Directional Control Valve

Transcription

1 Characteristics The NG6 directional control valve series D1VW provides high functional limits up to 8 l/min in combination with a very low, energy-saving pressure drop. wide variety of spool options allows to design an unlimited number of hydraulic circuits. Versions with 8 watt coils, position control, tex approval, surface protection and connector variants are shown in the following chapters. Technical data General Design Directional spool valve ctuation Solenoid Nominal size DIN NG6 / CETOP 3 / NFP D3 Mounting interface DIN / ISO 441 / CETOP RP 11-H / NFP D3 Mounting position unrestricted, preferably horizontal mbient temperature [ C] MTTF D value [years] 15 Weight [kg] 1.5 (1 solenoid),.1 ( solenoids) Hydraulic Max. operating pressure [bar] P,, : 35; T: 1 (DC), T: 14 (C) Fluid Hydraulic oil in accordance with DIN 5154 / 5155 Fluid temperature [ C] Viscosity permitted [cst] / [mm²/s] Viscosity recommended [cst] / [mm²/s] Filtration ISO 446 (1999); 18/16/13 (meet NS 1638: 7) Flow max. [l/min] 8 (see shift limits) Leakage at 5 bar [ml/min] Up to 1 per flow path, depending on spool, up to 15 per flow path for spool type Static / Dynamic Step response see table response time Electrical characteristics Duty ratio 1% ED; CUTION: coil temperature up to 15 C possible Max. switching frequency [1/h] 15 (not for soft shift) Protection class IP 65 in accordance with EN 659 (plugged and mounted) K J U G Y T Supply voltage [V] 11V at 5Hz/ 3V at 5Hz/ 1 V = 4 V = 98 V = 5 V = 1V at 6Hz 4V at 6Hz Tolerance supply voltage [%] ±1 ±1 ±1 ±1 ±5 ±5 Current consumption hold [] /.55.3 /.7 Current consumption in rush [] / / 1. Power consumption hold 3.7 W 31 W 31.9 W 3. W 7 / 7 V 7 / 7 V Power consumption in rush 3.7 W 31 W 31.9 W 3. W 8 / 9 V 8 / 9 V Solenoid connection Connector as per EN , solenoid identification as per ISO 9461 (code W). Wiring min. [mm²] 3 x 1.5 recommended Wiring length max. [m] 5 recommended With electrical connections the protective conductor (PE W) must be connected according to the relevant regulations. D1VW_UK.INDD CM_

2 Ordering D 1 V W Directional control valve Size DIN NG6 CETOP 3 NFP D3 3-chamber valve Wet pin armature solenoid, threaded in tube Spool type Spool position Seals 3 position spools Spool type a b 1 N V Seals NR FPM ) C Standard 3 position spools Spool position Spool type 8,9, 4, 5 3 positions. Spring offset in position. Operated in position a or b. 9 1) 1 11 E Operated in position a. Operated in position b. positions. Spring offset in position F Spring offset in position b. Spring offset in position a. positions. Operated in position K Operated in position b. Operated in position a. positions. Spring offset in position M Spring offset in position a. Spring offset in position b. positions. Operated in position ) 5 1) position spools Spool type a b a b P D position spools Standard Spool type 83 T H a b P Spool position T positions. Spring offset in position b. Operated in position a. positions. Operated in position a or b. No center or offset position. positions. Spring offset in position a. Operated in position b ) ) Consider specific spool position. D1VW_UK.INDD CM_

3 Ordering W Solenoid voltage Solenoid connector as per EN , without plug (other connectors are available for D1MW Series) Solenoid option Design series (not required for ordering) Solenoid option omit Standard solenoid with manual override T without manual override S 3) Soft shift orifice size.5 mm. S3 3) Soft shift orifice size.75 mm. 4N 3) with lockable manual override 3) DC only Voltage K 1V = J 4V = U ) 98V = G ) 5V = Y 11V 5Hz / 1V 6Hz T 3V 5Hz / 4V 6Hz ) Rectifier needed for DC solenoid when used with C input. Further spool types, solenoid voltages and connectors on request. D1VW_UK.INDD CM_

4 Flow Curve Diagram Flow curve ll characteristic curves measured with HLP46 at 5 C. Pressure drop [bar] Spool Position b Position a Position P--T P- P- -T P- P- P- -T -T P-T ) 1) H P- -T P--T P- P- -T -T P-T Spool Position b Position a P- P- - P- -T P--T P- P ) Only for pressure compensation, no high flow possible. D1VW_UK.INDD CM_

5 Shift Limits The diagram below specifies the shift limits for valves with DC solenoids. Valves with spool position F or M can only be operated up to 7% of the limits. The specifications apply to a viscosity of 4mm /s and balanced flow conditions. The shift limits can be considerably lower at unbalanced flow conditions. To avoid flow rates beyond the shift limits, a plug-in orifice can be inserted in the P-port. Valve with standard DC solenoid , 4, , 11, 3 Pressure [bar] Pressure [bar] , 8, 9, 14, , Measured with HLP46 at 5 C, 9% U nom and warm solenoids 1,, 6 Valve with standard C solenoid Pressure [bar] , 8, 16, 7, 14, , 8, 16, 6, Pressure [bar] , 11, 1 3, 15, 4, 5 1,1, Measured with HLP46 at 5 C, 95% U nom and warm solenoids D1VW_UK.INDD CM_

6 Response Times Shift limit diagram - Soft shift with 1 DC solenoid Supply pressure [bar] Supply pressure [bar] , 3 9, 1, 4, Shift limit diagram - Soft shift with DC solenoid D Measured with HLP46 at 5 C, 9% U nom and warm solenoids 81, 8 1, 4 Response times D1VW Standard and Soft Shift Standard solenoid Energize De-energize Standard DC w/o Standard C w/o 13 Standard DC with rectifier plug w/o Response times Soft Shift Orifice size solenoid valve solenoid valve 1 solenoid valve 3 positions 3 positions positions Center position: Closed Center position: Open Energize De-energize Energize De-energize Energize De-energize S.5mm S3.75mm The lower value applies to small flow rates and low pressure, the upper value to high flow rates and high pressure Step response times were obtained under the following conditions: HLP46 at 5 C with the valve operating at nominal pressure and flow. Published response times are nominal and may vary with spool, flow, pressure and temperature. cceleration for orifice size.75, code S3 (measured against a standard valve) build-in orifice For even softer shifting, the proportional spools 81, 8, 11 and 1 can be used. D1VW_UK.INDD CM_

7 Dimensions Interface EN , DC solenoid, E, F -style H, K, M -style C, D -style Option 4N, with lockable manual override (available for all styles, DC only) Interface EN , C solenoid, E, F -style H, K, M -style C, D -style Surface finish K375 4x M5x3 DIN Nm ±15% NR: SK-D1VW-N-91 FPM: SK-D1VW-V-91 The space necessary to remove the plug per EN , design type F is at least 15 mm. The torque for the screw M3 of the plug has to be.5 to.6 Nm. D1VW_UK.INDD CM_

8 Notes D1VW-4D1_UK.INDD CM_