1-General Standard Name
Stainless steel instrument flow limiting valve, welded steam-water sampling flow restrictor, pipeline fixed flow stabilizer.
2-Structural Features
Connection: Both ends stainless steel male thread welded nozzle for butt welding with instrument seamless steel pipe.
Structure: Anti-slip manual handwheel with precision flow limiting plug, stepless adjustment to stably limit pipeline flow and protect rear instruments from flow impact.
Material: 304/316 stainless steel forging, suitable for high temperature high pressure steam-water and process gas.
Function: Special optimized flow characteristic for steam-water sampling system, maintaining stable instrument flow under system pressure fluctuation.
3-Application
1.Electric Power & Energy Industry (Core Application)
Standard valve used in steam-water sampling systems, high-temperature/high-pressure sampling panels, and low-temperature instrument panels in thermal power plants, CHP plants, and nuclear power plants.
Installed at the front end of online analytical instruments (conductivity analyzers, pH analyzers, dissolved oxygen analyzers, sodium/silica analyzers) to stably control sample water flow, preventing excessive flow from damaging instruments and insufficient flow from affecting measurement accuracy.
Used for flow distribution and flow limiting control in sampling circuits of boilers, steam turbines, deaerators, and other thermal systems.
2.Petrochemical Industry
Used in online process medium sampling pipelines in refineries and natural gas processing plants to provide constant-flow sample gas/sample liquid for analytical instruments.
Provides flow limiting for high-pressure chemical pipelines, protecting downstream precision detection components from pressure impact.
3.Instrumentation & Automation Industry
Used for stable flow control in integrated online analytical instrument systems and laboratory gas/liquid circuits.
Supporting valve for chromatographic analysis, water quality monitoring, and other equipment to ensure stable testing conditions.
4.Metallurgy & New Energy Industry
Used for flow limiting and stable flow regulation in steam-water sampling systems of metallurgical waste heat power generation and captive power plants, as well as process fluid pipelines in photovoltaic and lithium battery industries.
