Magnetrol MODULEVELPNEUMATICAPMLLC,APM Pneumatic Modulevel®

Features

• Standard models handle service temperatures from -150 to +700 °F (-101 to +371 °C) and pressure to 4047 PSIG (279 Bar).
• Stable output signal is unaffected by surface turbulence. Prevents control valve “hunting” and extends valve life.
• Controller head may be removed without disturbing pressure boundary. Permits service or replacement without shutdown of process.
• Simple calibration prior to installation, by substituting weights for displacer or by controller head calibration with displacer.
• Accurate output signal provided over a wide specific gravity range.
• Controller head rotates 360°, simplifies pneumatic piping hookup.
• 316 SS displacer and trim. Inconel & 316SS range springs. (Consult factory for Hastelloy displacer.)
• Easily calibrated without moving tank liquid level, for reduced installation time and cost.
• Pilot relay provides a 4 to 1 amplification of pilot pressure signal to speed value response
• Built-in visual level indicator is independent of air supply.
• Optional pneumatic-tocurrent interface transducer for use in electronic control applications.
• Optional proportional plus integral control.
• Optional differential gap (on-off) control.
• Optional High-Low elect r o n i c a l a r m s i g n a l provides inexpensive backup alarm.
• Fabricated construction.

Applications

Modulevel pneumatic liquid level controls are widely used in utility power generation, chemical and petroleum processing operations, such as:

• Steam generator feedwater heater regulation
• Vent gas scrubber level control
• Fractionating column level transmitter
• Drip pot condensate level control
• Ethanolamine level transmitter
• Flash tank level transmitter
• Boiler level control