Classified by purpose and role
The cut-off valve is mainly used to cut off or turn on the medium flow. Including gate valve, globe valve, diaphragm valve, ball valve, plug valve, disc valve, plunger valve, ball valve, needle type instrument valve.
Regulating valves are mainly used to regulate the flow rate, pressure, etc. of the medium. Including regulating valves, throttle valves, pressure reducing valves, etc.
Check valves are used to prevent media from flowing back. Includes check valves in a variety of configurations.
Diverter valves are used to separate, dispense or mix media. It includes distribution valves and traps of various structures.
Safety valves are used for safety protection when the media is overpressured. Includes various types of safety valves.
Classified by main parameters
(1) Classification by pressure
The vacuum valve operates at a lower pressure than the standard atmospheric pressure valve.
Low pressure valve nominal pressure PN less than 1.6MPa valve.
Medium pressure valve nominal pressure PN2.5 ~ 6.4MPa valve.
High pressure valve nominal pressure PN10.0~80.0MPa valve.
Ultra-high pressure valve with a nominal pressure PN greater than 100 MPa.
(2) Classification by medium temperature
High temperature valve t is greater than 450C valve.
The medium temperature valve 120C is smaller than the valve whose t is less than 450C.
The normal temperature valve -40C is smaller than the valve with t less than 120C.
The cryogenic valve -100C is smaller than the valve with t less than -40C.
Ultra-low temperature valve t is less than -100C valve.
(3) Classification by valve body material
Non-metallic valve: such as ceramic valves, glass steel valves, plastic valves.
Metal material valves: such as copper alloy valves, aluminum alloy valves, lead alloy valves, titanium alloy valves, Monel valves
Cast iron valves, carbon steel valves, cast steel valves, low alloy steel valves, high alloy steel valves.
Metal valve body lining valves: such as lead-lined valves, lined plastic valves, lining enamel valves.
General classification
This classification method is divided into principles according to principle, function and structure. It is a commonly used classification method for international and domestic Zui. General opening valve, globe valve, throttle valve, instrument valve, plunger valve, diaphragm valve, plug valve, ball valve, butterfly valve, check valve, pressure reducing valve, safety valve, steam trap, regulating valve, bottom valve, filter , sewage valve, etc.
CAD/CAM dental systems refers to the software used to both design and mill dental prosthetics. CAD (Computer Aided Design) includes digitally scanning, while CAM (Computer Aided Manufacturing) is the process of sending final models to the output device and manufacturing them through milling or 3D printing. DGSHAPE devices and software are specifically engineered to perfectly fit into this digital workflow.
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