Design phase
Our team of engineers will design products according to industry standards. Experienced QC/QA personnel will check all design details according to industry standards to ensure that the product not only meets the standards, but also ensures the best usability, and is fully suited to customer and application requirements. The quality control of valves, starting from the source, controls the main processes of raw materials, processing, assembly, pressure testing, paint, finished product inspection, and strictly implements special processes such as welding, non-destructive testing, micro-leakage testing and low temperature testing. Use approved operating instructions.
Production stage
From foundry to processing, painting, assembly and testing, our quality control/quality assurance personnel must check all items in the quality control/quality assurance manual for the next step. The supervisor of the quality control/quality assurance team will conduct spot checks on the inspection work of the quality control/quality assurance personnel to further ensure that the quality meets the requirements.
Castings: Component analysis, metallographic analysis and physical and mechanical properties analysis will be carried out for each batch of materials.
rubber materials: We need to do aging test, low temperature test, hardness test and adhesion test.
Epoxy coating: When epoxy powder enters, we need to do bonding test, impact test, spark test, thickness test, degree of polymerization test and corrosion resistance test.
Shell test, seal test and operation test will be carried out in accordance with the standard requirements.
Packaging and shipping
Our quality control/quality assurance personnel will conduct final checks to ensure that the products received by our customers are perfect before they leave the factory. Our packing and transportation methods will ensure that the products will not be damaged in transit.