Shandong Liaocheng Hongfu Pipe Industry: Inspection of Ductile Iron Pipe Diameter and Wall Thickness Requirements

Shandong Liaocheng Hongfu Pipe Industry: Inspection of Ductile Iron Pipe Diameter and Wall Thickness Requirements
1. Pipe weight control system. The process should ensure that the weight of the pipe is within the standard tolerance range.
2. For dimensional inspection, the size of each pipe fitting should be inspected with a standard gauge to meet the specified tolerances.
3, hydrostatic test, each tube, regardless of the size of the pipe diameter, should be carried out hydrostatic test or equivalent effect test.
4. The anticorrosion layer, the thickness of the inner and outer anti-corrosion layers shall meet the requirements of the standard.
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