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A deformable structure seal that does not require the re-machining of damaged and worn flanges has been introduced by Garlock Sealing Technologies.
The Helicoflex range of Omicron seals work on the principle of plastic deformation, the outer material of the seal is more ductile than the flange face material. The seal outer material encloses a close wound, oval shaped helical spring. This internal spring resists compression and causes the outer sealing material to deform and permanently contact the flange sealing surfaces.
Dependent on the process these seals are available in a range of jacket materials including aluminium, mild steel, nickel and stainless steel. When specified as original equipment the mechanical and material properties of the seal can help protect flange faces from wear, resist corrosion, radiation and extremes of temperature. They are specified for operating temperatures in the range -269ΒΊC to 750ΒΊC and pressure up to 1000bar for liquids. A gas leak rate of less than 10 -8 Atm cc/sec. is achievable. Potential applications include process lines, boilers, reforming pipes, corrosive gases, nuclear and the petrochemical industry. The seals are available in standard ISO PN and Flange Classes with sizes up to 692mm in stock and larger diameters available on request.
π SIMILAR VOLUMES
## Abstract A prospective multicentric study was carried out in patients having metalβonβmetal METASUL components (Sulzer Medica, Winterthur, Switzerland) in order to check the following null hypotheses: H1: The concentration of Co, Cr, Ni, and Mb in blood and urine is not modified by the implant o
Copper wires have been cold-worked or subjected to radiation damage. Simultaneous measurements of resistance have been made on a damaged wire and a well-annealed wire. The resistance measurements are made over the temperature range from 4.2"K to 77Β°K. The differing behavior of the temperature-depend