Solutions. Hydraulics. We Manufacture. H y d r a u l i c s. Vickers TM Proportional Directional Valves without Feedback. h y d r a u l i c s

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1 H y d r a u l i c s Hydraulics Vickers TM roportional Directional Valves without Feedback h y d r a u l i c s We Manufacture This product has been designed and tested meet specific standards outlined in the European Electromagnetic Compatibility Directive (EMC) 89//EEC, amended by 91//EEC, 9/1/EEC and 9/8/EEC, article. For instructions on installation requirements achieve effective TM protection levels, see this leaflet and the Installation Wiring ractices for Electronic Vickers roducts leaflet 8. Wiring practices relevant this Directive are indicated by Electromagnetic Compatibility (EMC). KD/TGV-, 1* Series ressures bar ( psi) Solutions S o l u t i o n s

2 Contents General Description age Typical Section age Model Codes age Spool Data age Functional Symbols age Operating Data age ower Capacity Envelopes age 8 Characteristics age 11 Frequency Response age 1 Installation Dimensions KDGV- age 1 KTGV- age 1 arallel ath Module age 1 Subplates and Mounting Surfaces age 1 Single Station Subplates age 17 ort Threads age 17 Mounting Surface Interface ISO 1 (Size ) age 17 Electrical Information lock Diagram age 18 Typical Connection rrangements age 19 pplication Data age

3 General Description Vickers TM K*GV- proportional valves are designed provide controlled oil flow in proportion an electrical command signal. They are available in two versions. Firstly a double solenoid version that will provide reversible flow and return an actuar. Secondly a single solenoid version that provides a single direction of flow. The K* valve incorporates an integral control amplifier. Facry set adjustments for gain, spool deadband compensation and dither ensure excellent reproducibility valve--valve. Electrical connection is via a standard 7-pin plug and requires a power supply and command signal which can be either voltage or current (model code option). In addition improving machine performance and life, the K* proportional valves substantially simplify system design by combining direction and flow capabilities in one single package that mounts on a standard ISO 1 interface. New Features and enefits State of the art digital electronic technology Rugged and robust die-cast housing Optional voltage (+/-1 volt) or current (- m) demand input djustable ramp (-1 sec) Wide range of supply voltage Optional external enable feature I7 environmental protection Full CE electromagnetic capability EN 81- and EN 8- Vibration and shock tested Standard Features and enefits Facry adjusted ensure excellent valve-valve reproducibility Installation wiring reduced and simplified Wide range of spool and flow rate options Simple valve removal and replacement for service i.e. plug and play Standard 7-pin connecr bar ( psi) pressure rating Supported by auxiliary function electronic modules Typical Section K*GV--*7, 1* Series

4 Model Codes K * G V ** * ** * ** * (V) M * *7 H Valve Type K - roportional valve with integral amplifier, series Control Type D - Directional valve T - Throttle valve Mounting G - Subplate mounted Operation - Solenoid operated 1 Spool Metering Type N - Meter-in and meter-out F - Fine meter-in and meter-out S - Meter-out only 11 Rating for symmetric Spools 1-1 (. ) (N1 only) - Omit for symmetrical spools 1 Manual Overrides lank - lain overrides H - Water resistant overrides Z - No overrides 17 T port ressure 7-1 bar ( psi) 18 Design Number 1* series - Subject change ressure Rating V - bar ( psi), ports, & Interface - ISO 1, size ---9, NSI 9.7M-DO 7 Spool Type - Closed center - port closed, & tank 8 Spool/Spring rrangement C - Spring centered, dual solenoid - Spring centered, single solenoid (solenoid version only, solenoid for V version) 9 Spool Rating - at bar (7 psi) per metering flow path - (.79 ) 7-7 (1.8 ) 1-1 (. ) - (.8 ) - (. ) 1 Solenoid Energization Identity V - Solenoid is at port end, solenoid is at port end, independent of spool type lank - US NSI 9.9 standard (energize solenoid, flow is -) 1 Electrical Command Option 1 - +/- 1V control signal - - m control signal 1 Electrical Connection C7 - E7 - H7 - R7-7-pin connecr, without plug supplied 7-pin connecr, with plug supplied s E7 but with pin C used for enable signal s C7 but with pin C used for enable signal 1 Coil Rating H - V DC amplifer supply Warning Valves with integral amplifiers are supplied with or without the metal 7-pin plug. The Vickers TM plug, part no. 999, must be correctly fitted ensure that the EMC rating and I7 rating are achieved. The plug retaining nut must be tightened with a rque of -, Nm (1.-. lbf ft) effect a proper seal.

