Instrumentation needle valve

Instrument needle valves, instrument measuring the piping system is an important part of the main shut-off valve and ball valve, mainly used for cutting the pipe open or access available. Installation Notes: Valve must be visually inspected prior to installation, the valve plate should comply with existing national standards, "Universal Valve logo" GB 12220's. The outer surface of the instrument needle valve body also affected by atmospheric corrosion, general steel materials to paint to protect.