High Pressure, High Modular Valves EIC-F-14- MODULR VLVES The modular valves are functional elements with which a hydraulic system can be composed and built easily by stacking them with the mounting bolts. Therefore, no piping is required for the manufacture of the hydraulic systems. uken s 6 Series Modular Valves are widely used to compose the hydraulic systems for the various industrial and marine equipment including machine tools, special purpose machines, presses, steel mill equipment and ships. The Valves have standardized mounting surface conforming to ISO 441-E-8-4- and optimum thickness for the stacking. Example of Stacking Configuration F Mounting Nut Stud olt olt Kits 3 4 Solenoid Controlled Pilot operated Directional Valve 6 Series Modular Valves P T 6 Series Modular Valve ssembly 1
Types of Modular Valve Class Model Numbers Graphic Symbols Page Class Model Numbers Graphic Symbols Page Solenoid Controlled Pilot* 1 Operated Directional Valve (S-)DSHG-6- - -51 Reducing Valves (for "P-Line") MRP-6- -3 Reducing Valves (for "-Line") MR-6- -3 Reducing Valves (for "-Line") MR-6- -3 Throttle and Check Valves (for "-Line", Metre-out) MS-6--3H1 EIC-E-13 6 6 6 9 Flow Control Valves Pilot Operated Check Valves (for "-Line", Internal Pilot- Internal Drain Type) MP-6- -3 Pilot Operated Check Valves (for "-Line", External Pilot- External Drain Type) MP-6- -3 Pilot Operated Check Valves (for "-Line", External Pilot- Internal Drain Type) MP-6- -3 Pilot Operated Check Valves (for "-Line", Internal Pilot- Internal Drain Type) MP-6- -3 Pilot Operated Check Valves (for "-Line", External Pilot- External Drain Type) MP-6- -3 Flow Control Valves Throttle and Check Valves (for "-Line", Metre-in) MS-6--3H1 Throttle and Check Valves (for "-Line", Metre-out) MS-6--3H1 Throttle and Check Valves (for "-Line", Metre-in) MS-6--3H1 Throttle and Check Valves (for "&-Line", Metre-out) MSW-6--3H1 9 9 9 9 Mounting olts Pilot Operated Check Valves (for "-Line", External Pilot- Internal Drain Type) MP-6- -3 Pilot Operated Check Valves (for "& Lines", Internal Pilot- Internal Drain Type) MPW-6- -3 olt Kits MK-6- -3 15 Throttle and Check Valves (for "&-Line", Metre-in) MSW-6--3H1 9 *1 *2 ecause drain ports V and W are not provided for solenoid controlled pilot operated directional valves of Pressure centred Type (3H ) and models with Pilot Piston (P ), those valves cannot be used in combination with modular valves. For the details of solenoid controlled Pilot Operated Directional Valves, see the following catalogue: Catalogue No. Pub. EIC-E-13. 2
Instructions Caution in the selection of valves and circuits designing The selection of modular valves, to suit a particular functions or hydraulic circuit, are made in exactly the same way as conventional valves, taking into account of the flow and pressure of each valve to be used. In some cases, the stacking system may be restricted. So please refer to the following instructions for stacking sequence. Please note that, when designing a system using modular stacking valves, due consideration should be given to working space for future maintenance. Stacking sequence when using reducing valves (for or Line) and throttle check valves (for metre-out). In to T flow in the drawing left (incorrect), pressure is generated at part with a throttle effect of the throttle and check valve. Depending upon the pressure so generated, the reducing valve may perform a pressure reducing function which causes a shortage of output power of the cylinder and spoils the smooth operation of the cylinder. Therefore, stacking sequence in the drawing right (correct) is required in this