5 Spool Data Spool Symbols vailable Spools for KDGV- Spool type C**N, meter-in/meter-out Spool Types and Ratings Symmetric Spools ase line starting at p = bar (7 psi) per metering flow path, e.g. T. For actual maximum flow refer power capacity envelope curves. Spool Code Spool Symbol Rating Spool type CN1, asymmetric flow Spool Type CS, meter-out only Spool type C**N, meter-in/meter-out For KDGV- valves: CF C7N C1N CN CS CF C7N C1N CN C C C C C C C C C (.79 ) 7 (1.8 ) 1 (. ) (.8 ) (. ) (.79 ) 7 (1.8 ) 1 (. ) (.8 ) Spool type CN1, asymmetric flow For KTGV- valves: F 7N 1N N (.79 ) 7 (1.8 ) 1 (. ) (.8 ) vailable Spools for KTGV- Spool type **N, meter-in/meter-out symmetric Spools Figure preceding metering type designar, "N" (e.g. C***N) is flow rating -, or -T ("" port flow); figure after "N" (N***) is flow rating -, or -T ("" port flow). Spool type **N, meter-in/meter-out Spool Code For KDGV- valves: CN1 CN1 Spool Symbol C C Rating (.8 ), 1 (. ), (.8 ), 1 (. ), "" port flow "" port flow "" port flow "" port flow Functional Symbols Model Type KDGV- roportional directional valve (with integrated electronics) Model Type KTGV- roportional throttle valve (with integrated electronics) 7-pin plug 7-pin plug T T

6 D C E F G Operating Data View of pins of fixed half 7-pin plug connecr (1 F). C and SUS) (18 cst at fluid with typical is Data amplifier. integral with Valves KD/TGV- supply ower H) 1 code (Model (V) ripple) 1% peak--peak including V (1V DC V 1. - current max (Volts) signal Command impedance Input 1) 1 code (Model pin voltage mode Common DC +1V -1V or DC, -1V or DC, +1V k 7 Ω V (Current) signal Command ) 1 code (Model impedance Input m 1 Ω signal enable Valve Enable Disable impedance Input max) (V >9.V <.V k Ω in C D E F G Description (+) positive supply ower return command current and V supply ower R7) & (H7 enable Valve in) current or (+V signal Command GND) current or (-V signal Command monir Output ground rotective (EMC): compatibility Electromagnetic V/m) (1 Emission V/m) (1 Immunity 81- EN 8- EN valves KD F) (pin signal Monir impedance Output supply) power V V/ (.9 +V k 1 Ω ---T flow through with response input Step - e.g. path, metering per psi) (7 bar p= version: (H) V for flow step Required 1% - 1% - -9% +9% step: required 9% of reach Time ms ms ms settings): facry (at valve--valve Reproducibility, signal 1% command low at F % rotection: Electrical Environmental protected polarity Reverse I7 Class 9, IEC performance full for range temperature air mbient performance full for range temperature Oil 18 F) ( F 7 C C 18 F) ( F 7 C C performance reduced at work will valves which at inimum temperature M ) (- F - C range temperature rage S ) +18 F (-1 F +8 C - C products: Supporting mounting): (DIN-rail modules electronic uxiliary converter Signal EH-CON-1-* generar signal Command EHD-DSG-1--1* generar Ramp EH-RM-1--* controller ID EH-ID-1--* supply ower EH-SU catalog See 7 catalog See 1 catalog See 7 catalog See 1 catalog See

7 Operating Data (cont.) R amp time -1 sec for full step input (-1%) R elative duty facr Continuous rating (ED = 1% ) Hysteresis with flow through ---T <8% of rated flow Mass: KDGV- KTGV-,7 kg (.9 lb) approx. 1,9 kg (. lb) approx. 7

8 ower Capacity Envelopes ower Capacity Looped 8 *S or *N *1N T T 1 *7N 1 *F 1 1 bar psi 1 1 ressure drop ower Capacity Looped 8 *N or *1N T T 1 *7N 1 *F 1 1 bar psi 1 1 ressure drop 8

