Model 12800 Pneumatic Liquid Level Control

Variable Displacement Level Controllers

The 12800 Series is a highly reliable torque tube type liquid level transmitter based on field-proven displacement technology using Archimedes' principle of buoyancy. The device includes a displacer which is connected to a torque tube assembly which provides a simple and accurate method of transferring motion from the displacer to a pneumatic transmitter and/or controller mechanism. Level ranges from a few inches (mm) up to several feet (m) can be obtained by varying displacer area and length.

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Key Features

The 12800 Series is available with various end connection sizes as well as types and pressure classes and flexible mounting configurations to meet a wide range of applications. It is available with a standard pneumatic controller that can be configured with various control settings for liquid level control optimization. The 12800 Series can also be configured with a duplex controller for applications requiring dual output signals from a single level control system.

Benefits

The 12800 Series provides excellent flexibility along with field-proven and reliable performance for pneumatic level control applications. Displacer technology is not subject to any potential "echo" effects typically encountered with radar-type level control devices and is better suited to meet harsh industrial environments. It provides end users with excellent operating performance over a wide range of applications. The flexibility inherent in using a common platform allows customers to minimize inventory and overall maintenance costs.

Selection Criteria

The 12800 Series is an excellent choice for liquid level measurement and control, liquid-liquid interface measurement and control applications. Displacer level technology is field-proven and reliable and the preferred solution for liquid interface applications. The 12800 Series is also an excellent choice for more severe operating environments, including high temperature, high pressure and NACE service.

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