Check Valve/Vacuum Generator/Flow Switch – Flow Switch

AP74, Flow Switch

AP74, Flow Switch

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.

  • 6 flow trip points available, from 2 to 100 slpm
  • Body material: 316L SS secondary remelt
  • High pressure max. 3500 psig (24.1 MPa)
  • Detect excess flow by N.C. or N.O. contact output with non-wetted reed switch tripped by float with encapsulated magnet (SPDT, 3 wire/2 position)

AP74B, Flow Switch, High Flow

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