The relief valve and working principle of the float valve
Publish Time: 2016-09-19 Origin: Site
Ball valve is a kind of use a sphere as a closing of the valve, the valve body, valve seat, mainly for the sphere, the valve stem and handle (or other drive).Driven by the valve stem, and around the ball valve axis of rotation.Mainly used in the pipe used for cutting or distribution and the change of flow direction of medium.There are many different kinds of ball valves, including its action principle and medium and application fields of different, today small make up to introduce the relief valve and the working principle of the float valve.
The working principle of the float valve
Accused of floating ball valve is love by rotary valve to keep the valve open or occlusion.Ball valve switch lightweight, small size, can make it big caliber, reliable sealing and structure?Simple, easy maintenance, sealing surface and the spherical often in the closed state, not easily be medium erosion, has been widely used in various industries.
Remote control float valve is love by rotary valve to keep the valve open or occlusion.Ball valve switch lightweight, small size, can make it big caliber, reliable sealing, simple structure, convenient maintenance, sealing surface and the spherical often in the closed state, not easily be medium erosion, has been widely used in various industries.When the water pipe from the inlet end, because of the needle valve, ball valve, floating ball valve is normally open, water through the micro filter, needle valve, control room, ball valve, floating ball valve into the pool, the control room not formation pressure, the main valve opens, the water tower water supply (pool).
Rose to the surface of the water tower (pool) setting height, floating ball float close floating ball valve, control indoor water pressure increases, promote the main valve closed, stop water supply.When the water drop, floating ball valve reopens, control the water pressure drop, the main valve to open again continue to water supply, set to keep the liquid surface height.
The working principle of the relief valve
Safety valve is open-close part under the action of external force in a normally closed state, when the equipment or piping within the medium pressure than specified value, through a discharge medium system to prevent the pipeline or equipment within the medium pressure in excess of the prescribed value.So, what is the working principle of the relief valve?
When the relief valve disc, the steam pressure exceeds the pressure of the spring force, the valve is open.Open valve, discharge steam due to the rebound of the adjusting ring effect on disc clamping ring, quickly open the valve.As the disc up, steam impact on the adjusting ring, lead to the vertical direction of exhaust steam down, pushing the reaction of the exhaust steam to produce disc upward, and within a certain range of pressure to keep the disc on the hoisting height enough as the safety valve open, steam discharge, the steam pressure gradually reduced in the system.At this point, the spring force will overcome the vapor pressure on the disc and exhaust steam reaction, so as to close the valve.
Above on the relief valve and the working principle of the float valve is introduced here.