Product inspection of couplings

OnCouplingBefore leaving the factory, there will be many inspections. The following is the performance inspection of the coupling before leaving the factory: Before the coupling leaves the factory, it is necessary to check the installation dimensions, overall dimensions and appearance quality according to the drawings. The inspection should be carried out as follows: Rubber surface There should be no bumps, cracks, lack of glue and metal delamination.No stamping marks, slight bumps and burrs with a depth exceeding 1.0mm are allowed.The rubber on the metal surface that does not allow bubbles with a depth of more than 1.5mm should be removed.The metal surface of the rubber assembly should be coated with anti-corrosion protective paint. Each coupling should be rated torque, rated torsion angle, and instantaneous maximum torque according to the technical data of the GTL3021F series of high-elastic couplings