Principle, structure

The built-in plunger is connected to a precision spring. When the pressure changes, the spring's expansion and contraction amount changes accordingly. When the pressure reaches the set value, it will trigger the preset mechanical structure and send out a switch signal. The controller adopts a leak free piston sensor.

application

Gas liquid dual-use type, can be used for compressed air containing oil mist and other non corrosive oil mist gases and hydraulic oils, water oil emulsions, and neutral liquid media with good lubrication performance for pressure sensor materials.

Technical Parameter

			Common								Explosion proof type
Work viscosity			<1*10-3㎡/s								<1*10-3㎡/s
Switching element			microswitch								Sealed switch
Explosion proof grade											ExedⅡCT4～T6
degrees of protection provided by enclosure			Groove sealing ring IP54: O-ring type IP54 (DIN40050)								Groove sealing ring IP54: O-ring type IP54 (DIN40050)
ambient temperature			﹣20℃～50℃								﹣20℃～50℃
medium temperature			0～120℃								0～120℃
Installation position											Pressure vertically downwards
Seismic performance			505/7D：40m/s2; 505/7DK:20㎡/s2								Max.20m/s2
Repeatability error			≤2.5%								≤2.5%
CONTACT CAPACITY			AC220V, 6A (resistive)								DC250V, 0.25 (resistive), 60Wmax
											AC250V, 5A (resistive), 1250VAmax

dimension

Wiring diagram

The working process of single pole double throw micro switch; Connect terminals 1-3 when the pressure rises to the upper switching value; Disconnect when the pressure at terminal 1-2 rises to the upper switching value.

specifications

Adjustable range of setting value Mpa

Switching difference not greater than

Maximum allowable pressure * Mpa

Switching frequency/minute

Pressure sensor material

Internal thread of interface

Weight kg

Lower limit of set value range Mpa

Upper limit of set value range Mpa

casing

Pressure sensor material

piston

0.3…4

0.5

0.9

30

20

brass

Ding Qing rubber groove sealing ring**

steel

G1/4″

0.8

0.5…6.3

0.6

1.3

G1/4″

0.5…10

0.6

1.6

G1/4″

0.5…16

0.7

1.9

G1/4″

1…23

1

2.5

30

Ding Qing rubber belt "O" sealing ring**

G1/4″

1…40

1.2

2.8

60

G1/4″

Switching difference adjustable

Adjustable range of setting value Mpa

Switching difference not greater than

Maximum allowable pressure * Mpa

Switching frequency * Mpa

Pressure sensor material

Internal thread of interface

Weight kg

Lower limit of set value range Mpa

Upper limit of set value range Mpa

casing

sealing ring

piston

0.3…4

0.8…2.5

1.3…2.5

30

20

brass

Ding Qing rubber groove sealing ring**

steel

G1/4″

0.85

0.5…6.3

1…4

1.6..4

G1/4″

0.5…10

1.1…8

1.6…8

G1/4″

0.5…16

1.3…12

2.2…12

G1/4″

1…23

1.4…12

2.8…12

30

Ding Qing rubber belt "O" sealing ring**

G1/4″

1…40

2…30

4…30

60

G1/4″

Switching difference is not adjustable (small switching difference)

Adjustable range of setting value Mpa

Switching difference not greater than

Maximum allowable pressure * Mpa

Switching frequency * Mpa

Pressure sensor material

Internal thread of interface

Weight kg

Lower limit of set value range Mpa

Upper limit of set value range Mpa

casing

sealing ring

piston

0.3…4

0.8…2.5

1.3…2.5

30

20

brass

Ding Qing rubber groove sealing ring**

steel

G1/4″

0.8

0.5…6.3

1…4

1.6..4

G1/4″

0.5…10

1.1…8

1.6…8

G1/4″

0.5…16

1.3…12

2.2…12

G1/4″

1…23

1.4…12

2.8…12

30

Ding Qing rubber belt "O" sealing ring**

G1/4″

1…40

2…30

4…30

60

G1/4″

Model Selection Table

KBP50-	Thin film/plunger pressure switch
	Adjustable range (unit: Mpa)
		Adjustable range: 0.3... 4
		Adjustable range: 0.5... 6.3
		Adjustable range: 0.5... 10
		Adjustable range: 0.5... 16
		Adjustable range: 1... 23
		Adjustable range: 1... 40
		Explosion proof level
			No explosion-proof rating
			Explosion proof level: Exced Ⅱ CT4
			Explosion proof level: Exced Ⅱ CT6
			material
				Yellow Brass
				Stainless steel 1.4301 (304)
				Interface thread
					Interface thread: M20 * 1.5
					Customized special thread
					Interface thread
						Interface thread: External thread
The selection form for appeal does not include selection codes. If you need a code, please contact us or fill in your information