Direct Operated Type Solenoid Operated Proportional Directional Control Valve Features These four-way proportional directional control valves enable control of the forward and reverse motion of an actuator. The valve can be used alone as a shockless directional control valve. With differential transformer These proportional directional control valves perform spool position feedback control by directly driving the spool with the proportional solenoid and detecting the displacement with the differential transformer. Combining the valve with a pressure compensation valve and the dedicated driver achieves highly accurate proportional flow rate control. Without differential transformer Installed with the dedicated driver (ZDN-2-). The valve can be used as a simple flow control valve by combining it with a pressure compensation valve. Nomenclature Nominal diameter 2 KSP - G 2 - - - - 1 2 3 4 6 7 8 9 Nominal diameter 3 KSP - G 3 - - - 1 2 3 4 7 9 1 Model No. KSP: Solenoid operated proportional directional control valve 2 Connections G: Gasket mount type 3 Nominal diameter 2: ¼ 3: ⅜ 4 operating method (See the spool type table) Rated flow rate (the values at 1 land differential pressure: ΔP = 1 MPa { kgf/cm 2 }) 1: L/min 2: 18 L/min 3: L/min 4: L/min : L/min Specifications Model code Nominal diameter Maximum operating pressure MPa {kgf/cm 2 } Rated flow rate * 3 L/min 6 Solenoid code * 1 P: DC 24 V solenoid N: DC 12 V solenoid 7 Design No. (The design No. is subject to change) 8 Option code * 2 No designation: Without differential transformer, with driver ZDN-2- N: Without differential transformer, without driver ZDN-2- M: With differential transformer Note: Models with a differential transformer or with a driver are not available with nominal diameter 3 ( 3 /8). 9 Auxiliary spool type (See the spool type table) Note: * 1 The solenoid code applies only to option code N. * 2 The option code applies only to nominal diameter 2 (1/4) Permissible back pressure MPa {kgf/cm 2 } Hysteresis, resolution, repeatability Double solenoid Mass kg Single solenoid KSP-G2-1 - KSP-G2-2 - 18 KSP-G2-1 --M ¼ KSP-G2-2 --M 3 {3} 18 KSP-G2-3 --M KSP-G3-4 - ⅜ KSP-G3- - % maximum 2.7 2.1 2. { } 1% maximum 3.1 2. 16 {1} 8% maximum 6. 4.8 Note: * 3 The rated flow rate indicates the value at 1 land differential pressure: ΔP = 1 MPa { kgf/cm 2 }. J-32
Applicable driver model code Maximum current Coil resistance Solenoid Applicable driver Valve model code Solenoid ( C) ( C) Code ma Ω Model code Power supply voltage KSP-G2- - ZDN-2- KSP-G2- C N--N DC 12 V 1 6. EPD-2- DC 24 V N KSP-G2- A(B) N--N EPK-2- KSP-G2- C P--N AC,, 2 V P DC 24 V 7 26 KC-6- KSP-G2- A(B) P--N (Common for and Hz) KSP-G2- C --M EPKD-2-1 6. KSP-G2- A(B) --M EPKF-2- DC 12 V DC 24 V KSP-G3- C - EPD-3-18 4.2 KSP-G3- A(B) - EPK-3-4 9 : Spool type table operating method 2C 44C JIS graphic symbols for hydraulic system a A B b P T a A B b P T operating method 2A H2 2B 2T Note: The model code after... indicates the model of the auxiliary spool. Sub-plate model code The sub-plate is not provided with the valve. Order it separately as required by specifying the model code given in the table below. Model code Nominal diameter Connection port diameter Mass kg JS-1M2 Rc¼.64 ¼ JS-2M3 Rc⅜ 2.3 JS-3M Rc⅜ 2. ⅜ JS-3M4 Rc½ 2.2 Refer to Page S-8 for the dimensions of the sub-plate. J-33 JIS graphic symbols for hydraulic system a A B P T AB b PT Accessories Model No. Hexagon socket head cap bolt operating method 81A H44 8B 44T Quantity JIS graphic symbols for hydraulic system A B a A B P T PT Tightening torque N m {kgf cm} KSP-G2 M 4 4 6. to 8. { 6 to 8} KSP-G3 M6 3 4 12 to 1 {1 to 1} Handling