The APM series of Pneumatic Modulevels are displacer actuated level controls that provide output signals in direct proportion to changes in liquid level.
Literature
Additional Tools:
Measurement Principle:
As the buoyancy force on a displacer changes with liquid level movement, a range spring supporting the displacer extends or compresses, moving a magnetic ball. A magnet carriage within the controller head follows the ball producing a change in output.
Features:
Highly stable output signal is unaffected by surface turbulence
Visual indicator is independent of air supply
Chambered or top-mounted configurations
Chambered models include try cock and gauge glass connections
Suitable up to 300 pounds WSP
Applications:
Feedwater heaters
Steam drums
Deaerators
Hot wells
Options:
Electric high and low limit switches
Direct or reverse acting proportional output
Pneumatic to current interface transducer for electronic control
