Principle of system operation for stable and accurate pressure :
Pressure from the boiler, or on the steam pipeline combined with equipment such as pressure transmitter (pressure transmitters), pressure controller (PID Controller), linear valve controlled by pneumatic (Pneumatic control valve). Normally we should us e the Pl or PD mode of the controller to make the adjustment simple but effective as desired. Specifications of devices
Pressure transmitter (pressure sensor)
- Scale:0-6 bar,0-10 bar,0-16bar,0-25bar( depending on the pressure used, we will choose the scale)
- Output : 4-20 mA
- Mechanical connection : G1/2″,or G1/4″
Pressure controller (PID pressure controller)
- Input : 4/20 mA
- Output : 4-20 mA
- 24 VDC or 220 vac power supply (depending on demand)
- Size : 48x48mm, or 48x96mm,96x96mm( normally use size 96×96 mm)
Pneumatic control valve
- Input : 4/20 mA
- size : DN20,DN25,….DN250mm (depending on usage needs to choose)
- Pressure : PN16,PN25,PN40 (depending on usage needs to choose)
- Closing pressure (closing pressure) : 5 bar,9bar,20bar,… depending on the working pressure on the pipeline to the value
Application of the principle of stabilizing saturated vapor pressure We usually apply this to factories as follows
In factories such as food, alcohol, textiles, animal feed, seafood processing,etc.