The TIS arch umbilical sheave is a high quality item of equipment designed specifically for long life, ease of use and maintenance. It has a mainframe of robust steel plate construction, equipped with a single lift eye and tie down fixture points.
The main framework is protected by a two stage powder coat system. Steelwork is first blasted to give a uniform clean surface, it is then primed with polyzinc primer and cured in an oven before applying a final durable polyester finish to customer's color.
The sheave has the facility to allow the umbilical to be fi tted and removed while the sheave is suspended, this is achieved by use of a hinged section to one side of the lift point.* Large diameter nylon rollers having a spherical section are used to provide full support the umbilical section thus preventing any crushing effect on the inner lines. The lower, load bearing rollers are fitted with ball bearing cartridges and provided with grease nipples. All rollers run on stainless steel shafts, the top set have quick action sprung fixtures that allow full assess to the umbilical in a mater of seconds
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