E SERIES. Proportional Electro-Hydraulic Relief Valves. Specification. Model Number Designation. Attachment Mounting Bolts

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1 s The electro hydraulic relief valve is designed for compactness and high efficiency. The valve provides fast proportional response to the input current. For linear pressure control a special venting feature is incorporated with good stability & low hysteresis. E SERIES EIC--- Specification Model Number Item Max. Operating Pres. Kgf/cm 1 1 Rated Flow L/min. 17 Adjustment Range Kgf/cm Refer Model No. Designation Rated Current -C : -C :7 - : - : Coil Resistance Ω 1 1 ysteresis *1 Less than 3% Less than 3% (Note1) Repeatability * Less than 1% Frequency Response z Refer Page Mass (Approx.) Kg Note : 1. Under the condition of using with YUKEN amplifier.. The figure is only valve under the same condition. Model Number Designation EB G -3 -C -11 Series No. EB: Prop. Electro ydraulic Relief Valve Type of G: Sub Plate Valve Size Pr. Adjustment Range Kgf/cm *1 Design No. 3 Note C: ~ 11 : ~ 1 11 *1. For Min. Adj. Please refer Page No.3 Attachment Bolts Model No. Socket ead Cap Screw Qty. M1 x 7Lg. M1 x 95Lg. M1 x Lg. M1 x Lg. Power Amplifier For EBG Model No. PW- AME-D-1- - AME-D SK Bolt Kit Ordering Code BKBG-3-1 BKBG (YIL make) Refer EIC--8 SK (For DC Power supply) AMN-D-1 (For DC Power supply) Sub-Plate Valve Model Number Graphic Symbol Sub-Plate Model number. Piping BSP.F Mass Kg. BGM-3-3 3/8. BGM-3x-3 1/ 3.1 BGM--3 3/.7 BGM-x When ordering, please specify model number according to the above table. When not using sub-plate, please make suitable mounting surface. Sub-Plates are same as applicable to pilot operated relief valve. Ref. EIC-C-. 1 ydraulic Relief Valve

2 Note Air vent should be in the top position (Bleed position of air vent can be changed. Refer below drawing). Air Vent The valve solenoid is of oil immersed design. To give better flow rate stability, fill the oil cavity in the solenoid body by loosening the air vent. Bleed all air from the inside of the solenoid. Low Flow Rates A flow rate of L/min or higher should be used to avoid preselected pressure instability. Safety valve setting pressure is given additional pressure 15 Kgf/cm (3 size) or 39 Kgf/cm. ( size) Max. at rated flow when maximum operation pressure. Further safety valve setting pressure is determined by max. operation pressure plus additional pressure in the graph. Tank Piping Do not connect to the other tank line. Connect directly to the tank and end of piping should be immersed in the oil. Additional L/min. Flow Rate EBG- 3 Positions of Cable outlets can be indexed in steps of 9 8 Surface O-Ring Furnished Locating Pin Dia. A B Manual Adjustment Screw 3 ex. Soc. Air Vent and Cable Connection can be indexed in Steps of 9 Increments when changing. Remove Nos. of Solenoid Bolt and Cable Outlets Suitable then set in New Positions Cable OD...8 Dia. ~ 1 Dia. Connecter Air Vent 3 ex. Socket Solenoid Bolt ( Nos.) Socket 3 ex Vent Port Safety Valve Adjustment Screw Nut... 1 ex Screw... 1mm Groove Indication Port 1/ BSP.F There is no Spotface in these Installation ole For Port Tank Port C G E F N L D K Q J S Dia. x Thru. T Dia. Spotface Places Model No. A B C D E F G J K L N Q S T EBG EBG Note : Valve Surface Dimension is the same as BG-3, BG- Sub Plate for BGM-3 or 3X BGM- or X

3 Input Current vs C C 9 Input current 35 Input current Note : Input current Error : Rating Input Current 5 at Rated Flow Min. Adjustment Min. Adjustment Viscosity : 5 cst Flow L/min. Min. Adjustment Viscosity : 5 cst L/min. Flow Frequency Response Phase Lag(deg) Gain 3 Phase Gain(dB) Frequency(z) Input Current : 3 ± Loading Flow : L/min. Loading Volume : 3/ Rubber ose 1.5 m Phase Lag(deg) Gain 3 Gain(dB) Frequency(z) Phase Input Current : 3 ± Loading Flow : L/min. Loading Volume : 3/ Rubber ose 1.5 m ydraulic Relief Valve 3

4 Step Response Characteristic (Example) (These characteristics are measured for valve itself so it is not much different in different circuit) C C Flow Rate : L/min. Flow Rate : L/min Flow Rate : L/min Flow Rate : L/min. Viscosity vs Characteristic C C Viscosity cst Oil Viscosity cst Viscosity cst Oil Viscosity cst

5 Spare Parts List List of Seals Sl. Part Numbers Name of Parts No. Qty 1 O-Ring SO-NB-P3 1 O-Ring SO-NB-P1 1 3 O-Ring SO-NB-P1 1 O-Ring SO-NA-P9 1 5 O-Ring SO-NB-P9 --- O-Ring --- SO-NB-P9 1 7 O-Ring SO-NB-A O-Ring SO-NB-P18 SO-NB-P8 Note: When ordering the seals, please specify the seal kit number from the table below. List of Seal Kits Model Numbers Seal Kit Numbers KS--11 KS--11 ydraulic Relief Valve 5