ARO Pressure Switch

ARO Pressure Switch

ARO Pressure Switch

Features :

  • Allows for the sensing of low and high pressure thresholds
  • Designed to be used with the manifold block
  • 1/8'' NPT
  • 2 year warranty

Materials of Construction :

  • Bracket: Zinc
  • O-ring: Nitrile
  • Body: Nylon

Product Description :


LF32 switch is capable to sense tiny pressure change and widely used to control the flue of aerator, to monitor fan and air conditioner. It is also suitable for over heating protection and frost protection in industrial cooling system. Due to its outstanding design, the setpoint can be adjust visually.

Media :


Air, non-combustible and non-aggressive gasses

Max Operating Pressure :


5 kPa

Mounting position :


Diaphragm in any vertical plane

Degree of protection :


IP54 (with cover)

Operating Temperature :


-40 C to 85 C

Contact Arrangement :


SPST or SPDT

Electrical Rating :


Resistance: Initial:400 milliohms.

1.5A (0.4A) @ 250Vac250Vac

Terminals :


6.4 mm(0.25") copper alloy

Connection :


6.0mm Dia. For tube connection


Pressure Range Differential Tolerance
20 ~ 200 Pa 10 Pa +/-15%
30 ~300 Pa 10 Pa +/-15%
40 ~400 Pa 20 Pa +/-15%
50 ~500 Pa 20 Pa +/-15%
200 ~ 1000 Pa 100 Pa +/-15%
500 ~ 2500 Pa 150 Pa +/-15%
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