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