HAWE Pressure Switch DG 20 MS - OBSOLETE
OBSOLETE - Superseded by HAWE Pressure Switch DG 365-1/4. See Related Products for successor item(s).
- OBSOLETE: See Related Products, below, for successor item(s)
- Superseded by:
- Pressure Range: 10-70 Bar
- Design: Spring loaded piston type pressure switch, zero leakage
- Temperature: Ambient: approx. -40...+80å¡C
- Pressure fluid: Hydraulic fluid acc. to DIN 51524
- Viscosity range: min. approx. 4; max. approx. 1500 mm2/sec
- Optimal operation range: approx. 10...500 mm2/sec
- Superseded by HAWE Pressure Switch DG 365-1/4
More Information
| Description | They are used to issue an electrical switching command or signal for further operations when a predefined pressure value is reached. Different versions (with pressure setting on an adjusting knob, main and secondary switch, screw-on pressure switch) enable their use in a wide range of applications. A design-related difference (hysteresis) of 8... 20% is to be expected between the upper and lower switching point in piston-type pressure switches. In contrast to this, the type DG5E and DG6 electronic pressure switches provide the option to select two independent pressure switching points and/or program or adjust the hysteresis. Type DT is an analogous pressure sensor. Electro-hydraulic pressure switches are devices which close or open electrical contacts when pressurized (DIN ISO 1219-1). They are usually used for all applications where a electrical signal should be triggered whenever the set pressure is achieved or exceeded. This signal may be utilized to start a subsequent operation cycle (operation of a solenoid actuated directional valve) or to stop an operation cycle (cut-off of the pump drive, idle position of a solenoid actuated directional valve). |
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