Control valve consists of two major assemblies components: body assembly and actuator assembly (or actuator systems), is divided into four series: single-seat series control valves, control valves seater series, sets cylinder series control valves and self-series control valve.
2015年12月1日星期二
Control valve type
Many types of valveGas Control Valve, commonly used through single-seat, through two-seater, angular, diaphragm, low flow, tees, eccentric rotation, butterfly, sleeve type, spherical and the like.Propane Control Valve in the specific choices, do the following considerations:
Mainly based on the selected flow characteristics and unbalanced forces and other factors to be considered.
When the fluid medium is a suspension containing a high concentration of abrasive particles valve's internal materials to be hard.
As a corrosive medium, try to choose simple valve.
When the medium temperature, high pressure and great change, and should be chosen disc and seat materials by temperature and pressure changes small valves.
Flash and cavitation only in a liquid medium. In the actual production process, steam and air will form a vibration and noise, shortening the life of the valve, so the valve to prevent the valve should be chosen to produce steam and air.
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