The J-tube seal is designed to seal offshore wind power J-tubes, preventing the loss of corrosion inhibitors. It consists of a ductile iron body and a polyurethane seal. It is used not only in the offshore wind industry but also on oil and gas platforms.
The split clamp, secured with screws or wires, allows for quick installation. It must be attached to the cable before deployment. It is then pulled into the J-tube or I-tube, typically behind the flare, and normally connected to a bend restrictor.
The polyurethane seal's flexibility ensures it does not damage the J-tube or cable. Its resilient nature ensures a perfect fit against the J-tube's interior, preventing fluid leakage.
Key Features of J-tube Seals
• Design life: up to 25 years
• High integrity sealing elements
• Dual seal design allows pressure verification prior to leaving worksite
• Hydraulically activated by ROV or diver
• Easily removed for decommissioning
• Subsea coating system with cathodic protection
• Full in house pressure and slip testing capability
• Established range of standard and quick install bend restrictors available to protect the cable or umbilical on the back end of the J-Tube Seal
With more than 10 years experience in subsea cable protection system, Philson has produced a wide range of cable protection system for offshore wind, oil and gas industry. J-tube seals are critical in maintaining the long-term reliability of subsea installations, ensuring safety and preventing costly failures due to environmental factors or physical damage.
