Pu. EC-01 DIRECTIONL CONTROL (LD) DIRECTIONL ND FLOW CONTROL (LD) SOLENOID OPERTED DIRECTIONL CONTROL (LDS) RELIEF (L) / SOLENOID CONTROLLED RELIEF (LS) VLVES Up to 31.5 MPa (4570 PSI), 5500 L / min (1453 U.S. PM) uken Logic s comprise cartridge typed elements and covers with pilot passages. Various types may e comined for direction, flow rate and pressure control. uken Logic s can e incorporated in manifold locks to form optimum integrated hydraulic circuits and compact hydraulic power units. eing a poppet type, the elements permit high-pressure, high flow rates, high speed and shockless shifting with low pressure drop. Typical applications include steel mill machines, injection moulding machines, machine tools and so on. In addition, uken Logic s cavity specifications conform to ISO standards. Features Multifunction performance in terms of direction, flow and pressure can e otained y comining elements and covers. -type elements virtually eliminate internal leakage and hydraulic locking. ecause there are no overlaps, response times are very high, permitting high-speed shifting. For high pressure, large capacity systems, optimum performance is achieved with low pressure losses. Since the logic valves are directly incorporated in cavities provided in locks, the system is free from prolems related to piping such as oil leakage, viration and noise, and higher reliaility is achieved. Multi-function logic valves permit compact integrated hydraulic systems which reduce manifold dimensions and mass and achieve lower cost conventional types. Note: Please refer to the catalogue (No. Pu.JC-00-1) for the logic valves for details aout each performance characteristics and dimensions. No.1
Directional Logic (LD) Directional / Directional and Flow Solenoid Operated Directional Relief / Solenoid led Relief Structure and Functions VLVES Structure and Functions s shown elow, a logic valve consists of a cover, a sleeve, poppets and a spring incorporated in a lock. lthough it is a simple 2-port valve designed to open and close the poppets in accordance with the pressure signals from the pilot line, it serves as a multifunctional valve for controlling the direction, flow and pressure y controlling the pressure signals. Standard covers have several pressure signal ports (pilot ports) and control valves for control purposes are availale. The covers are spigot mounted. There is no risk of oil leakage. asic Structure Relief Logic (L) Directional & Flow Logic (LD- - -S-1~3) Spring Sleeve with cushion Ratio of poppet area Solenoid Operated Directional Logic (LDS) Cover without cushion (100%) 50%...LD.LDS 4.2%...L.LS 150%...LD.LDS 104.2%...L.LS Solenoid led Relief Logic (LS) Functions, working area ratios and features Function Direction Direction and Flow Symols Working area ratio ( : ) (2 : 1) Features shape out cushion (LD/LDS- - ): high-speed shift -S): Shockless shift No leakage etween port and Flow to and to are possile Response time and shock can e adjusted y orifice selection. / cushion (LD/LDS- - shape cushion (LD- - -S-1/2/3): flow control. No leakage etween port and Flow to only is possile. Response time and shock can e adjusted y orifice selection. Relief (24 : 1) Remote and unloading control is possile with vent circuit (L- - ). Two or three pressure controls are possile in comination of solenoid operated directional valve and pilot relief valve (LS- - ). No.2
Directional / Directional and Flow LD-,,32,40,50,63,80,100 / Numer / List of s VLVES These valves are 2-way directional valves designed to open and close the circuits in accordance with pressure signals from the pilot lines. They are used as multifunctional valves for controlling flow directions or flow directions and rates. Standard covers provided with a choice of several control valves are availale so that optimum valves can e selected for control purposes. LD-32 LD-80 No. Rated Flow Max. Operating Cracking Ratio of rea pprox. kg(ls.) List of s Symols 32 40 50 63 80 100 LD- 130 (34.3) 1.6 (3.5) LD- 350 (92.5) LD-32 500 (132) LD-40 850 (2) Refer to 31.5 (4570) No. LD-50 1400 (370) LD-63 2100 (555) LD-80 3400 (898) LD-100 5500 (1453) 2 : 1 (nnular area 50%) 3.0 (6.6) 5.3 (11.7) 9.1 (20.1) 14.8 (32.6) 29.8 (65.7) 48 (106) 86 (190) Note: The rated flow is values with a pressure drop of 0.3 2 MPa (44 PSI) [fluid viscosity 35 mm /s (4 SSU)]. Numer Directional Standard (None) Check (4) S LD - 32-05 - S -1-05 - 12 Design numer LD-,, 32, 40, 50, 63...12 LD-80, 100...11 of orifice Location of orifice (see the tale right) None: no orifice : Pilot port : Pilot port S: Port leading to spring Cover type (See the tale right) None, 1, 2, 3, 4, 5 shape None: out cushion S: cushion Cracking pressure ( ) None: No Spring 05: 0.05 MPa (7 PSI) 20: 0.2 MPa (29 PSI) :,, 32, 40, 50, 63, 80, 100 Directional control logic valves Directional & flow control logic valves shapes The type without a cushion and the type with a cushion are oth suitale for high-speed shifting and shockless shifting respectively. For directional and flow control logic valves, e sure to specify "poppets with cushions". Directional & Flow Shuttle (5) Stroke djuster (1) Check & Stroke djuster (2) Shuttle & Stroke djuster (3) S Z2 Z2 No.3