9 ower Capacity Envelopes (cont.) ower Capacity S 8 *N () or () *1N (T) T 1 *7N 1 *N 1 1 bar psi 1 1 ressure drop 1 ower Capacity S 8 *N () or () *1N (T) T 1 *7N 1 *F 1 1 bar psi 1 1 ressure drop 9

10 ower Capacity Envelopes (cont.) 8 ower capacity *CN1 (for various area ratios) :1 Extending :1 Extending 1.:1 Extending Inlet flow :1 Retracting :1 Retracting :1 Retracting 1 1 bar psi 1 1 Total pressure drop 1

11 Characteristics KD/TGV- Spool types as noted Looped flow at p = 1 bar (1 psi) K valves are preset at the facry compensate for the effect of spool overlap *F *F % % Command signal % of max. Command signal % of max *7N *7N Command signal % of max. % % Command signal % of max. 11

12 Characteristics (cont.) KD/TGV- Spool types as noted Looped flowpath at p = 1 bar (1 psi) K valves are preset at the facry compensate for the effect of spool overlap *1N 1 8 *1N % Command signal % of max Command signal % of max. % *N 1 1 *N % Command signal % of max. Command signal % of max. 9 1 % 1

13 Characteristics (cont.) KD/TGV- Spool types as noted Looped flowpath at p = 1 bar (1 psi) K valves are preset at the facry compensate for the effect of spool overlap. 7 1 CS Command signal % of max. % CN1 CN1 CN CN1 CN Command signal % of max. % % Command signal % of max. 1

14 Frequency Response (Typical) For an amplitude of ±% max. stroke about the % position, at p (-) = bar (7 psi) mplitude ratio (d) Frequency (Hz) 1 hase lag (degrees) Frequency (Hz) 1 1 Frequency (Hz) 1

15 Installation Dimensions in mm (inches) KDGV- rd angle projection G (Earth) F (Monir output) E (-VE) Orientation rib (±V) (ower OV) C (Enable) D (+VE) (.79) for connecr removal 78, (.8) 8 (1.) 7 (1.87) 1, (.9) View with connecr removed show pin designations 1 (.) clearance remove coil (.) (.91) (.) 1,7 (.8), (.97) ort ort Locating pin (1.81) 7, (.) 1,7 (.) ort ort T KTGV- 8 (8.19) Warning Valves with integral amplifiers are supplied with or without the metal 7-pin plug. The Vickers TM plug, part no. 999, must be correctly fitted ensure that the EMC rating and I7 rating are achieved. The plug retaining nut must be tightened with a rque of -, Nm (1.-. lbf ft) effect a proper seal. 1 (.) 9 (.) Mounting surface seals supplied Note: leed screw locations. ir bleed: rque,-7, Nm (7- lbf ft). NOTE: For optimum valve operation, bleed the air from the proportional solenoids at initial start-up. This may be done as follows: Remove the bleed screws until no bubbles appear and then reinstall bleed screws, or... Remove both bleed screws, and use a standard oil can nozzle pump fluid in one side until it flows, free of air bubbles, out the other side. Reinstall screws. If there is no inherent back pressure in the tank port of the circuit, do not allow the tank line empty. This may be prevented by installing a check valve in the tank line. The cracking pressure of the check valve should be in the range of 1.- bar (- psi). 1

