Seitenzahl 2
INSTALLATION & MAINTENANCE PAGE 3-7 Liftting lugs Bellows Intermediate pipe Welding end Bellows Hinge Flange Wooden shipping batten Bellows Gimbal Bellows Flange Protective cover Pipe end Tie rod Pipe end Transit/pre-tensioning bars (marked by yel- low and black striped tape) Pipe end Bellows
Seitenzahl 3
4 11/2019 INSTALLATION AND MAINTENANCE Compensators are designed to absorb movement according to predetermined design data. The calculated service life of a compensator is based on the precondition that the compensator will never be subjected to mechanical or thermal load exceeding the stated design data. In order to achieve the maximum service life, pressure resistance and reliability, caution should be taken during handling, storage and installation of the compensator. The necessary care should include taking the following advice. Failure to comply with the installation instructions could reduce the service life and pressure capacity of the compensator, which could lead to damage or at worst breakdown of the compensator or the pipe system. STORAGE AND TRANSPORT We recommend that a visual inspection is carried out immediately on receipt of delivery of the com- pensator to ensure that it has not been damaged during shipment. ● T ransport fittings, tie rods, hinges or gimbals should not be used to sling and lift the com- pensator. The compensator should not be lifted by slings or chains around the bellows and must not be lifted in a manner which causes the bellows to be subjected to mechanical loads. ● T he compensator must not be subjected to torsion during handling and installation. ● T he compensator should be stored on an even, solid surface in a clean and dry environment under a roof or other rainproof cover. ● C ompensators should not be stacked on top of each other or knocked against each other. ● I f the weight of the end fittings tends to cause the bellows to bend the ends should be braced using wooden supports. ● C are should be taken to avoid mechani- cal damage as well as damage by water, moisture, sand, soil, building materials and chemicals. Transport fittings/ pretensioning fittings Transport and pre-tensioning bars will be identified by yellow and black striped tape. These fittings must NOT be removed until the compensator is fully installed. If these devices are removed prematurely the compensator may move to an incorrect condition and could possibly endan- ger people working in the vicinity. Furthermore, premature removal could cause the compensator not to function as intended, which could result in reduced service life or at worst breakdown of the compensator. I N S TA L L AT I O N Installation should be carried out by suitably trained and competent staff working in compliance with relevant legislation and regulations for occupational safety. Prior to installation Unless clearly stated in the design data of the compensator, the compensator is not designed to compensate for installation inaccuracies in the pip- ing and must not be used to connect them. Prior to installation the compensator should also be checked that it is undamaged and has no dents, damaged fittings and water marks on the steel (incipient rust) etc. It should also be checked that: ● The compensator is free from foreign objects such as insulation materials, dirt or debris. ● S ealing surfaces on flanges are even and clean. ● T he gap in the pipeline where the compensator is to be installed matches the specified instal- lation length of the compensator with design tolerances taken into account. The compensa- tor must be fitted at the length stated in the specifications. ● T he connecting ends of the pipeline are clean and correctly prepared for welding. ● T he installation location of the compensator in the pipeline complies with that determined by the system designer. ● T he expansion of the pipeline is in accordance with the design data of the com- pensator. ● T he adjacent pipework is correctly installed with anchors, guides and supports in place. ● A nchors must be adequate to accept reaction forces from the compensator and all other pipework loads.
