Products

You are here: Home > Products > HVAC Differential Pressure Switch

LF32 Differential Pressure Switches (20-5000Pa)
Product Details

The LF32 is an adjustable differential pressure switch capable of detecting miniscule changes in pressure do to its size and proven design. The switch set point or switching point can be field adjustable with out the need of a manometer by simply using the adjustment knob and the built in calibrated visual scale. This switch is equip with a clear cover that not only protects the adjustment knob to be move involuntary but also provides class IP54 protection.


The LF32 Air Sensing Switch is primarily used in heating and ventilation application where the need of accurately monitoring air flow in air duct systems, air filters, flaps are critical.


Some specific applications of the LF32 Air Handling Unit Pressure Switch are :

Controlling fire protection flaps in ventilation ducts

Monitoring air filters in cooling and heating systems

Monitoring cooling systems of industrial electronic circuits,

Monitoring positive pressure on pressurized rooms

Monitoring air flow on fan heaters (over heating protection)

Frost protection for heat exchanger


The LF32 Adjustable differential pressure switch can also be used as an adjustable pressure switch and adjustable vacuum switch as well.


Series No.

LF32

Medium

Air, non-combustible and non-aggressive gasses

Max Operating Pressure

10 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) @ 250V

Terminals

6.4 mm(0.25") copper alloy

Connection

6.0mmDia. for tube connection

Approval

UL, CE


Model

Pressure Range

Differential

Tolerance

LF32-02

20 ~ 200 Pa

10 Pa

+/-15%

LF32-03

30 ~300 Pa

10 Pa

+/-15%

LF32-04

40 ~400 Pa

20 Pa

+/-15%

LF32-05

50 ~ 500 Pa

20 Pa

+/-15%

LF32-10

200 ~ 1000 Pa

100 Pa

+/-15%

LF32-25

500 ~ 2500 Pa

150 Pa

+/-15%

LF32-50

1000 ~5000 Pa

250 Pa

+/-15%


Conversion: 1"W.C.= 1 inch/H2O=249Pa 1mbar=100Pa


Copyright © 2017 LEFOO Industrial Co.,Ltd | Html Map | XML