The hardness of the hard seal ball valve we should be how to control
Views: 1 Author: Site Editor Publish Time: 2016-07-18 Origin: Site
Today, small make up for you to sum up about how to control the hardness of the ball valve related to the hardness of the relevant knowledge, and small make up to look at it!
1.In the ordinary hard seal ball valve only opening and closing two locations, hard seal ball valve a general in the control accuracy requirements and parameters required for the smooth selection; seal ball valve z3cf three normally open type, with three flow micro Kai, wide open and closed; ZDF Z1/1 combination work hard seal ball valve is open, open, open, open four flow.
2.The action time: refers to the main valve is signals successfully switched on or cut off the completion time, there are some multifunctional hard seal ball valve can open and close time were adjusted to, not only the control accuracy can meet the requirements, prevent water hammer damage.
3.The leakage amount of the sample is given the value of the common economic level, if too high, please make a special order.
Used to achieve the pipeline system and flow control of the parts is a hard seal ball valve, has been widely used in many fields such as petroleum, chemical, metallurgy, water and electricity, etc.. With high temperature resistance, light control, open and close without friction, with the torque of the transmission mechanism is gradually increased to compensate for the closure of the seal, the sealing performance and service life of the valve is improved.
In the petroleum, chemical, power, pharmaceutical, food, light industry and other industry hard seal ball valve is widely used, in control of high temperature or with particles and fibers of the fluid medium has great advantages, especially in power plants, metallurgy industry boiler, pulverized coal injection and scaling, freezing the conveying pipe. Installation of a hard sealing ball valve in the diameter direction of the pipe. In the cylindrical body of the channel, around the axis of rotation at 0 degrees ~90 degrees between the disc shaped disc, the rotation to 90 degrees, the formation of a fully open state.
The sealing structure is adopted on the hard sealing ball valve, the sealing material is rubber, PTFE, etc.. Due to the structural characteristics of the restrictions, can not adapt to high temperature, high pressure and corrosion resistance, wear resistance and other industries. Three eccentric metal hard seal butterfly valve is now more advanced one, the valve body and valve butterfly valve seat to form a piece of structure, welding temperature, corrosion resistant alloy material in the valve seat sealing surface layer.