Position Indicator

Description

Convalve position indicator (limit switch boxes) is a rotary position device used to confirm the valve position when mounted to a pneumatic actuator. The visual indicator on top of the device can display the valve position for local detection. Mechanical limit switches provide an electrical signal output to PLC’s or other devices to confirm both the open and closed valve position

Features

• Multiview visual valve position indicator
• Dual limit switches for remote valve position confirmation
• Standard Namur VDI/VDE-3845 mounting
• Weatherproof Type 4, Nema 4X and IP67 construction
• Polyester powder coated aluminum housing
• Universal mounting bracket included
• Exproof models are available ( API 400, API 500 )
• Proximity sensor (API 220)

Applications

Position indicators (limit switch boxes) are rotary position devices used for both local and remote indication of valve position. Indicators are typically mounted to the top of standard pneumatic rotary actuators via the standard Namur VDI/VDE-3845 mounting pad.

Operation

Output shaft from the air actuator rotates 90º  turning the input shaft of the monitor and  moving the visual indicator from closed to  open (reverses to close). In addition, limit  switches provide a dry contact output signal  in both the open and closed position. This  signal is used to remotely confirm the valve  position.

Specifications

Construction