Pneumatic Air Flow Switch, 2000 FPM

Pneumatic Air Flow Switch, 2000 FPM

Code: fls-F40AA-2



Product Description

F40AA Type Pneumatic Air Flow Switch

The F40AA flow switch detects air flow or the absence of air flow by responding only to the velocity of air movement within a duct. The switch port opens on no flow and closes on air flow. It is calibrated for a maximum pneumatic input pressure of 20 psig (138 kPa).

The switch acts as an automatic operating control. Typical application include:
• Make-up air systems
• Equipment or process requiring air cooling or heating
• Exhaust systems - proves air flow to permit process

All F40 flow switches are designed for use only as operating controls. Where an operating control failure would result in personal injury and/or loss of property, it is the responsibility of the installer to add devices (safety, limit controls) or systems (alarm, supervisory systems) that protect against, or warn of, control failure.

• NEMA 1 enclosure
• Reliable normally open pneumatic valve
• 0.020 in. (0.508 mm) diameter air valve bleeds to less than 2 psig (14 kPa) when supplied with 20 psig (138 kPa) through 0.007 in. (0.18 mm) diameter restrictor.
• Easy to install (convenient barbed fitting for 1/4" O.D. plastic tubing)

The F40AA switch has a steel NEMA 1 enclosure with an integral mounting plate. A mounting plate gasket is supplied with each switch.

Replaces Part Number: F40AA-2