Pressure switches DV7.2

With two adjustable change-over switch

Easy and precise adjustable hydromechanical pressure switch based on the piston-spring principle. When the oil pressure rises to the set value, the built-in microswitch is actuated - when the pressure drops, the switch is released. 7 pressure ranges for optimum adaptation to any operating pressure.

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[Translate to EN:] Typ DV7.2
Design Advantages
Robust hydromechanical principle Easy adjustability
Seven different pressure ranges available Compact construction guide
Switch-on and switch-off pressures can be set individually Can be rotated 360° under pressure
Direct pressure display High IP protection class
Very high operational safety No power supply necessary
Any supply voltages Insensitive to EMV
Appliance plug can be rotated by 3 x 90° Insensitive to hydraulic overload
Adjustment of both switching points via adjusting screws Long service life
Robust construction  
Any mounting position  

Applications

  • Railway technology
  • In power plants

Technical Data

Hydraulic fluid Mineral oil according to DIN 51524(other media on request)
Fluid temperature range -20 to 80 °C
Ambient temperature range -30 to 50 °C
Viscosity range 5 bis 400 mm²/s
DIN appliance plug connection (3P + GND) According to EN 175301-803
Mounting position Arbitrarily
Appliance plug Rotatable about 3 x 90°
Switching hysteresis of the scale end value 2 - 10%
Repeat accuracy of the scale value 1%
Degree of protection IP 54
Class of insulation I
Accuracy class 4.0
Materials housing: aluminium anodized
  front scale: Polycarbonat

Technical data

TypePressure [bar]Overload max. [bar]Part No.
DV7.70.29007 70 150 3646012
DV7.100.29010 100 300 3682681
DV7.160.29016 160 300 3674639
DV7.250.29025 250 1200 3665347
DV7.400.29040 400 1200 3661924
DV7.600.29060 600 1200 3682754
DV7.1000.29100 1000 1200 3658057