TECHNICAL MANUAL - Sharq.biz

electrofusion welding UNI 10521visual controlThe visual control is relative to the following checks:• if fusion indicators (proof of the correct fusion cycle) are present on the fitting,they must fulfil the direction of the fitting manufacturer (usually, come out oftheir cavities);• the welded elements must be correctly aligned;• there cannot be fusion lacks between the welded elements;• the scraped area must be clearly visible on the whole circumference of thewelded elements;• the insertion deep previously marked on the elements to be welded must berespected;• no protrusion of melted material and damages on the outside surface of thewelded elements are shown.Take also care of the possible error messages on the display of the electrofusioncontrol unit used for the jointing operation.59