Directly connect the tank piping of the valve to the tank without merging it with other tank piping. The input voltage - flow rate characteristics of these valves vary from valve to valve. Even when using valves of the same model, the flow rates of individual valves have to be finely adjusted. The degree of variation can be corrected by adjusting the maximum and minimum values with the dedicated driver's MAX/ MIN trimmer. Do not touch the zero adjusting screw of the differential transformer since it is factory adjusted. Use this valve in combination with a pressure compensation valve. Order a pressure compensation valve separately by referring to the table below as necessary. Model No. Bypass type pressure compensation valve Reduction type pressure compensation valve KSP-G2- C MRS-2W- -7 MGS-2W- -7 KSP-G2- A MRS-2A- -7 MGS-2A- -7 KSP-G2- B MRS-2B- -7 MGS-2B- -7 KSP-G3- C MGS-3W- -7 KSP-G3- A MGS-3A- -7 KSP-G3- B MGS-3B- -7 When using the valve in combination with a pressure compensation valve, maintain a pressure difference between port P and the load port within the control range shown in the minimum operating pressure characteristics curve to ensure good pressure compensation performance. When using the valve in combination with a bypass type pressure compensation valve, maintain a bypass flow rate of L/min minimum. When using the valve in combination with a pressure compensation valve, meter-in control is applied to all flow rate controls. When a differential circuit is constructed using this valve, combined use with a pressure compensation valve is not possible. Refer to Pages J-4 to 48 for the specifications and external dimensions of pressure compensation valves. Refer to Pages J-78 to 79 for the specifications and external dimensions of the driver (ZDN-2-). b J PROPORTIONAL VALVES SERVO VALVES
Performance curves (viscosity: 32 mm 2 /s {cst}) KSP-G2-2C1 --M 1. V 2 V 3 V 4 V V 3 2 V 1. V 3 (MPa) { kgf/cm 2 } V 4 V 3 V Flow rate characteristics (4-way flow) ΔP: p 1 ΔP = 3 MPa ΔP = 2 MPa ΔP = 1 MPa ΔP: 1 land differential pressure p 1 ΔP = 1. MPa ΔP =. MPa KSP-G2-2C2 --M V 2 V 1. V 3 1. V 3 (MPa) { kgf/cm 2 } 2 V 3 V 3 1. V 2 V 3 V 4 V V 4 V 3 (MPa) { kgf/cm 2 } V 4 V 3 V 4 V 3 V 2 V 1. V KSP-G2-2C3 --M Flow rate characteristics (4-way flow) ΔP: 1 ΔP = 3 MPa ΔP = 2 MPa ΔP = 1 MPa Flow rate characteristics (4-way flow) ΔP: ΔP = 3 MPa ΔP = 2 MPa ΔP = 1 MPa ΔP: 1 land differential pressure 1 ΔP = 1. MPa ΔP =. MPa ΔP: 1 land differential pressure ΔP = 1. MPa ΔP =. MPa V Note: The input voltage - flow rate characteristics are the characteristics when the valve is used in combination with a pressure compensation valve (MRS-2, MGS-2). For the characteristic curves of single solenoid models, see the characteristic curves indicated in the table below. Performance curve for reference operating method operating method Flow direction 2A-H2 2C 2B-2T 2C J-34
Performance curves (viscosity: 32 mm 2 /s {cst}) KSP-G2-44C1 --M 2 V 1. V 3 3 1. V (MPa) { kgf/cm 2 } 2 V 3 V 4 V V KSP-G2-44C2 --M V 4 V 3 V 2 V 3 1. V 3 1. V (MPa) { kgf/cm 2 } 2 V 3 V 4 V V V 4 V 3 V KSP-G2-44C3 --M V 2 V 1. V 3 3 1. V (MPa) { kgf/cm 2 } 2 V 3 V 4 V V 4 V 3 V Flow rate characteristics (4-way flow) ΔP: 1 Flow rate characteristics (4-way flow) ΔP: 1 J-3 ΔP = 3 MPa ΔP = 2 MPa ΔP = 1 MPa ΔP = 3 MPa Flow rate characteristics (4-way flow) ΔP: ΔP = 2 MPa ΔP = 1 MPa ΔP = 3 MPa ΔP = 2 MPa ΔP = 1 MPa ΔP: 1 land differential pressure Flow rate (L/min) ΔP = 1. MPa ΔP =. MPa ΔP = 1. MPa ΔP =. MPa ΔP: 1 land differential pressure ΔP = 1. MPa Flow rate (L/min) ΔP = 1. MPa ΔP =. MPa ΔP =. MPa ΔP: 1 land differential pressure ΔP = 1. MPa ΔP =. MPa Note: The input voltage - flow rate characteristics are the characteristics when the valve is used in combination with a pressure compensation valve (MRS-2, MGS-2). For the characteristic curves of single solenoid models, see the characteristic curves indicated in the table below. Performance curve for reference operating method operating method Flow direction 81A-H44 44C 8B-44T 44C Flow rate (L/min) ΔP = 1. MPa ΔP =. MPa J PROPORTIONAL VALVES SERVO VALVES
