Advanced Isolation and Testing Services Sdn Bhd
C-2-06, Street Mall, One South
Jalan OS, Taman Serdang Perdana
Seri Kembangan , Selangor D.E. 43300
Malaysia
ph: +603 8959 8231
fax: +603 8957 9231
contact-
Hot Tapping and Plugging can be achieved using the DNV GL type approved BISEP™. STATS patented BISEP™ provides fail-safe double block and bleed isolation deployed through a single full bore hot tap penetration, without the need for additional bleed or vent ports.
The BISEP™ offers significant safety advantages over traditional line stop technology, the hydraulically activated dual seals provide leak-tight isolation of live, pressurised pipelines.
This high integrity isolation is provided by a spherical dual seal plug which is deployed from a pressure competent launcher through an isolation valve and rotated towards the flow of pressure to be isolated. The seals are activated by a hydraulic cylinder inside the plug which compresses the seals, the resultant radial expansion pushes the seals out against the pipe bore. Further application of hydraulic pressure generates a rubber pressure in the seal elements which allows the annulus void between the seals to be pressure tested. Each seal is independently tested with full pipeline pressure in the correct direction to verify leak-tight isolation. The seal annulus void is vented to ambient through the BISEP™ plugging head to provide a zero-energy zone and provides constant monitoring capabilities to prove the seal integrity before and during maintenance, repair, or modification activities.
Line pressure acting against the tool pressure head maintains seal pressure creating a fail-safe feature providing actuation independent of the hydraulic system. The ejection load resistance is provided by the BISEP™ deployment head.
Dual 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 the entire system or affect production.
Once the BISEP™ is deployed and set in position the pipeline repair or maintenance activities can take place safely and efficiently.
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DNV GL Type Approval:
STATS Tecno Plug™ and BISEP™ are fully certified by DNV GL to verify that the design criteria satisfies the requirements for Pipeline Isolation Plugs to provide dual seal and isolation in accordance with Offshore Standards; DNV-OS-F101 (Submarine Pipeline Systems) and recommended Practices; DNV-RP-F113 (Subsea Pipeline Repair) and in compliance with the following code; ASME BPVC Section VIII, Division 2.
STATS can supply welded split tee fittings or temporary mechanical tie-in clamps along with STATS patented dual seal slab valves and hot tapping services. Once the BISEP™ is recovered, STATS can provide a completion plug to provide permanent isolation to the branch off-take and enable the removal of the slab valve allowing a blind flange to be fitted.
Case Studies
Animation - BISEP™ | PIPELINE INTERVENTION & ISOLATION | PIPELINE REPLACEMENT / MODIFICATION
Animation - BISEP™ | PIPELINE DOUBLE BLOCK AND BLEED ISOLATION | REMOVAL / DECOMMISSIONING
Animation - HOT TAP & PLUGGING: LEAK-TIGHT DOUBLE BLOCK AND BLEED ISOLATION OF HIGH PRESSURE GAS PIPELINES
30” BISEPs™ isolating CO2 pipeline at 2000 psi with active bypass
BISEP™, BI-STOP™ & Tecno Plug™ are Trade Marks of STATS (UK) Limited
For further information regarding the services and solutions we are able to provide please email your enquirey to:
Copyright 2018 Advanced Isolation and Testing Services Sdn Bhd. All rights reserved.
Advanced Isolation and Testing Services Sdn Bhd
C-2-06, Street Mall, One South
Jalan OS, Taman Serdang Perdana
Seri Kembangan , Selangor D.E. 43300
Malaysia
ph: +603 8959 8231
fax: +603 8957 9231
contact-