Shanxi customers Zhang Q: coal steel mesh skeleton polyethylene pipe should meet certain requirements, what specific criteria? Golden Link Pipe technical director Kou workers to answer your questions: coal steel mesh skeleton polyethylene pipe requirements are the following aspects: 1, the appearance of the inner and outer surfaces of the pipe should be clean, smooth and coal steel mesh skeleton composite pipe, does not allow bubbles, cracks and visible scratches, dents, impurities, uneven color and other defects. 2, the end vertical pipe at both ends of the cutting surface should be flat and perpendicular to the axis, the end vertical shall be 90 ± 5 ° 3, the wall thickness of the pipe wall thickness and wall thickness deviation of the same cross-section and thickness deviation shall be in accordance with Table 1, Table 2 requirements. Shanxi customers Zhang Q: coal steel mesh skeleton polyethylene pipe should meet certain requirements, what specific criteria? Golden Link Pipe technical director Kou workers to answer your questions: coal steel mesh skeleton polyethylene pipe requirements are the following aspects: 8, drop hammer impact performance when tested in accordance with the provisions of the pipe 7.8, 10 samples 9 should be free of cracks and damage. Hydraulic Performance 9 9.1 Short-term hydrostatic strength performance test temperature is 20 ℃, gas common pipe (KMQ) at a test pressure of 1.6 × 2 times the nominal dwell 1h ore steel mesh skeleton polyethylene pipe, the pipe should not be broken, no leakage; liquid generic tube (KML) at a test pressure of 2 times the nominal dwell 1h, the pipe should not broken, do not leak. 9.2 burst pressure performance test temperature is 20 ℃, gas common pipe (KMQ) at a test pressure of 3.3 × 1.6 times the nominal pressure, pipe should be no blasting; liquid generic tube (KML) at 3 times the nominal test pressure, pipe should not be blasting. 9.3 negative resistance test according AQ1071-2009 requirements (pressure duct (KF) with liquid universal pipe (KML) does not require this). Mine steel mesh skeleton composite pipe | composite pipe | Golden Link Pipe by pipe Industry Co., Ltd. Hebei Golden Link. Hebei Golden Link Pipe Industry Co., Ltd. (www.hbjinlingpipes.com/) strong, credible, Hebei Hengshui chemical products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Golden Link Pipe and you work into the brilliant, for a better future!