cap and terminate dead leg or redundant pipework
  • Provide a permanent or temporary pipework tie-in
Pros & Limitations
Cost-effective solution for temporary isolation of small-bore pipework eliminating the need for a system shutdown
Unplanned outage and maintenance costs are either eliminated or significantly reduced
No need to leave temporary mechanical fittings on the pipe
Temporary isolation allowing modifications without the need for hot-work
Innovative equipment design addresses pipe destruct and construct requirements including pipework reinstatement testing
Single seal isolation
Pressure range limited to 51.1 bar
Specification Title Specification Description
Size range
1", 1.5" & 2"
Pressure range
51.1 bar / 741 psi
ANSI Class


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Technology Readiness Level

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Development Technology demonstration Mature / Proven
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STATS Group are market leaders in the supply of pressurised pipeline isolation, hot tapping and plugging services to the global energy industry. DNV type approved isolation tools provide leak-tight double block and bleed isolation that enables safe and efficient maintenance and repair of onshore, topsides and subsea pipeline infrastructure.

Process Plant Solutions offer hot-work barriers and localised hydrostatic weld test tools to verifying the integrity of welds or fittings, reducing system downtime, minimising environmental impact and increasing worksite safety. Mechanical repair clamps and pipe connectors replace the need for welding, significantly reducing expenditure and associated risks with hot-work providing the tie-in, repair or end-capping of pipelines.

STATS has gained an excellent reputation for providing a responsive, client-centred approach combined with expertise and innovative products which:

  • Drive higher levels of safety in the industry  
  • Enhance environmental performance by reducing flaring and venting activities
  • Improve asset performance while reducing system or plant downtime
  • Support the industry transition to a low carbon future

Project management and engineering services are provided to support client needs including turnaround scopes, feasibility studies and contingency planning. In-house expertise extends over the entire lifecycle of hydrocarbon assets from construction, maintenance, asset life extension, through to decommissioning and on to hydrogen transportation, carbon capture and storage.

STATS provide high quality, fit-for-purpose solutions to ensure that the pipework and pipeline infrastructure of its clients meet the technical, safety and environmental standards required.

Headquartered in Aberdeen, Scotland, STATS Group operate globally through a growing network of operational bases, including Canada, USA, Qatar, the UAE, Oman, Saudi Arabia, Malaysia and Australia.  

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