Leak-Tight Double Block & Bleed Isolation
Trusted By
You get the confidence of a 100 percent seal, confirmed before depressurising the pipeline and monitored throughout the entire job. On our most recent job, there was a difficult internal weld seam that stuck out quite a bit, and we were unsure whether we would get a 100 percent seal. A stopple would definitely have leaked. But the BISEP sealed perfectly the first time. The welders downstream love it, and they have confidence in the isolation, plus we know that we’ve significantly minimised the risk.
James Graham
Manager of Specialist Trades
Firstgas
About STATS Group
We are market leaders in the supply of pressurised pipeline isolation, hot tapping and line stopping services to the global energy industry.
We provide high quality, fit-for-purpose solutions to ensure that the pipework and pipeline infrastructure of our clients meet the technical, safety and environmental standards required.
From our Kuala Lumpur and Perth bases, we service clients across APAC. Our operational facilities include workshop and yard area to support the assembly, test and maintenance of industry leading equipment. Local design and project engineering teams ensure dedicated project support.
Malaysia - Kuala Lumpur
STATS Pipeline Services Sdn Bhd
No.42 Jalan 1/3
Kawasan Perusahaan Olak Lempit
42700 Banting
Selangor, Malaysia
Tel: +603 8920 7231
Dale Millward
Tel: +60 17 5883 888
Australia - Perth
STATS Pipeline Services Pty Ltd
70 Catalano Circuit, Canning Vale
Perth, Western Australia
6155, Australia
Simon (Sam) McKinnon - Perth
Tel: +61 447 909 066
Hafiz Abdul Kareem - Brisbane
Tel: +61 426 422 466
Thailand - Bangkok Agent
Pipeline & Piling Services Co Ltd
19 Soi Chaloem Phrakiat Rama 9 Soi 2
Sukhumvit 103 Road, Nongbon, Pravet
Bangkok 10250, Thailand
Tel: +(66) 02 745 9348
Tawatchai Prasert
Tel: +(66) 81 615 7850
See the BISEP In Action
Hot Tapping & Line Stop Case Studies
The BISEP® has been deployed extensively across the Asia-Pacific region, and is the world’s first hot tap installed leak-tight double block and bleed isolation of high pressure Hydrogen and liquid CO2 pipelines.
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3" – 56"Pipelines
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-20°C – 100°CTemperatures
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Ambient to 2220 psiPressure Range
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DNV TypeApproval
Field-Proven
Line Stop Technology
Product Information
BISEP Line Stopping
BISEP® offers significant safety advantages over traditional line stop technologies, with the hydraulically activated dual seals providing leak-tight isolation of live, pressurized pipelines.
Applications
- Pipeline launcher valve installation / replacement
- Pipeline repair, replacement, or decommissioning
- Pipeline / pipework re-routing
- Mid-line repair of pipeline defects
- Isolating pressure vessels
- Isolation of pipeline end manifolds, pipeline end terminals for repair, upgrade, or replacement
Multiple BISEPs® can be used to provide mid-line isolation of pipeline sections, and the introduction of a bypass line allows sectional isolation to take place without the need to shut down your entire system – or affect product flow.
The BISEP® is designed to resist backpressure and therefore can also be used as a test boundary for pipeline reinstatement testing.
Uniquely the BISEP® is designed to take 50% of its design pressure in the reverse direction. This allows pressure higher than the isolated pipeline pressure to be applied to the reinstated pipework (as a pressure test or purge) prior to removing the BISEP®.
STATS also supply split tee fittings or mechanical tie-in clamps for hot tap and line stop applications along with its patented dual seal slab valves and SureTap hot tap machines.
To allow the BISEP® and valve to be recovered a completion plug and blind flange can be provided to isolate the fitting branch off-take.
