Manufacturer of Pressure Gauge and Thermometer from Ningbo China
Rising Instrument Co., Ltd.
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Products > Pressure Switch

Pressure Switch

2.Preeure switch for compressor & pump
d. Differential pressure switch for air compress
 

LF10

 
LF10-1H 
LF10-4H 
The LF10 pressure switch is used to regulate the tank pressure between two preset values on  small (up to 175psi) electrically driven air compressors. It is available with an unloader valve, which prevents compressors from starting under load, and an auto-off disconnect lever for manual cut off the compressor. A four port manifold style is available which provides a means for easy mounting of valves and gauges.
  • Corrosion Resistant and Non Metallic Cover

  • No Wire Looping

  • Visible Contact

  •  No Drift Pressure Setting

  •  Captive Cover Screw

  •  Ample Wiring Room

  •  2 Ground Screw

  •  Easy to Adjust

  •  Automatic Unloader Valve Available

  •  Pulsation Dampener Standard

 

 MODEL

Min ON  (Cut-In)PSI

Max Off
(Cut-Out) PSI

Differential
   PSI

Factory Setting PSI

Electrical Rating

Pipe Fittings

Contact Arrangement

120VAC

240VAC

LF10-1H1

  25

  100

  20-30

50-80

20A

12A

1/4" Male or Female NPT
NC

LF10-1H2

  35

  150

  30-40

85-115

20A

12A
1/4" Male or Female NPT
NC

LF10-1H3

  50

 175

  35-55

110-150

20A

12A
1/4" Male or Female NPT
NC
1Kgf/cm 2 = 14.2PSI , 1bar = 14.5PSI

MODEL

Min ON  (Cut-In)PSI

Max Off
(Cut-Out) PSI

Differential
   PSI

Factory Setting PSI

Electrical Rating

Pipe Fittings

Contact Arrangement

120VAC

240VAC

LF10-4H1

  25

  100

  20-30

50-80

20A

12A

1/4" Female NPT (4 Port)
NC

LF10-4H2

  35

  150

  30-40

85-115

20A

12A
1/4" Female NPT (4 Port)
NC

LF10-4H3

  50

 175

  35-55

110-150

20A

12A
1/4" Female NPT (4 Port)
NC
 

 
LF10-L
The LF10-L pressure switch is a pressure-operated electric switch for use in regulating the tank pressure between two preset values on electrically driven air compressors. It is available with an unloader valve, which prevents compressors from starting under load, and an On-Off button for manual cut off the compressor. A four port manifold style is available which provides a means for easy mounting of valves and gauges.
 
Specification

MODEL

LF10-L1H

LF10-L4H

Media

Air

Air

Operating Pressure Range

0.5~1.2Mpa

0.5~1.2Mpa

Differential Pressure

0.2Mpa

0.2Mpa

Factory Setting

0.6~0.8 Mpa

0.6~0.8 Mpa

Manufacture Deviation

0.05Mpa

0.05Mpa

Operating Temperature Range

-30~55 ?

-30 ~55 ?

Electrical Rating

240V, 20A, 50Hz

240V, 20A, 50Hz

Contact Arrangement

Normal On

Normal On

Port

one port

four ports

Pipe Fittings

G1/4, G3/8 Female

G1/4, G3/8 Female

1Mpa =10.2 Kgf/cm 2 , Kgf/cm 2 = 14.2PSI , 1bar = 14.5PSI
 

 
LF17-1H
 The rugged LF17 pressure switch is designed for the demanding requirements of lager, heavy duty commercial air compressors (up to 250 psi). The sturdy painted steel case and cover resists the harsh conditions encountered in industrial applications. This style is also available with an unloader valve to prevent the compressor from starting under load.
  • Sturdy Stamped Steel Case & Cover

  •  Visible Contact

  •  No Drift Pressure Setting

  •  Captive Cover nut

  •  Ample Wiring Room

  •  2 Ground Screw

  •  Easy to Adjust

  •  Automatic Unloader Valve Available

  •  Pulsation Dampener Standard

  •  5HP Heavy Duty Rating

  •  250 PSI Max

 

 MODEL

Min ON  (Cut-In)PSI

Max Off
(Cut-Out) PSI

Differential
   PSI

Factory Setting PSI

Electrical Rating

Pipe Fittings

Contact Arrangement

120VAC

240VAC

LF17

 
40
 
250

  25-60

145-175

24A

12A

1/4", 3/8" Male or Female NPT

NC

LF17-S

  15

  60

  7-15

30-40

24A

12A

1/4", 3/8" Male or Female NPT

NC
1Kgf/cm 2 = 14.2PSI , 1Bar = 14.5PSI
 









 
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