16 Installation Dimensions in mm (inches) arallel ath Module Size arallel--ath Module KDGM--1-1* T holes Ø, (. dia), counterbored Ø 9, (.7 dia) T Typically used for doubling effective flow capability of single solenoid proportional valves (throttle valves). T, (.) Nameplate, T and T ports at subplate face are blind holes fitted with O-seals. 7, (1.9), (1.97), (.78) Subplates and Mounting Surfaces General Description If a subplate is not used a machined pad must be provided for valve mounting. ad must be flat within,17 mm (. inch) and smooth within 1, µm ( microinch). Mounting bolts, when provided by cusmer, should be ISO 898 class 1.9 or better. Subplates Dimensional Tolerances Dimensional lerance on interface drawings is ±, mm (±.8") except where otherwise stated. ISO 1 specifies inch conversion ±.1". Conversion from Metric ISO 1 gives dimensions in mm. Inch conversions are accurate.1" unless otherwise stated. Mounting olt Tappings ISO 1 gives metric thread tappings. lternate UNC tappings are recommendations that allow these plates and associated valves be used up their maximum pressures, when using recommended Vickers TM bolt kits, or bolts of an equivalent strength. It is recommended that cusmers own manifold blocks for UNC bolts should be tapped the minimum depths given in the footnotes. Description and Mass kg (lb) Functional Symbol Model Code Max. ressure Single-station subplate; Rear ports, T,, Cast iron 1, (.9) T KDGVM--1*-R bar ( psi) KDGVM--78-1* (SE/UNF ports) * Design number subject change. No change of installation dimensions for design numbers 1 19 or 1 9 inclusive. S" suffix = SE/UNC ports and/or UNC fixing bolt tappings and/or orifice plugs as appropriate. R" suffix = SF and/or metric fixing bolt tappings and/or orifice plugs as appropriate. 1

17 Installation Dimensions in mm (inches) Single-Station Subplates system connections for rear-entry models, see table holes tapped according model type (see table): For models with SF ports, M x 1 (.7) deep For models with SE ports, #1- UNC- x 1,7 (.) deep, (1.8), (.79) 8, (.) T holes Ø, (. dia) spotfaced Ø 1, (.1 dia) L 7, (.), (1.8) 1,7 (.) 1,7 (.), (1.) 9, (.) T 1, (.) Rear mounting face ort L T L 7, (.8) 1,7 (.) 19,7 (.78) 7, (.8), (.), (.) 8, (.) ort Threads Model orts, T,, ort L SF ports/m mounting bolts: KDGVM--1*-R Rear G /8" ( /8" SF) x 1, (.7) deep G 1 /8" ( 1 /8" SF) x 1, (.7) deep SE ports/#1- UNC mounting bolts: KDGVM--78-1* 11, (.) from rear mounting face port centerline. Rear /"-1 UNF- x 1, (.) deep (SE) 7 / "- 1 UNF- x 11, (.) deep (SE) Mounting Surface ISO 1 (Size ) This interface conforms : ISO plus location pin hole NSI/9.7M (and NF) size CETO RH.--, plus location pin hole DIN Form plus location pin hole #1- UNC- optional. holes, M x 1 (.7) min. full thread depth 1, (.1),9 (1.1) 1, ±,1 (1. ±.) ports Ø, (. dia). For all Vickers TM size valves this diameter may be increased Ø 7, (.9) Ø, x, min. depth (.1 dia x.17) for locating pin,1 (.) 1,7 (.) T 7 (.7) min., (1.18) 1, (.8) 1,7 ±,1 (1. ±.) 7, (.9), ±,1 (1.9 ±.),7 ±,1 (. ±.) 8 (1.89) min. 17

18 Electrical Information lock Diagram KD/TGV- Command Signals and Outputs 7-pin plug direction Command = Volts (±1V) in D ositive OV V D - V = ositive E Negative in E OV Negative OV Wiring Connections must be made via the 7-pin plug mounted on the amplifier. See this leaflet and Installation Wiring ractices for Vickers TM Electronic roducts leaflet 8. Recommended cable sizes are: ower cables: For V supply:,7 mm (18 WG) up m ( ft) 1, mm (1 WG) up m (1 ft) Signal cables:, mm ( WG) Command = Current (- m) OV V D in - V = Negative E D more than 1 m ositive in E Current GND in Current return direction Screen (shield): suitable cable would have 7 cores, a separate screen for the signal wires and an overall screen. Cable outside diameter 8,-1, mm (.1-.1 inches) See connection diagram on next page. less than 1 m Current GND Current return 7-pin plug connections +V ower V +V +V Solenoid Drive Command signal voltage, see table Enable Non-inverting Inverting C D E Ramp Gain WM Modular Current Monir rotective Ground F G Deadband Solenoid Drive 1 In valves with H7 or R7 type electrical connection. Warning ll power must be switched off before connecting or disconnecting any plugs. 18

