Proportional Electro-Pneumatics Give Control of

1
Proportional Electro-Pneumatics Give Control of
?????????? ??? Chapter 9 Proportional
Valves
Pressure
Force
Flow
WUHAN UNIVERSITY OF TECHNOLOGY LOGISTICS ENG.
DEPT. ?????? ??????
2
Proportional Pressure
?????????? ??? Chapter 9 Proportional
Valves

• Applications
• Pneumatic braking
• Filling systems
• Tank flow control
• Fluid dispense
• Air bearings
• Blow moulding
• Leakage testing

3
Proportional Force
?????????? ??? Chapter 9 Proportional
Valves

• Applications
• Spot welding
• Web tensioning
• Clamping
• Friction welding
• Pinch roller control
• Linear force control
• Polishing

4
Proportional Flow
?????????? ??? Chapter 9 Proportional
Valves

• Applications
• Paint spray systems
• Filling systems
• Fluid dispense
• Tank flow control

5
A Wide Range of Options
?????????? ??? Chapter 9 Proportional
Valves

• Pressure up to 20bar
• Flow up to 15000 l/min
• Accuracy 0.5

6
With a Choice of Technology
?????????? ??? Chapter 9 Proportional
Valves

• Open loop control
• Closed loop control

7
Open Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Electromechanical design
• Rugged and reliable
• Suitable for many applications

8
Open Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Electromechanical design
• Rugged and reliable
• Suitable for many applications

9
Open Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Electromechanical design
• Rugged and reliable
• Suitable for many applications

10
Open Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Electromechanical design
• Rugged and reliable
• Suitable for many applications

11
Open Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Electromechanical design
• Rugged and reliable
• Suitable for many applications

12
Open Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Electromechanical design
• Rugged and reliable
• Suitable for many applications

13
Open Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Electromechanical design
• Rugged and reliable
• Suitable for many applications

14
Open Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Electromechanical design
• Rugged and reliable
• Suitable for many applications

15
Open Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Electromechanical design
• Rugged and reliable
• Suitable for many applications

16
Open Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Electromechanical design
• Rugged and reliable
• Suitable for many applications

17
Open Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Electromechanical design
• Rugged and reliable
• Suitable for many applications

18
Open Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Electromechanical design
• Rugged and reliable
• Suitable for many applications

19
VP10
?????????? ??? Chapter 9 Proportional
Valves

• Force balanced electronic regulator
• Linearity 0.35 Hysteresis 0.2
• Loop powered (two wire) version
• Intrinsically safe versions

Electronic regulator ideal for low flow
applications requiring low linearity and
hysteresis
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VP40
?????????? ??? Chapter 9 Proportional
Valves

• Direct acting poppet valve
• Forward and relief flow up to 2000 l/min
• Response time lt60 ms
• Pressure up to 20 bar

Complete family with high flow and high pressure
options
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Open Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Benefits
• Economic
• Simple uncomplicated design
• Proven, Rugged and Reliable
• Reversible Action

22
Closed Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Internal pressure sensor
• Active closed loop control
• Setpoint or analogue setpoint
• Suitable for any application
• Pressure feedback signal
• Comparator output signal

23
Closed Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Internal pressure sensor
• Active closed loop control
• Setpoint or analogue setpoint
• Suitable for any application
• Pressure feedback signal
• Comparator output signal

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Closed Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Internal pressure sensor
• Active closed loop control
• Setpoint or analogue setpoint
• Suitable for any application
• Pressure feedback signal
• Comparator output signal

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Closed Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Internal pressure sensor
• Active closed loop control
• Setpoint or analogue setpoint
• Suitable for any application
• Pressure feedback signal
• Comparator output signal

26
Closed Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Internal pressure sensor
• Active closed loop control
• Setpoint or analogue setpoint
• Suitable for any application
• Pressure feedback signal
• Comparator output signal

27
Closed Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Internal pressure sensor
• Active closed loop control
• Setpoint or analogue setpoint
• Suitable for any application
• Pressure feedback signal
• Comparator output signal

28
Closed Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Internal pressure sensor
• Active closed loop control
• Setpoint or analogue setpoint
• Suitable for any application
• Pressure feedback signal
• Comparator output signal

29
Closed Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Internal pressure sensor
• Active closed loop control
• Setpoint or analogue setpoint
• Suitable for any application
• Pressure feedback signal
• Comparator output signal

30
Closed Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Internal pressure sensor
• Active closed loop control
• Setpoint or analogue setpoint
• Suitable for any application
• Pressure feedback signal
• Comparator output signal

31
Closed Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Internal pressure sensor
• Active closed loop control
• Setpoint or analogue setpoint
• Suitable for any application
• Pressure feedback signal
• Comparator output signal

32
Closed Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Internal pressure sensor
• Active closed loop control
• Setpoint or analogue setpoint
• Suitable for any application
• Pressure feedback signal
• Comparator output signal

33
Closed Loop Control
?????????? ??? Chapter 9 Proportional
Valves

• Internal pressure sensor
• Active closed loop control
• Setpoint or analogue setpoint
• Suitable for any application
• Pressure feedback signal
• Comparator output signal

34
?????????? ??? Chapter 9 Proportional
Valves
The Ultimate FamilyVP21
The VP21 family of proportional poppet valves
driven by proportional solenoids

• air consumption is minimal

• reliable

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VP21
?????????? ??? Chapter 9 Proportional
Valves

• Large range of flow up to 15000 l/min
• Pressure up to 16 bar
• Port size to G3/4
• Analogue or digital setpoint
• Proportional feedback signal and / or setpoint
  reached signal

The ultimate family of proportional valves with
an exceptional range of options
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VP22
?????????? ??? Chapter 9 Proportional
Valves

• Poppet valve
• Fast response
• Flow up to 300 l/min
• Analogue or digital setpoint
• Proportional feedback signal and / or setpoint
  reached signal

Direct acting proportional valve for high speed,
low flow applications
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The Next GenerationVP50
?????????? ??? Chapter 9 Proportional
Valves
The VP50 is an air piloted proportional valve
incorporating
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VP50
?????????? ??? Chapter 9 Proportional
Valves

• Maximum output pressure 10 bar
• Response time lt0.1 sec 10-90
• Flow 1400 l/min
• Proportional feedback signal

Air piloted proportional spool valve suitable
for most applications
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Closed Loop Control
?????????? ??? Chapter 9 Proportional
Valves
Benefits

• Performance
• Long term accuracy
• Vibration immunity
• User features
• Proportional feedback
• Gain control
• User benefits
• Better system stability
• Closer control
• Service friendly

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Summary
?????????? ??? Chapter 9 Proportional
Valves

• Wide range of options for a wide range
• of applications with your choice of technology

• VP10 Linearity 0.35 Hysteresis 0.2

• VP40 Pressure up to 20 bar

• VP21 Large range of flow upto 15000 l/min

• VP22 Analogue or digital feedback

• VP50 Response time lt0.1 sec 10-90

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Proportional Valve
?????????? ??? Chapter 9 Proportional
Valves

• Wide range of options for a
• Wide range of applications
• With your choice of Technology

42
?????????? ??? Chapter 9 Proportional
Valves
End