Pressure switches type DG - HAWE Hydraulik - #1

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Hydraulic accessories Pressure switches type DG Electro-hydraulic pressure switches are devices, which, when set under pressure close or open electrical contacts. They are widely used in applications where it is intended that, once a pre-set pressure is achieved and exceeded, an electrical switching command or signal should be triggered for further working cycles. Many different versions (with pressure setting on a dial, with main and secondary switch, screw-on pressure switches) enable their use in many applications. There is a design related difference of 8 ... 20 % between the upper switching point and the lower switching point. Only the electronic pressure switch type DG 5 E gives provision to select two independant switch points and to set the hysteresis. Type DT is an analogous pressure sensor. Nomenclature: Design: pmax: pmax: Spring loaded pressure switch (piston type) Electr. pressure switch Manifold mounting version Screw-in version Version for pipe connection 0 ... 700 bar 0 ... 1000 bar 4-4 2009 4 Basic types and general parameters Brief description Adjustment via turn-knob at the dial Version with two pressure switches Main switch: Adjustment via turn-knob at the dial Secondary switch: Adjustment via set screw Compact design for manifold mounting Adjustment via set screw Electronic pressure switch with two switch points Analogous pressure sensor Adjustable pressure pmax (bar) 1) 20 ... 600 20 ... 600 and 20 ... 180 4 ... 700 0 ... 600 0 ... 400 0 ... 1000 0 ... 600 Connection thread (BSPP) G 1/2 or G 1/4 A G 1/2 or G 1/4 A G 1/4 or G 1/4 A 2) G 1/4 A G 1/4 A or M 5 G 1/4 A Basic type and size DG 1 R DG 8 DG 3.. DG 5 E DG 6. DT 11 DT 2 Symbol 1) The max. operation pressure of 700 bar is not influenced by the max. set pressure 2) For versions with adapter only