combination. (Incorrect) (Correct) Solenoid Controlled Pilot Operated Directional Valve Throttle and Check Valve (for "&-Line", Metre-Out) Reducing Valve (for "-Line") P T P T Stacking sequence when using pilot operated check valves and throttle and check valves (metre-out). In to T flow in the drawing left (incorrect), Pressure is generated at part with a throttle effect of the throttle and check valve. The pressure so generated acts to shut the pilot operated check valve and eventually creates an open and shut operation of the valve repeatedly which may causes the cylinder to have a knocking effect ( the same effect will occur in case of to T flow). Therefore, the stacking sequence in the drawing right (correct) is required in this combination. (Incorrect) (Correct) F Solenoid Controlled Pilot Operated Directional Valves Throttle and Check Valve (for "&-Line", Metre-Out) Pilot Operated Check Valve (for "&-Line") P T P T 3
Specifications Max. Operating pressure 25Kgf/cm 2 Max... 5 L/min. Number of stack. 1 to 5 stacks* * The number of stacks includes the controlled pilot operated Directional valve. 3/4 Solenoid Controlled Pilot Operated Directional Valves UKEN 6 SERIES MODULR VLVES are designed for use with solenoid controlled pilot operated directional valve having an ISO 441-E-8-4- (CETOP-8, NFP-D6) interface such as UKEN s DSHG-6. Please refer to the Catalogue No. Pub. EIC-E-13 for details. Hydraulic Fluids Fluid Types ny type of hydraulic fluids, listed in the table below can be used. Petroleum base oils Use fluids equivalent to ISO VG 32 or VG 46. Synthetic Fluids Water containing Fluids Use phosphate ester or polyol ester fluid. When phosphate ester prefix F- to the model number because the special seals (fluororubber) are required to be used. Use water-glycol fluids. MODULR VLVES Note: For use with hydraulic fluids other than those listed above, please consult your uken representatives in advance. Recommended Viscosity and Temperature lways be sure to use hydraulic fluids within the stipulated conditions shown below. Viscosity: 15 to 4mm 2 /s, Temperature: -15 to +7 C Control of contamination Due caution must be paid to maintaining control over contamination of the hydraulic fluids which may otherwise lead to breakdowns and shorten the life of the valve. Please maintain the degree of contamination within NS 1638- Grade. Use 25µm or finer line filter. Sub-Plates When mounting the modular valves, use sub-plates specified below. If these sub-plates are not used, ensure that the mounting surface has a good machined finished. Sub-Plates Model Numbers: DHGM-6-5 Note: For the Details of Sub-Plates, See the Catalogue No. EIC-E-13. Mounting olts 6 Series modular valves are mounted using stud bolts which are supplied in a kit form. When mounting, see the following table for tightening torque. fter the test run, be sure to tighten again firmly within the specified torque. 4
ssembly ssembly should be carried out in clean conditions and in accordance with the following procedure. Cautious attention should be paid to ensure that the interface of the valves are clean and free from dirt or other foreign materials. ssembly Procedure 1) Screw-in the six stud bolts, fully into the tapped holes on the mounting surface of the specified sub-plate or mainfold. 2) Referring to the circuit diagram, stack the modular valve and the solenoid controlled pilot operated directional valve. Take care to face their O-Ring side to the sub-plate or manifold, put the stud bolts in position and be sure to check that the locating pins are at the pin holes. 3) lign both the end of the valves stacked. 