Freudenberg Oil & Gas Technologies is a global provider of innovative sealing solutions and products to the upstream oil and gas industry. We provide a full range of solutions that include elastomeric seals, engineered thermoplastic seals, metal seal rings and high integrity connector solutions for demanding offshore and subsea applications.
Through our facilities in Norway, formally known as Vestpak, we provide manufacturing and project engineering, sales and service support for all Freudenberg Oil & Gas product lines. Additionally, we provide Norwegian operators local inventory support of standard industry ring joints and gaskets.
A ring joint gasket is a metal gasket used in conditions involving very high temperatures and/or pressures.
The RTJ gasket is manufactured according to ASME B 16.20 standards and API spec 6A. Carefully controlling the hardness ensures an effective seal without damaging the flange.
Ring joint gaskets are always used in combination with a special flange that ensures a good seal when the correct material and profile has been chosen.
Spiral-Wound gaskets consist of a V-shaped metallic strip that is spirally wound in combination with a soft filler material.
The metal strip provides the basic structural element, while the filler material provides an excellent seal. This combination of materials means that spiral-wound gaskets may be used under fluctuating temperature and pressure conditions. Depending on the intended application, spiral-wound gaskets may be specified with or without an outer and inner ring.
Vestpak in co-operation with several operators in the North Sea have designed a gasket for pressure testing.The reason behind this exercise was to develope a good alternative to Ring Type Joints currently used in testing.
This gasket is ingeniously designed for pressure testing with ZERO bolt torque. The gasket which has only been a dream of engineers worldwide is now a reality with the launch of the Vestpak TG-RTJ and TG-Compact.
Developed to save valuable time, the fitting of this gasket is simplicity itself. The all round metallic contact with the flanges ensures a perfect seal without bolt torque. And it is tested by Veritas up to 1375 bar.
The gasket is fitted instead of the normal R, RX, BX or compact ring. The soft seal fits into the RTJ groove, exactly centralized by the integral guide ring. The handle of the gasket facilitates the installation and remains in place to give a visible indication that a test gasket is installed.
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The IX-rings are designed and used where the NORSOK CFC (Compact Flange Connections) are in use. The rings come in three different kinds of steel and are coated with PTFE in varying colours in order to distinguish between them. Standard identification NORSOK STANDARD L-005 (NCF5).
All markings should be on the inside of the ring.
Metal jacketed gaskets (either double jacketed or single jacketed) are comprise of a soft filler material encapsulated by metal.
The filler material ensures elastic rebound, while the metal jacket provides the actual seal. It also protects the filler material from pressure, fluctuating temperatures and corrosion. Several types of material are available for making the best seal under specific conditions.
MJ gaskets are traditionally used for heat exchangers, pumps and valves. The elastic rebound and reusability of these gaskets is limited. They require machined flange surfaces and high bolt torque to provide an effective seal.
The Kamprofile Gasket is the most versatile gasket available today, being specified increasingly.
Its unique properties prove themselves under the most difficult conditions. The gasket is comprised of a precision-machined radially grooved metal core face on either side with a range of traditional sealing materials (Graphite, PTFE etc.).
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