How to choose instrumentation valve

Walter instrumentation valves are fully interchangeable with Swagelok® & Parker A-Lok® and Parker CPI™. Our China-made fittings are used in instrumentation tubing systems in all processes, including oil and gas, pulp and paper, steel manufacturing, and energy. Instrumentation valve industrial performance and quality requirements: The main performance indicators of instrument valves are nominal diameter, connection […]
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
.jpg)
Basic valve/package design
Pressure fluctuation
Pressure and temperature considerations
How to Select Valve Materials

The challenge of selecting a material is actually to verify that the chosen material is the most suitable for the application. This involves taking into account working conditions and flow medium characteristics.