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. […]