What are the reasons for the leakage of card socket joints? How to effectively prevent?
seal ring sealing groove is too deep and cause leakage.
Structure and working principle of needle valve
External spring-sealed fully-opened needle valve structure: mainly by the body (including the seat), spool (including the stem), and pressure load composition.
Matters needing attention when selecting instrument valve
Basic valve/package design
Pressure fluctuation
Pressure and temperature considerations
