2026-05-19

The structure and working principle of sanitary ball valves

In one sentence: The sanitary ball valve realizes the rapid opening and closing of the fluid by rotating the ball 90° with the valve stem. Its core competitiveness lies in 316L stainless steel material, Ra ≤ 0.2 μm mirror polishing, full PTFE zero dead angle sealing, and three-piece quick-installation structure, fully meeting the GMP and FDA hygiene compliance requirements of the pharmaceutical, food, and bioengineering industries. At the same time, it supports on-site CIP/SIP cleaning and sterilization, and is one of the most commonly used shut-off valves in high cleanliness pipeline systems.

2026-05-19

The description of stainless steel manholes and sanitary grade manholes

tainless steel manholes (Stainless steel manhole) are safety emergency ventilation devices installed on the top of storage tanks or containers. They are usually used in conjunction with fire dampers and mechanical breathing valves, which can prevent accidents caused by sudden overpressure or vacuum in the tank due to unexpected reasons, and also provide a safety fire-blocking function.

2026-05-19

How can one distinguish the authenticity of stainless steel flanges?

Principle: Austenitic stainless steel (such as 304, 316) has no magnetism in the annealed state, and may have weak magnetism after cold processing; ferritic stainless steel or low alloy steel has strong magnetism. Operation: Place a magnet close to the flange. If it is strongly attracted, it may be ferritic steel or a counterfeit product; if it is slightly attracted or has no reaction, it may be austenitic stainless steel. Limitation: High manganese steel with high manganese content has no magnetism, and other methods need to be combined for verification. 2) Surface observation Principle: The surface of genuine stainless steel is smooth, with uniform color, and has no rust spots or obvious scratches. Operation: Examine the surface of the flange with the naked eye. If rust spots, roughness, or coating peeling are found, be alert to the material issue.