4) Screw-in the six nuts onto the stud bolts and tighten with the specified torque. fter the test run, be sure to re-tighten the nuts firmly within the specified torque. Nut Stud olt Mounting olt Kits 3 4 Solenoid Controlled Pilot operated Directional Valve 6 Series Modular Valves CUTION Keep all installation holes and surfaces clean. Failure to do this may cause fire due to oil leakage. efore installing the product, be sure that all specified bolts are tightened to the specified torque levels. outside specifications may cause improper operation, damage, oil leakage, etc. [Example] 6 Series Modular Valve ssembly Pressure Drop Pressure drop curves of the modular valves are those based on viscosity of 35 mm 2 /s and specific gravity of.85. When using the modular valves in conditions other than the above mentioned, find the appropriate values referring to the following table and formula. For any other viscosity, multiply the factors in the table below. Viscosity mm 2 /s 15 2 3 4 5 6 7 8 9 1 Factor.81.87.96 1.3 1.9 1.14 1.19 1.23 1.27 1.3 For any other specific gravity (G' ), the pressure drop ( P' ) may be obtained from the following formula. P' = P(G' /.85) F 5
Reducing Modular Valves Specifications Model Numbers MR -6--3H1 Max. Oper. Pressure Kgf/cm 2 Max. Flow* L/min. 5 MR -6- C -3H1 25 5 H * In the pressure adjustment ranges "" and "", maximum flow rates are limited by the pressure setting on the secondary side Referring to the secondary pressure vs. maximum flow characteristics on the following page, use the valve at the maximum flow rate within a zone highlighted with Model Number Designation F- MRP -6 - -3 H1 Valve Pre. dj. Range Design Design Special Seals Series Number size Kgf/cm 2 Number Standard F: Special Seals for Phosphate Ester Type Fluids (Omit if not required) MRP : Reducing valve for P-Line MR : Reducing valve for -Line MR : Reducing valve for -Line 6 : 7-7 : 15-7 C: 35-14 H : 7-21 3 H1 Instructions Connect Drain Line ( Port) to oil tank independently so as to obtain stable pressure setting. t the same time, the solenoid controlled pilot operated directional valve to be used in combination with this valve must be of internal drain type (with T). To make pressure adjustment, loosen the lock nut and turn the pressure adjustment screw clockwise or anti-clockwise. For an increase of pressure, turn the screw clockwise. e sure to re-tighten the lock nut firmly after making adjustment to the pressure. Graphic Symbols MRP-6 MR-6 MR-6 6
Typical Performance Characteristics Hydraulic Fluid: Viscosity 35cSt, Specific Gravity.85 Pressure Drop Pressure Drop at Spool Fully Open (P-Line) 1.5, & T-Line 25 Pressure Drop P 1..5 1 2 3 4 5 L/min. Pressure Drop P 2 15 1 5 1 2 3 4 5 L/min. Pilot Flow L/min. 1.4 1.2 1.8.6.4.2 L/min. 5 1 15 2 25 5 4 MR -6-/C/H MR -6- Differential Pressure (Primary Pressure - Secondary Pressure) Secondary Pressure Vs. Max. Flow MR -6-H 21 2 19 MR -6-C/H 14 13 MR -6-/C/H 7 Secondary Pressure Nominal Override Characteristics Primary Pressure 25 Kgf/cm 2 F 3 25 2 5 9 MR -6- MR -6-7 1 2 3 4 Secondary Pressure 6 5 1 2 3 4 5 L/min. 7
MRP-6- -3H1 MR-6- -3H1 MR-6- -3H1 View rrow Z Secondary Pressure Gauge Connection 1 4 SP.Tr Thd. 3 M 8 Thd. x 9 Deep 2 Places Sling Fitting Screw 154 13 53 116 92 T P MODULR VLVES 15 Dia. x Thru. 6 Places Lock Nut DIMENSIONS IN MILLIMETRES 41 MRP-6 45 77 Fully Extended 281 MR-6 3 3 Secondary Pressure Gauge Connection 1 4 SP.Tr Thd. Secondary Pressure Gauge Connection 1 4 SP.Tr Thd. Z Pressure dj. Screw 14 Hex. Inc. 38 85 MR-6 Two Locating Pins 6 Dia. 6 Mass.. 11.1 Kg (pprox) Spare Parts List List of Seals Sl. No. Name of Parts Part Nos. Qty. 1 O-Ring SO-N-P9 1 2 O-Ring SO-N-P9 5 3 O-Ring SO-N-P14 2 4 O-Ring SO-N-P28 4 5 O-Ring SO-N-P3 2 Note : When ordering the seals, please specify the seal kit KS-MRP-6-3. 8
