Pipe fittings inspection standards

Pipe fittings inspection standards:

1. Appearance inspection
Appearance inspection is mainly to inspect the appearance of pipe fittings, including surface quality, no defects, no obvious deformation, etc. For welded connecting pipe fittings, the appearance of the weld should also be inspected. Among them, the overall dimensions should meet the requirements, and there should be no obvious burrs, cracks, warping, wrinkles and other surface defects.

2. Physical and mechanical performance testing

Physical and mechanical performance testing mainly tests the strength of pipe fittings, including yield strength, tensile strength, impact toughness, etc. For different pipe materials, the testing methods may be different.

3. Chemical composition analysis
Chemical composition analysis mainly analyzes the materials used in pipe fittings. Through chemical analysis, we can understand the composition of the material in detail and can detect the presence of impurities and undesirable ingredients.

4. Wall thickness measurement and dimensional accuracy inspection
Wall thickness measurement and dimensional accuracy inspection are mainly to detect whether the dimensional accuracy and wall thickness of pipe fittings meet the design requirements. Among them, the wall thickness measurement error should not exceed 5% of the allowable deviation of the pipe wall thickness.

5. Corrosion resistance test
The corrosion resistance test mainly tests the corrosion resistance of the materials used in pipe fittings. The corrosion properties of pipe fitting materials are tested through chemical tests and electrochemical methods to understand the corrosion resistance of pipe fittings under different usage conditions.

6. Coating quality inspection
Coating quality inspection is mainly for pipe fittings with special coatings. Mainly includes testing of coating thickness, adhesion, corrosion resistance, etc.

The above are the commonly used inspection standards for pipe fittings. Through these inspections, we can ensure that the quality of pipe fittings meets specifications and avoid accidents and risks during use. At the same time, we also remind everyone that when purchasing and using pipe fittings, you must choose standardized and high-quality products.

Go here to learn more: Uses, types and standards of pipe fittings