AP74B, Flow Switch, High Flow

The AP 74 and AP 74B are safety devices to detect excess flow in UHP gas delivery systems. The switches are available with a wide variety of trip points and configurations. An online selection guide makes choosing the proper switch for a given gas, pressure and maximum flow rate as simple as a few key strokes.

  • Bypass design suitable for high flow (BSGS) application
  • 7 flow trip points available, from 225 to 2600 slpm
  • Horizontal or vertical installation orientation is available
  • Main line 1/2 inch or 3/4 inch size available


AP74B, Flow Switch, High Flow
Configuration Options
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Installation Orientation Configuration Status
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Connection, Inlet Configuration Status
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  • Gray are not compatible with other selected option value.
  • Red conflict with another selected option value.
  • Amber are not recommended.


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