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 mode, structure type, working principle, sealing material, and so on. The main quality indicators are leakage, strength and stiffness, dimensional tolerances, surface roughness, and so on. There are many types of instrumentation valves. According to the form of movement of the closing member, it can be divided into linear motion type and rotary motion type. […]
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
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.