19 Typical Connection rrangements Wiring Connections ower Supply User anel +V V Outer Screen K...C7/E7 valve Demand Signal Solenoid Current Monir V +/-1V V Input Inner Screen Drain Wire C D or E G F Valve must be connected ground via subplate in C may be connected ground or left unconnected. Enclosure V must be connected ground Connecr shell Wiring Connections for Valves with Enable Feature ower Supply User anel +V V Outer Screen K...R7/H7 valve Enable Signal Demand Signal Solenoid Current Monir V +8.V V V Input Inner Screen Drain Wire C D or E E or D G F Note: In applications where the valve must conform European RFI/EMC regulations, the outer screen (shield) must be connected the outer shell of the 7-pin connecr, and the valve body must be fastened the earth ground. roper earth grounding practices must be observed in this case, as any differences in command source and valve ground potentials will result in a screen (shield) ground loop. V must be connected ground Connecr shell Valve must be connected ground via subplate Warning Electromagnetic Compatibility (EMC) It is necessary ensure that the valve is wired up as above. For effective protection the user electrical cabinet, the valve subplate or manifold and the cable screens should be connected efficient ground points. The metal 7-pin connecr part no. 999 should be used for the integral amplifier. In all cases both valve and cable should be kept as far away as possible from any sources of electromagnetic radiation such as cables carrying heavy current, relays and certain kinds of portable radio transmitters, etc. Difficult environments could mean that extra screening may be necessary avoid the interference. It is important connect the V lines as shown above. The multi-core cable should have at least two screens separate the demand signal and monir output from the power lines. The enable line pin C should be outside the screen which contains the demand signal cables. 19

20 pplication Data Fluid Cleanliness roper fluid condition is essential for long and satisfacry life of hydraulic components and systems. Hydraulic fluid must have the correct balance of cleanliness, materials and additives for protection against wear of components, elevated viscosity and inclusion of air. Recommendations on contamination control methods and the selection of products control fluid condition are included in publication 91 or 1, Guide Systemic Contamination Control. The book also includes information on the concept of roctive Maintenance. The following recommendations are based on ISO cleanliness levels at µm, µm and 1 µm. For products in this catalog the recommended levels are: 7 bar (1 psi)...18/1/1 7 + bar (1 + psi)...17/1/1 Vickers TM products, as any components, will operate with apparent satisfaction in fluids with higher cleanliness codes than those described. Other manufacturers will often recommend levels above those specified. Experience has shown, however, that life of any hydraulic components is shortened in fluids with higher cleanliness codes than those listed above. These codes have been proven provide a long trouble-free service life for the products shown, regardless of the manufacturer. Hydraulic Fluids Materials and seals used in these valves are compatible with antiwear hydraulic oils, and with non-alkyl-based phosphate esters. The extreme operating viscosity range is 1 cst (7 7 SUS) but the recommended running range is 1 cst ( 7 SUS). Installation The proportional valves in this catalog can be mounted in any attitude, but it may be necessary in certain demanding applications, ensure that the solenoids are kept full of hydraulic fluid. Good installation practice dictates that the tank port and any drain port are piped so as keep the valves full of fluid once the system start-up has been completed. Mounting olt Kits K-19M (metric) K971 (inch) If not using recommended Vickers TM bolt kits, bolts used should be ISO 898, 1.9 or better. Seal Kit lugs 7-pin plug (metal) pin plug (plastic)... 9 (Metal plug must be used for full EMC protection) Note: n alternative metal connecr which gives EMC protection but not I7 rating is available from ITT-Cannon, part number C-COM-E-1S-7-. Service Information The products from this range are preset at the facry for optimum performance; disassembling critical items would destroy these settings. It is recommended that if any mechanical or electronic repair is necessary, valves should be returned the nearest Ean Hydraulics repair center. The products will be refurbished as necessary and retested specification before return. Field repair is restricted the replacement of the seals.

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22 Ean Fluid ower Group Hydraulics Group US 11 Lone Oak Road Eden rairie, MN US Tel: Fax: Ean Fluid ower Group Hydraulics Group Europe Route de la Longeraie Morges Switzerland Tel: +1 () Fax: +1 () Ean Fluid ower Group Hydraulics Group sia acific 11th Floor Hong Kong New World Tower Huaihai Zhong Road Shanghai 1 China Tel: Fax: Ean Corporation ll Rights Reserved rinted in US Document No. V-VLDI-MC1-E Supersedes EN 1-1 March 9