3/4 Throttle and check Modular Valves Specifications Max. Operating Pressure Kgf/cm 2 Max. Flow L/min. 25 5 Model Numbers Graphic Symbols Metre-out Metre-in MS-6 MS-6- MS-6- MS-6 MS-6- MS-6- MSW-6 MSW-6- MSW-6- Model Number Designation F- MS -6 - -3 H1 Valve Direction of Design Design Special Seals Series Number Size Flow Number Standard F: Special Seals for Phosphate Ester Type Fluids (Omit if not required) Instructions MS: -Line MS: -Line MSW: & Line Throttle and Check Modular Valves 6 : Metre-Out : Metre-In 3 H1 To make flow adjustment, loosen the Lock Nut then turn the flow adjustment screw clockwise to limit the flow. e sure to re-tighten the lock nut after the adjustment. F 9
Typical Performance Characteristics Hydraulic Fluid: Viscosity 35cSt, Specific Gravity.85 Pressure Drop Pressure Drop P 2 15 1 5 -Line : MS - 6 -Line : MS - 6 P & T - Line 1 2 3 4 5 L/min. Pressure Drop at Throttle Fully Open Pressure Drop P 25 2 15 1 5 1 2 3 4 5 L/min. L/min. Metred Flow vs. Screw Position P : Differential Pressure Kgf/cm 2 5 4 3 2 1 P = 1 P = 7 P = 14 P = 21 P = 5 P = 3 P = 2 P = 1 P = 5 2 4 6 8 1 14 Turn of Flow dj. Screw (Fully Open) 25 Pressure Drop for Free Flow Pressure Drop P 2 15 1 5 Throttle Closed Throttle Fully Open 1 2 3 4 5 L/min. 1
MSW-6- -3H1 M8 Thd. x 16 Deep 2 Places Sling Fitting Screw 116 92 58 53 T 154 13 P DIMENSIONS IN MILLIMETRES 13.5 Dia. x Thru. 6 Places Lock Nut 19 Hex. Flow dj. Screw (for line) 8 Hex. Inc. Flow dj. Screw (for line) 8 Hex. Inc. Fully Extended 115.5 77 Fully Extended 385 85 6 MSW-6-...52 MSW-6-...33 Two Locating Pins 6 Dia. MS-6- -3H1 Spare Parts List Fully Extended 31 Fully Extended 115.5 T For other dimensions, refer to above (MSW-6) drawing. P Fully Extended 115.5 Mass.. Kg(pprox) List of Seals Sl. No. Name of Parts Part Nos. Quantity MS-6 MS-6 MSW-6 1 O-Ring SO-N-P14 1 1 2 2 O-Ring SO-N-P14 2 2 2 3 O-Ring SO-N-P28 4 4 4 4 O-Ring SO-N-P32 2 2 2 5 ackup Ring SO--P14 1 1 2 MS-6- -3H1 Note : When ordering the seals, please specify the seal kit numbers from the table below. 4.5 T Fully Extended 31 P For other dimensions, refer to above (MSW-6) drawing. F List of Seal Kits Model Nos. Seal Kit Numbers MS-6 MS-6 KS-MS-6-3 MSW-6 KS-MSW-6-3 11
Pilot Operated Check Modular Valves Specifications Model Numbers MP-6 - - -3H1 MP-6 - - -3H1 MPW-6 - - -3H1 Max. Operating Pressure Kgf/cm 2 Max. Flow L/Min. 25 5 Pilot-Drain Type Model No. Graphic Symbols Internal Pilot- Internal drain type External Pilot- External drain type External Pilot- Internal drain type MP-6 MP-6- MP-6 - - MP-6 - - MP-6 MP-6 - - MP-6 - - MPW-6 MP-6- MPW-6- Model Number Designation F- MP -6 S -2 - -3 H1 Special Seals F: Special Seal For Phosphate Ester Type Fluids (Omit if not required) Series Number MP: Pilot Operated Check for -Line MP: Pilot Operated Check for -Line MPW: Pilot Operated Check for --line Valve Size 6 Port Tapping Feature of Pilot-Drain Port *1 None : Taper Thread S: Straight Thread (pplicable only for Japanese std. JIS Cracking Pressure Kgf/cm 2 *2 Pilot-Drain Connection *1 This item applies only to External Pilot or External Drain Type. *2 Only None: internal Pilot-Internal Drain Type is available for MPW (for &-Line ) 2 : 2 4 : 4 None: Internal Pilot- Internal Drain : External Pilot- External Drain : External Pilot- Internal Drain Design Number Design Standard 3 H1
