Reduced pressure pneumatic valve, safety valve, regulator pneumatic valve, pneumatic valve, pressure difference and different?

the reduced pressure pneumatic valve, safety valve, pneumatic valve, pressure pneumatic valve, pneumatic valve belongs to pressure is mainly the difference of function.
the reduced pressure pneumatic valve is the high pressure of medium to low pressure in the medium of equipment, the characteristics of the pneumatic valve, is under the condition of the inlet pressure changing, keep exports to the pressure and temperature in a certain range.
pneumatic valve to prevent the boiler and pressure vessel safety equipment or piping of pneumatic valve damage due to overpressure. When pressure is slightly higher than the normal working pressure, safety pneumatic valve automatically open, make the pressure drop. When pressure is slightly lower than normal working pressure, safety pneumatic valve automatically shut down, stop discharging fluid and keep sealed.
pressure pneumatic valve is mainly used in pressure situations, when the pressure is greater than the set value within the pneumatic valve slice open by timely release the pressure, the pressure reduced back to its original position, and safety of pneumatic valve difference is not big, pressure pneumatic valve used in liquid, more security pneumatic valve used in gas, more steam.
regulated pneumatic valve was keeping the medium of an area in a certain range of pressure equipment. And the difference between the reduced pressure pneumatic valve:
vacuum pneumatic valve: no matter how change, inlet pressure decrease outlet pressure to the rating, the relief effect.
regulated pneumatic valve: whatever downstream pressure and the demand for change, is to maintain a constant upstream pressure.
security pneumatic valve and pressure relief valve is two kinds of pneumatic valve type, is a special pneumatic valves. Among them, the safety of pneumatic valve belong to the safe relief device, is a special pneumatic valves, only with the pressure of work more than action, protect the system. Reduced pressure pneumatic valve belongs to the process of pneumatic valves, can make the high pressure relief logistics, to meet the demand of the system of pressure after, its working process is continuous.