Performance curves (viscosity: 32 mm 2 /s {cst}) KSP-G2-2C1 - Differential pressure - Flow rate characteristics 3 4. V. V 4. V. V 3. V 3. V 4. V 2. V 3. V 3. V 4. V 1 3 (MPa) { kgf/cm 2 } 1. V 4. V 4. V 3. V 3. V 2. V. V 4. V 4. V 3. V 3. V KSP-G2-2C2 - Differential pressure - Flow rate characteristics Flow rate characteristics (4-way flow) ΔP = 1 MPa { kgf/cm 2 } 1 1 Flow rate characteristics (4-way flow) ΔP = 1 MPa { kgf/cm 2 } Performance curve for reference operating method operating method Flow direction 2A-H2 2C 2B-2T 2C 1 land differential pressure ΔP =. MPa { kgf/cm 2 } 1 1 1 1 land differential pressure ΔP =. MPa { kgf/cm 2 } 1 3 3 (MPa) { kgf/cm 2 } 1 Note: The input voltage - flow rate characteristics are the characteristics when the valve is used in combination with a pressure compensation valve (MRS-2, MGS-2). For the characteristic curves of single solenoid models, see the characteristic curves indicated in the table below. KSP-G2-44C1 - Differential pressure - Flow rate characteristics 4. V 4. V 2. V 3. V 3. V 1 1 4. V 4. V 3. V 3. V. V 3 3 (MPa) { kgf/cm 2 } 2. V Flow rate characteristics (4-way flow) ΔP = 1 MPa { kgf/cm 2 } 1 land differential pressure ΔP =. MPa { kgf/cm 2 }. V J-36
Performance curves (viscosity: 32 mm 2 /s {cst}) KSP-G2-44C2-3 1. V 4. V 4. V 3. V 3. V 2. V 2. V 3 3. V 3. V (MPa) { kgf/cm 2 } 1 4. V. V 4. V ΔP = 1 MPa { kgf/cm 2 } 1 1 land differential pressure ΔP =. MPa { kgf/cm 2 } Note: The input voltage - flow rate characteristics are the characteristics when the valve is used in combination with a pressure compensation valve (MRS-2, MGS-2). For the characteristic curves of single solenoid models, see the characteristic curves indicated in the table below. Performance curve for reference operating method operating method Flow direction 81A-H44 44C 8B-44T 44C KSP-G2-M Frequency response characteristics Flow rate characteristics (4-way flow) Pressure at port P: 2 MPa { kgf/cm 2 } Note: Frequency characteristics of the spool displacement voltage in reference to input voltage Gain (db) Phase delay (deg) % ± % fluctuation KSP-G2-M Step response characteristics Pressure at port P: 7 MPa {7 kgf/cm 2 } % ± % fluctuation. 1 Frequency (Hz) % ± % fluctuation 1 % ± % fluctuation 2. 1 Frequency (Hz) KSP-G2 Frequency response characteristics Pressure at port P: 2 MPa { kgf/cm 2 } Note: Frequency characteristics of the spool displacement voltage in reference to input voltage Gain (db) Phase delay (deg) KSP-G2 Step response characteristics Pressure at port P: 7 MPa {7 kgf/cm 2 } % ± % fluctuation % ± % fluctuation. 1 1 Frequency (Hz) % ± % fluctuation % ± % fluctuation. 1 Frequency (Hz) J PROPORTIONAL VALVES SERVO VALVES Control flow rate (%) 7 Control flow rate (%) 7 8 Time (ms) 8 1 1 Time (ms) J-37
Performance curves (viscosity: 32 mm 2 /s {cst}) KSP-G3-2C4 - Differential pressure - Flow rate characteristics. V Flow rate characteristics (4-way flow) ΔP = 1 MPa { kgf/cm 2 } 4. V 4. V 3. V 3 3. V 3. V 3 3. V 4. V (MPa) { kgf/cm 4. V 2 }. V KSP-G3-2C - Differential pressure - Flow rate characteristics Flow rate characteristics (4-way flow) ΔP = 1 MPa { kgf/cm 2 }. V 4. V 4. V 3. V 3 3. V 3. V 3 3. V 4. V (MPa) { kgf/cm 2 } 4. V. V 1 land differential pressure ΔP =. MPa { kgf/cm 2 } 1 land differential pressure ΔP =. MPa { kgf/cm 2 } KSP-G3-44C4 - Differential pressure - Flow rate characteristics Flow rate characteristics (4-way flow) ΔP = 1 MPa { kgf/cm 2 }. V 4. V 4. V 3. V 3. V 3 3 3. V 3. V (MPa) { kgf/cm 2 } 4. V 4. V. V 1 land differential pressure ΔP =. MPa { kgf/cm 2 } J-38