Typical Performance Characteristics Hydraulic Fluid: Viscosity 35cSt, Specific Gravity.85 Pressure Drop 25 Pressure Drop for Reversed Controlled Flow 25 Pressure Drop P 2 1 -Line: MP-6 -Line: MP-6 1 2 3 4 5 L/min. P&T-Line Pressure Drop P 2 1 1 2 3 4 5 L/min. Pressure Drop for Free Flow Min. Pilot Pressure Pressure Drop P 3 2 1 MP -6-4 2 MP -6-2 MP -6-4 1 2 3 4 5 L/min. MP -6-2 1 MP-6- -3H1 MP-6- -3H1 MPW-6- -3H1 M8 Thd. x 16 Deep 2 Places Sling Fitting Screw Min. Pilot Pressure (PP) (Internal Pilot-Internal Drain Type) 53 154 13 45 4 3 PP P2 P1 5 1 15 2 25 13.5 Dia. x Thru. 6 Places Supply Pressure (P2) DIMENSIONS IN MILLIMETRES F 116 92 T P 4.5 77 235 85 6 Two Locating Pins 6 Dia. pprox. Mass.. 11.6 Kg. 285 13
MP-6- - --3H1 (External Pilot-External Drain Type) 4.5 285 63 23 58 Pilot Port "C" Thd. Drain Port "C" Thd. DIMENSIONS IN MILLIMETRES pprox. Mass.. 13 Kg. 4.5 MP-6- - --3H1 (External Pilot-Internal Drain Type) 253 Pilot Port "C" Thd. 52 58 Model Numbers MP-6- - -3H1 Thread Size C Thd. Rc 3/8 = 3/8 SP.Tr. MP-6S- - -3H1 G 3/8 For other dimensions, refer to Internal Pilot-Internal drain type drawing above. pprox. Mass.. 11.6 Kg. Pilot Port "C" Thd. Drain Port "C" Thd. MP-6- - --3H1 (External Pilot-External Drain Type) 58 23 63 9.5 285 pprox. Mass.. 13 Kg. Pilot Port "C" Thd. MP-6- - --3H1 (External Pilot-Internal Drain Type) 58 58.5 253 DIMENSIONS IN MILLIMETRES 52 pprox. Mass.. 11.6 Kg. For other dimensions, refer to Internal Pilot- Internal drain type drawing above. Model Numbers MP-6- - -3H1 Thread Size C Thd. Rc 3/8 = 3/8 SP.Tr. MP-6S- - -3H1 G 3/8 Spare Parts List Sl. No. List of Seals Quantity Internal External Name of Part Nos. Pilot- Pilot- Parts Internal External Drain Drain 1 O-Ring SO-N-P14 2 2 2 2 O-Ring SO-N-P26 1 3 O-Ring SO-N-P28 4 4 4 4 O-Ring SO-N-P32 2 1 1 5 O-Ring SO-N-P36 1 1 External Pilot- Internal Drain Note : When ordering the seals, please specify the seal kit numbers from the table below. List of Seal Kits Model Nos. Seal Kit Numbers MP-6- MP-6- KS-MP-6-3 MPW-6- MP-6 - - KS-MP-6--3 MP-6 - - MP-6 - - KS-MP-6--3 MP-6 - - 14
Mounting olt Kits for 3/4 Modular Valves Valves are mounted with six stud bolts. Valve combination varies according to the circuit type. Hence, the mounting bolt kits are available on a combination type basis. When ordering the mounting bolt kit, be sure to give the bolt kit model number from the table below. Model Number Designation MK -6-4 -3 Series Number Size of Modular Valve olt Number Design Number MK : Mounting olt kits for Modular Valves 6 1,2,3,4 3 olt Kits Selection Chart olt Kit Model Numbers Quantity of Valves to be Stacked Sol. Cont. Pilot Operated Directional Valves (DSHG-6) Modular Valve pprox. Mass Kg. MK-6-1-3 1 1 1.1 MK-6-2-3 1 2 1.5 MK-6-3-3 1 3 2. MK-6-4-3 1 4 2.4 olt Kit Composition Stud olt.. 6 Pcs. Nut... 6 Pcs.}1 Set Nut Stud olt Mounting olt Kits MK-6- -3 Stud olt M oth ends 19 19 3 4 Solenoid Controlled Pilot operated Directional Valve 6 Series Modular Valves [Example] 6 Series Modular Valve ssembly DIMENSIONS IN MILLIMETRES Model Numbers mm MK-6-1 161 MK-6-2 246 MK-6-3 331 MK-6-4 416 F Nut M 2 3 18 Dia. 1 15
Mounting Surface Dimensions For 3/4 Modular Valves When mounting 6 series modular valve, be sure to use a sub-plate for 3/4 solenoid controlled pilot operated directional valves. Name Sub-plate Model Number Catalogue No. Sub-plate for 3/4 solenoid Controlled pilot Operated Directional Valves DHGM-6-5 EIC-E-13 lso, When no sub-plates are used, be sure to use the following mounting surface. 23 Dia. (Max.) 4 Places M Thd. x 24 Deep 6 Places.5 156 13.2 1.7 1.8 94.5 77 53.2 29.4 4.8 7 Dia. x 8 Deep Locating Pins 2 Places 11 Dia. (Max.) 2 Places 17.5 T P 19.1 73.1 92.1 Minimum Pitch 5 74.6 116 17.5 29.5 T P 16