73N-B Built-In Valve Positioner, Bottom Loading

The Model 73N-B is a bottom loading, built-in Valve Positioner which is mounted directly on the topworks of a valve. It is used on springless actuators that require a cushion load in the top of the actuator. The Model 73N-B1 is an optional configuration of the Model 73N-B. It is used on actuators that have an actuator range spring on top of the diaphragm or piston. The positioner is capable of utilizing the full force of its air supply to drive the actuator to a position called for by the control instrument. A single-axis force-balance principle of operation is incorporated in the positioner to insure accurate and stable positioning of a control valve. This makes it suitable for flow, temperature, pressure and numerous other control systems.

Specifications:

• Model: 73N-B
• Item: Built-In Valve Positioner
• Type: Bottom Loading