My status
Manufacturer
Product search
September  23 , 2019  Monday
Home> actuator >> pneumatic actuator accessories >> ZPQ-01/02 pneumatic valve positioner
  • Introduction
  • Specifications
ZPQ-01/02 pneumatic valve positioner is auxiliary instruments used with pneumatic adjusting valve, it can receive 20~100Kpa signal of pneumatic adjusting instrument to control the travel of adjusting valve , by the action of feedback system , travel and signal change proportionally, then achieve the correct position of valve spool.
Features:
Improve the movement speed of pneumatic adjusting valve
Change the action mode of pneumatic adjusting valve
Achieve sub-process control
Can operate pneumatic adjusting valve of pressure range of all kinds of springs
Can be used with angle pneumatic adjusting valve
Structure principle
Mainly made up of shell, gas circuit-board and all major levers, bellows components and amplifier, etc.
Designed according to torque balance principle
Main technical index
Model  
ZPQ-01
ZPQ-02
Products name
pneumatic valve positioner
Air pressure MPa
0.14 0.26
0.35 0.55
Standard signal KPa
20~100
Banded signal KPa
20~60;60~100
Basic error %
≤±1
≤±1.5
Hysteresis %
≤1
≤1.5
Dead band %
≤0.4
≤0.6
air consumption NL/h
≤1500
≤3600
Travel range  
10~60
20~60
(right travel )
(right travel )
Actuator  
Pneumatic diaphragm
Piston  
Environment temperature
-25~55℃
Relative humidity  
5~100%