Proportional directional valves type DHZE-A and DKZE-A
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Proportional directional valves type DHZE-A and DKZE-A direct operated, without position transducer, ISO 4401 size 06 and 10 DHZE-A and DKZE-A are open-loop direct operated proportional valves with threaded type proportional solenoids, providing both directional and noncompensated flow control. They operate in association with electronic drivers, see section ‫ ,ݘ‬which supply the proportional valves with proper current to align the valve regulation to the reference signal supplied to the electronic driver. The spools are available with linear L, progressive S or differential D flow characteristics. The valve body is 3 chambers type for DHZE and 5 chambers type for DKZE. The solenoid coils are plastic encapsulated with insulation class H and they are available with different nominal resistances depending to the voltage supply (12 VDC or 24 V DC) and to the electronic driver type, see section ‫ ݘ‬and ‫.ݚ‬ Mounting surface: ISO 4401 sizes 06 and 10. Max flow with valve differential pressure Δp = 30 bar, see section ‫ݙ‬ 50 l/min for DHZE - 105 l/min for DKZE Max pressure = 350 bar for DHZE 315 bar for DKZE Valve body ቤ A B Spool Proportional solenoid Digital electronic driver E-MI-AS-IR (to be ordered separately) MODEL CODE * Seals material: omit for NBR (mineral oil & water glycol) PE = FPM DHZE = size 06 DKZE = size 10 A = without position transducer Series number Coil option (only for -A execution) see section ‫ ݘ‬and ‫:ݚ‬ - = standard coil for 24VDC Atos drivers 6 = optional coil for 12VDC Atos drivers 18 = optional coil for 24VDC low current drivers Valve size 0 = ISO 4401 size 06 (DHZE) 1 = ISO 4401 size 10 (DKZE) Hydraulic options, see section ‫:ݙ‬ B = solenoid side of port A (only for valve configuration 5) Configuration, see section ‫ݙ‬ 5 = external plus central position, spring centered 7 = 3 position, spring centered Spool size: 1, 3, 5 = see section ‫ݙ‬ Spool overlapping in central position, see section ‫ݙ‬ 1 = P, A, B, T positive overlapping (15% of spool stroke) 3 = P positive overlapping; (15% of spool stroke) A, B, T, negative overlapping Spool type (regulating characteristics) L = linear; S = progressive; D = differential-progressive (as S, but with P-A= Q, P-B= Q/2) ELECTRONIC DRIVERS FOR DHZE-A* Drivers model Type E-RP-AC analog Voltage supply Coil option Format Data sheet DIN-rail panel

HYDRAULIC CHARACTERISTICS (based on mineral oil ISO VG 46 at 50 °C) Valve model Pressure limits Spool overlapping Spool type and size (2) Hysteresis Repeatability Notes: Ȝ Above performance data refer to valves coupled with Atos electronic drivers, see section ‫.ݘ‬ Ȝ The flow regulated by the directional proportional valves is not pressure compensated, thus it is affected by the load variations.To keep costant the regulated flow under different load conditions, modular pressure compensators are available (see tab. D150). (1) Option /B Solenoid at side of port A, only for valve configuration...

p7~| DIAGRAMS FOR DHZE (based on mineral oil ISO VG 46 at 50 °C)

INSTALLATION DIMENSIONS FOR DHZE and DKZE [mm] ISO 4401: 2005 Mounting surface: 4401-03-02-0-05 (see table P005) Fastening bolts: 4 socket head screws M5x50 class 12.9 Tightening torque = 8 Nm Seals: 4 OR 108 Diameter of ports A, B, P, T: Ø 7,5 mm (max) (with digital driver E-MI-AS-IR) (with digital driver E-MI-AS-IR) ISO 4401: 2005 Mounting surface: 4401-05-04-0-05 (see table P005) Fastening bolts: 4 socket head screws M6x40 class 12.9 Tightening torque = 15 Nm Seals: 5 OR 2050 Diameter of ports A, B, P, T: Ø 11,2 mm (max) (with digital driver E-MI-AS-IR) (with digital driver E-MI-AS-IR)...