Valve Monitor

Description

Convalve valve indicator 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  clearly 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

Valve monitors (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