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Solenoid Operated Directional Valve DG4V-3-70 Design 1. Product introduction and target applications DG solenoid valves are used in hydraulic circuits to start, stop and direct flow. With electronics on board, the DG4V3-Z-70 enables new machine control solutions, eliminating solenoid power shifting in the controls cabinet. The DG4V3 – 70 series valve takes advantage of contemporary electronics and wiring practices applied in automation solutions world wide. Using industry standard M12 connectors and with the optional on board switching amplifier the – 70 series valve offers OEMs and users opportunity...

Model Code 1 Directional Control Valve 4 – Solenoid operated, V – Pressure rating 350 bar (5000 psi) on P, A & B ports 3 – ISO4401 Size 03 Spool Type See “Functional Symbols” Section on page 4 P – Plain overrides in solenoid ends only (standard) M – Electrical options and feature H – Waterproof override in solenoid ends only W – Twist and lock manual override (not available in “F6” models) Z – No overrides in either end Spool/Spring Arrangement Single solenoid models A – Spring offset, Right hand build (standard) AL – Spring offset, Left hand build (optional) B – Spring centered, Right hand build...

Double solenoid valves, Sol. B P T Sol. two position, detented A Double solenoid A valves, B Functional Symbols Single solenoid valve P Sol. B solenoid at port A en A spring centered Spool Options Double solenoid valves, two position, detented Double solenoidT valves, P Sol. B Sol. A spring centered Transient condition only Single solenoid valves, A B solenoid at port A end Single solenoid valv solenoid at port B en The valve function schematics apply to both B U.S. and European A valves. A B A The valve function schematics apply to both U. DG4V-3(S)-*N(V) Double solenoid valves, two position,...

Operating Data Solenoid Identified to US and European Standards Feature DG4V-3 Pressure Limits P, A and B ports Flow rating Relative duty factor Type of protection: ISO 4400 coils with plug fitted correctly Coil winding Coil encapsulation Permissable voltage fluctuation: Maximum Coil Designation Typical response times at 100% rated volts measured from application/removal of voltage to full spool displacement of “2C” spool at: Flow rate P-A, B-T 40 l/min (10.6 USgpm) 25 l/min (6.6 USgpm) 25 l/min (6.6 USgpm) Pressure Power consumption, DC solenoids at rated voltage and 20 C (68 F). Full power...

Performance Data Typical with mineral oil at 36 cSt (168.6 SUS) and a specific gravity of 0.87. Maximum flow rates Performance based on full power solenoid coils warm and operating at 90% rated voltage. HL Type Solenoid- 18W- (Optional) 980 l/min 12 15 Flow rate 21 USgpm l/min 9 12 Flow rate 21 USgpm HM Type Solenoid- 10W- (Optional) HM Type Solenoid- 10W- (Optional) 5000

Pressure Drop T Curve for spool type 6: not Pressure drops in offset positions recommended for flows in excess except where otherwise indicated Code_Spool Positions_PA_P-B_AT_B-T_P-T_A-B For other viscosities, pressure drops approximate to: A change to another specific gravity will yield an approximately proportional change in pressure drop. The specific gravity of a fluid may be obtained from its producer. Fire resistant fluids usually have higher specific

Electrical Specifications LED is lit when there is power to the coil. to EN 61326 Solenoid Indication Standard EMC Qualifications A-Option Direct connected coil shown to the right. Protection network for inductive loads protects the (machine control) switch from high voltages and speeds the de-energizing of the solenoid. D Z-Option Switching Amplifier on Board shown to the right. The circuit on the Z-option is reverse polarity protected. The output is short circuit protected. In case of a shorted solenoid, the amplifier will remove the voltage from it. When the short is removed the amplifier...

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