Introduce

Flush valve is outside the pipe fluid conveying system control unit, it is used to change section and flow property of underlying index, with no diversion, cutting line, regulate, throttle, back to Time Delay Tap shunt or unloading overflow, and so on. Flush valve for fluid control, from the most short cut line of valve to the extremely complex pure control system used in all kinds of flush valve, its category and specification is various, the flush valve nominal diameter instrument valve from tiny to size of industrial pipe valves. Flush valve can be used to control water, steam, oil, gas, mud, all kinds of corrosive medium, liquid metal and radioactive fluid and so on various types of fluid flow, the work of the flush valve for pressure from the ultra-high pressure, temperature from ℃ ultra-low temperature to work do ℃ high temperature.
Flush valve control stainless steel toilet can be used more kind of transmission ways,such as manual, electric, hydraulic, pneumatic, worm gear, electromagnetic actuator, electromagnetic, hydraulic, electric, hydraulic, pneumatic, hydraulic, gear, bevel gear drive, etc.; Can are pressure, temperature or other situation of sensor signals to do with the move, according to the requirement of the reservation or not depend on the sensor signals and brief or closed, flush valve according to drive or take the initiative to make the open-close part do ups and downs, slip, rotary pendulum or reversal came activities, so as to change the port area of intrusive in order to realize its control effect.
The four main technical parameters of flush valve, flush valve technology, flush valve technology seal flush valve sealing performance refers to flush valve leakage of the sealing parts of the power, it is the most important technical performance target of the flush valve. Flush valve sealing parts, no three places: the open-close part take the seat the contact point between the two sealing surface; Packing in stem and packing gland with and place; The joint of body take cover. The leakage is stainless steel squatting pan called before a leak, known as the closed lax, it will affect the flush valve truncation property of power. Against block valve type, internal leakage is not answer when. After the two called the leakage of leakage, the interface from leaking to the outside of the valve in the valve. Leakage will constitute a material loses, pollution, serious when still can constitute a incident. To deal with the difficult combustion difficult explosive, non-toxic or non radioactive medium volume, leakage is means less answer when, if the flush valve must have no sealing performance.
Flow property of through the flush valve after causing a loss of pressure drop (both before and after the flush valve pressure difference), which is flush valve without a certain amount of resistance to the flow of medium quantity, property of resistance to conquer the flush valve will consume a certain amount of energy. Thought from stainless steel shower tray saving energy flow, the system design and system flush valve, as far as possible low flush valve on the flow property of resistance. Open/close force and open-close torque is refers to the flush valve or close to do hard or torque. Closed flush valve, necessary to make the opening and closing a hair a constitute a seal between the two sealing surface pressure, but also conquer stem take between packing and take the stem nut thread, valve rod end bearing and other parts of the friction force, the fruit of this must be a certain closed force and close moment, flush valves open and close process, is necessary to open/close force and open-close torque is changing, the maximum is being closed at the instantaneous or the initial transient. System design and system when the flush valve when trying to shut down the force and close moment.

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