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Servo proportional valves

Servo proportional valves

Servo proportional valves

Product catalog summary
Overview: This document outlines the specifications and operational guidelines for Atos servoproportional valves, specifically the DLHZO and DLKZOR models. These valves are direct-operated, sleeve execution, and equipped with position transducers, suitable for ISO 4401 size 06 and 10 applications.
Model Code: The model codes DLHZO and DLKZOR denote valve sizes, with DLHZO for size 06 and DLKZOR for size 10. The presence of a position transducer is indicated by 'T', while 'TE' and 'TES' signify integral analog and digital electronics, respectively.
Valve Configuration: Various configurations are available, including fail-safe positions and spool sizes, tailored for different operational needs such as external position settings and spring offsets.
Hydraulic Characteristics: These valves operate at a maximum pressure of 350 bar, with flow rates up to 40 l/min for size 06 and 100 l/min for size 10 at a differential pressure of 70 bar. They are compatible with synthetic fluids like water-glycol and phosphate ester.
Electronic Drivers: Electronic drivers are required for valve operation, with specific models available for each valve type. These drivers ensure valve regulation aligns with the electronic reference signal.
Communication Interfaces: Digital executions offer communication interfaces such as RS232, CANbus, and PROFIBUS-DP, facilitating integration into fieldbus communication networks.
Hydraulic and Electronic Options: Options to enhance valve functionality include external drains, fault signals, and current reference inputs. Digital executions offer special options like closed-loop pressure and force control.
Installation and Safety: CE marked, these valves must be installed per specific guidelines to ensure safety and compliance with European standards. Electrical signals from the valves should not be used directly for safety functions.
General Notes: The document stresses the importance of a stabilized power supply and proper signal handling for optimal valve performance. Options are available to adapt standard execution to specific application requirements.
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Catalog excerpts

Servo proportional valves-1

DLHZO =size 06 Synthetic fluids DLKZOR =size 10 WG =water-glycol PE =phosphate ester T = with position transducer TE = as T plus integral electronics Series number TES = as T plus integral digital electronics > Hydraulic options, see section : B =solenoid, integral electronics andposition transducer at side of port A > Communication interfaces (only for TES) PS = RS232 serial Y =external drain BC = CANbus BP = PROFIBUS-DP Electronics options, for -TE executionsee section : F =fault signal > Valve size , see section = ISO 4401 size 06 1 = ISO 4401 size 10 I =current reference input and monitor (4շ20 mA) Q =enable signal Valve configuration, see section Z =enable, fault and monitor signals 4 =2 external position, spring offset, fail safe 6 =2 external position, spring offset Electronics options, for -TES executionsee section : Spool type (regulating characteristics) =zero overlapping I =current reference input and monitor (420mA) Z = double power supply, enable fault andmonitor L = linear; D = differential-linear (as L , but with P-A = Q, P-B = Q/2) > (1) Special options for -TES execution DT = as D , but with non linear regulation > (1) see section : T = not linear regulation > (1) SF = additional closed loop force control, V = progressive with two remote pressure transducers SL = additional closed loop force control 0, 1, 3, 5, 7 = spool size, see section with one remote load cell SP = additional closed loop pressurecontrol with one remote pressure transducer > C = current feedback interface for transdu-cer(s) Fail safe configuration (de-energized solenoid): only for options /SF, /SL, /SP > 1 = A, B, P, T with positive overlapping (20% of spool stroke) 3 =P positive overlapping (20% of spool stroke); A, B, T negative > (1) Spool type D, DT and T are available only for valve configuration with fail safe position DLHZO-*-040 and DLKZOR-*-140 > For power supply and communication connector see section > 16 and 18 F180 >

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3HYDRAULIC CHARACTERISTICS (based on mineral oil ISO VG 46 at 50 C) *60-L*1/B*60-V*1/Baaab zero point displacement < 1% at Valve modelPressure limits [bar] DLHZO-T* DLKZOR-T* ports P, A, B = 350; T = 160 (250 with external drain /Y) ports P, A, B = 315; T = 160 (250 with external drain /Y) SpoolLeakage [cm L0 L1V1L3V3L5T5L7T7V7D7DT7L3L7T7V7D7DT7 Max flow[l/min]at ТȆ p = 30 barat 4,57589141320182826402613402040606510065緷3310050 碈 p = 70 bar2,54 10 15 > 3 /min] at P = 100 bar > (1) <100<100<150<200<200 <200<300<500 0,1% <200 <900<200 <700 <1000<1500 <400 0,1% Hydraulicsymbols*60-L*1*60-V*1bb <400...

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8ANALOG INTEGRAL DRIVERS -TE - MAIN FUNCTIONS AND ELECTRONIC CONNECTIONS MAIN CONNECTOR REGULATIONS AND LED > 7 PIN - STANDARD (remove the rear cover) BIASSCALEDIAGNOSTIC B2B1S2S1 (driver view)(driver view) 12 PIN - OPTION /Z LED B1:B2:S1:S2: bias adjust not workingpositive scale adjustnegative scale adjust LED: OFF normal working; ON fault presence 8.1ELECTRONIC CONNECTIONS - 7 & 12 PIN MAIN CONNECTORS Standard7pin /Z option12pin SIGNAL TECHNICAL SPECIFICATIONS NOTES A 1 V+ Power supply 24 V > DC for solenoid power stage and driver logic Input - power supplyGnd - power supply B 2 V0 Power supply...

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13DIAGRAMS (based on mineral oil ISO VG 46 at 50 C) 13.1Regulation diagrams1 12 =Linear spools L 2 =Differential - linear spool D7 > Nominal flow [%] Nominal flow [%] Reference signal [Volt]Reference signal [Volt] 3 = Differential non linear spool DT7 4 = Non linear spool T5 (only for DLHZO) 3 Note 4 T5 and T7 spool types are specific for finelow flow control in the range form 0 to 40% (T5) and 0 to 60% (T7) of max spool stroke. The non linear characteristics of the spool is compensated by the electronic driver, so thefinal valve regulation is resulting linearrespect the reference signal (dotted...

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13.2Flow / ∆ p diagrams Stated at 100% of spool strokeDLHZO: 1 = spool L7, T7 2 = spool L5, T5 3 = spool L3 4 = spool L1DLKZOR: > Flow rate [l/min] Flow rate [l/min] 5 = spool L7, T7 6 = spool L3 Valve pressure drop ∆ p [bar] Valve pressure drop ∆ p [bar] 13.3Bode diagrams Stated at nominal hydraulic conditionsDLHZO: 1 = 100% nominal stroke 2 = ѱ 5% nominal strokeDLKZOR: 12123434 561234 13.4Dynamic response > Phase [degree]Amplitude ratio [dB] Phase [degree] 3 = 100% nominal stroke > Amplitude ratio [dB] 4 = ѱ 5% nominal stroke Frequency [Hz] Frequency [Hz] The response times in section have...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.