Stainless steel valve knowledge lecture hall 'classes'!
Stainless steel valves knowledge lecture hall & other;
Throughout the &; classes?
Stainless steel valve is the floorboard of the types of valves, stainless steel valves can be classified according to the material, valve type, the material of stainless steel valves are: 301, 304, 316, 304 l, 316 l, or according to the international standard is divided into: CF8, CF3, CF8M, CF3M.
There are many kinds of valve, such as butterfly valve, check valve and needle valve type, etc. , so the products are mainly stainless steel valve is stainless steel gate, stainless steel valve, stainless steel butterfly valve, stainless steel ball valve, check valve stainless steel, stainless steel filters, stainless steel plug valves, stainless steel emptying valve, stainless steel, stainless steel plunger valve, trap type stainless steel needle valve, pneumatic valve, flame arrester, stainless steel stainless steel stainless steel sanitary valves and so on.
Valve using range is limited to the material, stainless steel valves are generally used in working medium has certain corrosion resistance, although fluorine-butterfly valves and corrosion resistance, but there are still some differences.
Any kind of valve with material, working medium corrosion resistant ability is relatively limited, and affected by many factors.
If used in the process of manufacturing process and proper heat treatment process, ensuring that the corrosion resistance of the material.
Stainless steel valves shall purchase products, has now become field but domestic only a few can reach the international standard of the valve manufacturer, so the customer before purchasing stainless steel valves must provide stainless steel valve production license and the factory certificate, thus reducing the unqualified products.
Stainless steel valve is control unit in the pipeline fluid conveying system, it is used to change the channel cross-section and flow direction of medium, a diversion, globe, regulation, throttle, check, or the overflow pressure relief, and other functions.
Used for fluid control valve, from the most simple cut-off valve to extremely complex automatic control system used in all kinds of valves, its breed and specification is various, nominal size of the valve from the tiny instrument valve to size up to 10 m industrial pipe with a valve.
Stainless steel valves can be used to control water, steam, oil, gas, mud, all kinds of corrosive medium, liquid metal and radioactive fluid and other types of fluid flow, pressure valve operation can be from 0.
1000 mpa ultra-high pressure, the working temperature
Ultra-low temperature of 269 ℃ to 1430 ℃ high temperature.
Valve control can use a variety of transmission way, such as manual, worm gear, pneumatic, hydraulic, electric and electromagnetic actuator, electromagnetic -
Hydraulic, electric -
Hydraulic and gas
Hydraulic, spur gear, bevel gear drive, etc. ;
In pressure, temperature or other form under the action of sensor signals, action, according to the requirement of the reservation or not depend on the sensor signals for simple open or shut down, rely on the drive or automatic mechanism makes opening and closing valve for lifting, sliding, place or rotary movement, so as to change the size of the port in order to realize the control function.