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index_04
products
 

INTRODUCTION

 

The MICROSET PNEUMATIC VALVE POSITIONER is an instrument working on force balance
principle to position the Control Valve stem in accordance to a pneumatic signal received from a
controller or manual loading station, regardless of packing box friction, actuator hysteresis or
unbalanced forces on the valve plug. Thus, the positioner ensures a reliable and accurate operation
of Control Valve.

APPLICATION:

  • NON-STANDARD CONTROLLER OUTPUT :The positioner is used to operate a valve with
    3-15 psi spring range when controller signal is other than 3 –15 psi
  • NON-STANDARD ACTUATOR SPRING RANGE :The positioner is used to operate valves
    Having non standard actuator spring ranges by controllers having the standard 3-15 psi
    Signal pressure.
  • REMOTE VALVE LOCATION :When air operated control valves are located far from control
    Instrument, positioner will reduce lag, thereby speeding up valve operation.
  • SPLIT RANGE :Some processes require the dual or sequential operation of two to three
    Control valves by a single controller with a 3-15 psi output signal range.
  • IMPROVES OVER ALL PERFORMANCE :When process lags necessitate the use of wide
    Controller proportional band, the positioner provides an exact means of making the control
    Valve responsive to infinitely small changes in controller output pressure.
 
 
request
 
TECHNICAL SPECIFICATION :
MODEL  
: MIC-VP-1 Single Acting - Direct Action.
: MIC- VP-2 Single Acting - Reverse Action.
: MIC-VP-3 Double Acting - Direct Action.
SUPPLY CONNECTION  
: 1 /4” NPT (F)
SUPPLY AIR PRESSURE
: 1.4 to 3.5 kg/cm² (Standard.)
: 5.0 kg/cm² (Maximum)
INPUT
: 0.2 – 1.0 kg/cm² (Standard)
: 0.2 – 0.6 kg/cm² (Split Range)
: 0.6 – 1.0 kg/cm² (Split Range)
HYSTERESIS  
: Within ± 1% of FS.
LINEARITY
: Within ± 1% of FS.
DEAD BAND
: Within 0.1% of FS.
STROKE SPEED (Max)  
: 10mm/sec
STROKE 
: 14 mm to 100mm
AIR CONSUMPTION : 7.0 NL / Min (Normal.)
AIR FLOW CAPACITY : 200 NL / Min (Maximum.)
MATERIAL OF CONSTRUCTION
HOUSING