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Preparation before construction of trench fittings
What preparations are needed for trench fittings before construction?
1. The specifications of galvanized carbon steel pipes and groove fittings should meet the design pressure requirements, with uniform galvanizing on the pipe walls, smooth and clean inside and outside, and no rust or burrs; Rubber sealing rings shall not have air holes, cracks, double skin, or seams, and pipes and fittings shall have factory certificates of conformity.
2. The specifications and models of the valve should meet the design requirements; The valve body is cast according to the rules, with a smooth surface, no cracks, flexible opening and closing, tight closing, intact packing seal without leakage, intact handwheel without damage, and has a factory certificate of conformity.
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Application case of grooved pipe fittings in construction industry
Fang'an Industrial Park, Fangzi District, Weifang City, Shandong Province
