Subsea Hot Tap Clamp
STATS subsea Mechanical Hot Tapping clamps facilitate the connection of new branch pipework to existing infrastructure without the requirement for hyperbaric welding or pre-installed tees. Mechanical clamps are routinely used to provide a flanged off-take to enable hot tapping into an existing pipeline while under pressure and with no interruption to production. The clamps can also be utilised as an access point to deploy a temporary double block and bleed BISEP isolation, STATS proprietary line plugging technology.
Subsea mechanical clamps are routinely used to provide a flanged off-take to enable hot tapping into an existing pipeline while under pressure and with no interruption to production. The clamps can also be utilised as an access point to deploy a temporary double block and bleed BISEP isolation, STATS proprietary line plugging technology.
Mechanical Hot Tap Clamp Applications
- Tie-in or re-route of subsea pipeline infrastructure
- Subsea pipeline repair: hot tapping access point to deploy BISEP, double block and bleed line plugging technology
Key Features
- Designed to meet clients pipeline pressure and size requirements
- Dual seal design, independent activation of seals and locks
- Designed to be compatible with STATS BISEP line plugging technology
- Designed to withstand full pipe separation loads (full structural design)
- Hydrogenated Nitrile Butadiene Rubber (HNBR) seal supplied as standard, alternative sealing material available upon request
- DNV Design Review Certificate available upon request (optional item)
- Annulus test port allows a pressure test between the dual seal arrangement
- Designed for compatibility with a wide range of pipe materials including carbon steel and stainless steel as standard, duplex available on request
- External grip assembly applies even linear and circumferential grip load around the host pipe, eliminating localised material deformity and localised stress fractures.
- Easily installed and commissioned by divers with basic training
- External grip, lock and seal assemblies eliminate possible flow disturbance and turbulence
Applicable Standards & Specifications
- DNVGL-ST-F101 Submarine Pipeline Systems
- ASME Boiler and Pressure Vessel Code, Section VIII, Div 2API 5L, Specification for Line Pipe
- ASME B16.5, Pipe Flanges and Flanged Fittings
- ASME B31.8, Gas Transmission and Distribution Systems
- ASME B31.4, Pipeline Transportation Systems for Liquid Hydrocarbons
- API 6H, Specification on End Closures, Connectors and Swivels
- External coated in accordance with Norsok M501 System 7
Related Resources
Subsea Mechanical Clamp and Hot Tap Tie-In
Subsea Mechanical Hot Tap Fittings
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