Performance curves (viscosity: 32 mm 2 /s {cst}) KSP-G3-44C - Differential pressure - Flow rate characteristics 3. V 3. V 4. V 4. V. V Input voltage - Flow rate characteristics (4-way flow) ΔP = 1 MPa { kgf/cm 2 } 8 8 7. V 4. V 4. V 3. V 3 3. V 3 (MPa) { kgf/cm 2 } 8 1 land differential pressure ΔP =. MPa { kgf/cm 2 } 8 Note: The input voltage - flow rate characteristics are the characteristics when the valve is used in combination with a pressure compensation valve (MGS-3). For the characteristic curves of single solenoid models, see the characteristic curves indicated in the table below. Performance curve for reference Performance curve for reference operating method operating method Flow direction operating method operating method Flow direction 2A-H2 2C 81A-H44 44C 2B-2T 2C 8B-44T 44C KSP-G3 Frequency response characteristics Pressure at port P: 7 MPa {7 kgf/cm 2 } Note: Frequency characteristics of the spool displacement voltage in reference to input voltage Gain (db) % ± % fluctuation % ± % fluctuation. 1 Frequency (Hz) Step response characteristics Pressure at port P: 7 MPa {7 kgf/cm 2 } Control flow rate (%) 7 J PROPORTIONAL VALVES SERVO VALVES Phase delay (deg) % ± % fluctuation % ± % fluctuation 8 1 1 Time (ms). 1 Frequency (Hz) J-39
49 Contact Details External dimension diagram KSP-G2- C - Driver (ZDN-2-) h A 4-φ9. 4-φ.3 B h Socket for hex key: 2. 7 98. 37. 4-φ7. 4-φ12.32 63 271 48..2 21. 12.7.7.1 8. T B P A 63 4-φ.3 1..9 31 31.7 48 Mounting face (conforming standard) ISO 41-3-2-- KSP-G2- A - Driver (ZDN-2-) h 98. Socket for hex key: 2. A 7 183 191 63 KSP-G2- B - Driver (ZDN-2-) h B Socket for hex key: 2. 7 98. 63 183 191 J-
External dimension diagram KSP-G2- C --N Hirschmann: GDM11 4-φ9. 4-φ.3 Socket for hex key: 2. 81. 93 49 37. 4-φ7. 4-φ12.32 63 48 KSP-G2- A --N J 93 81. Socket for hex key: 2. Hirschmann: GDM11 PROPORTIONAL VALVES SERVO VALVES 183 63 KSP-G2- B --N Hirschmann: GDM11 Socket for hex key: 2. 81. 93 63 183 J-41
External dimension diagram KSP-G2- C --M Connector for differential transformer SNS-1PCF (from Sanwa Denki Kogyo) Hirschmann: GDM11 93 81. 4-φ9. 4-φ.3 Socket for hex key: 2. 7 49 37. 4-φ7. 4-φ12.32 63 334 16. 9. 48 KSP-G2- A --M Connector for differential transformer SNS-1PCF (from Sanwa Denki Kogyo) Hirschmann: GDM11 7 Socket for hex key: 2. 93 81. 9. 16. 262 63 KSP-G2- B --M Hirschmann: GDM11 Connector for differential transformer SNS-1PCF (from Sanwa Denki Kogyo) 93 81. Socket for hex key: 2. 7 63 262 16. 9. J-42
External dimension diagram KSP-G3- C - Hirschmann: GDM11 4-φ11 4-φ6. 88 46 12 32. 21.4 6.3 4. 116 7 -φ11 -φ1.7. 88. 299 26. 7 T B P A T 7 KSP-G3- A - 116 4. 4-φ6. 3.2 16.7 27 37.3.8 4 17 Mounting face (conforming standard) ISO 41--4-- Hirschmann: GDM11 J PROPORTIONAL VALVES SERVO VALVES. 21. 88 16 KSP-G3- B - Hirschmann: GDM11 116 4. 16 88 21.. J-43
Sectional structural diagram KSP-G2- C --M 9 11 7 14 13 1 12 2 4 3 6 8 Sealing part table Quantity Part No. Name Part specifications Type C Type A/B 12 O-ring 4 4 AS68-12 (NBR, Hs9) 13 O-ring 2 2 JIS B 21 1B P18 14 O-ring 2 1 AS68-121 (NBR, Hs9) KSP-G3- C - 9 12 11 4 1 2 3 6 8 7 Sealing part table Quantity Part No. Name Part specifi cations Type C Type A/B O-ring AS68-14 (NBR, Hs9) 11 O-ring 2 2 JIS B 21 1B P28 12 O-ring 2 1 AS68-1 (NBR, Hs9) J-44