Solenoid Operated Directional LDS-,32,40,50,63 / Numer / List of s VLVES These solenoid operated directional control logic valves are composed of directional control valves and solenoid operated directional valves comined together. The solenoid operated directional valves serve to switch pilot lines and the directional control valves are used to control the direction of the main circuits. Covers provided with various control valves are availale to provide optimum control. No. LDS- LDS-32 LDS-40 LDS-50 LDS-63 Rated Flow 350 (92.5) 500 (132) 850 (2) 1400 (370) 2100 (555) Max. Operating 31.5 (4570) Cracking Refer to No. Ratio of rea 2 : 1 (nnular area 50%) pprox. kg(ls.) 4.4 (9.7) 6.7 (14.8) 10.5 (23.2) 18.6 (41.0) 33.6 (74.1) Note: The rated flow is values with a pressure drop of 0.3 MPa 2 (44 PSI) [fluid viscosity 35 mm /s (4 SSU)]. List of s Symols 32 40 50 63 Numer LDS - 32-05- S -1-O- 05-100 - C - N - 13 Design No. Type of electrical conduit connection None: Terminal ox N: Plug-in connector Type of manual override None: Manual override pin C: Push utton and lock nut (Option) Coil type : C, R D : C DC rectified : DC, RQ :C DC rectified (quick return) of orifice Location of orifice None: No orifice P: Pilot port P, : Pilot port : Pilot port, : Pilot port Solenoid operated valve None: solenoid operated valve O: out solenoid operated valve Cover type (See the tale right) 1, 2, 3, 4, 5, 6 shape None: out cushion S: cushion Cracking pressure ( ) None: No spring 05: 0.05 MPa (7 PSI) 20: 0.2 MPa (29 PSI) :, 32, 40, 50, 63 Solenoid operated directional control logic valve Open with Shuttle (6) Closed (1) Open (2) Closed with Shuttle (3) Open with Shuttle (4) Closed with Shuttle (5) S Note: In case of LDS- - - - -O (without solenoid operated valve), the graphic symol for the solenoid operated valve is excluded. No.4
Relief L-,,32,50 / Numer / List of s VLVES These relief logic valves are used to protect pumps and control valves from excessive pressure and control the pressures of their hydraulic lines at constant levels. the help of vent lines, they are also capale of remote and unload control. Numers L-- - -10 L-- - -10 L-32- - -11 L-50- - -11 Max. Operating 31.5 (4570) Pres. dj. Range 0.4-31.5 (60-4570) Max. Flow 1 (33) 0 (66) 500 (132) 1200 (317) pprox. kg(ls.) 3.6 (7.9) 4.5 (9.9) 6.7 (14.8).1 (35.5) Numer L - 32 -V - -11 Design numer L-,...10 L-32, 50...11 List of s Symols 32 50 Cover type (See the tale right) None,, Z2 Specify only for high-vent types size:,, 32, 50 Relief logic valve Standard (None) Use high-vent pressure types if the shifting time from unloading to on-loading is reduced. Vent controlled () Vent controlled (Z2) Z2 No.5
Solenoid led Relief LS-,,32,50 / Numer VLVES These solenoid controlled relief logic valves are composite control valves having solenoid controlled directional and pilot relief valves and vent restrictors comined together. This configuration eliminates pipes from the vent circuits of relief logic valves. They are used to put pumps into unloading operation, with the solenoid controlled directional valves serving to select pilot lines, or to place hydraulic system two or three pressure controls, with the pilot relief valves in action. Numers LS-- - - -13 LS-- - - -13 LS-32- - - -13 LS-50- - - -13 Max. Operating 31.5 (4570) Pres. dj. Range 0.4-31.5 (60-4570) Max. Flow 1 (33) 0 (66) 500 (132) 1200 (317) pprox. kg(ls.) 8.8 (19.4) 9.7 (21.4) 11.9 (26.2) 21.3 (47.0) Numer LS - 32 - V - 1-100 - C- N -13 Design numer Type of electrical conduit connection None: Terminal ox N: Plug-in connector Type of manual override None: Manual override pin C: Push utton and lock nut (Option) Coil type : C D : DC R : C DC rectified Cover type (See the following page) 0: No solenoid operated valve 1: closed, for unloading (Solenoid operated valve spool type: 23) 2: open, for unloading (Solenoid operated valve spool type: 23) 3: closed, with vent restrictor (Solenoid operated valve spool type: 23) 4: open, with vent restrictor (Solenoid operated valve spool type: 23) 5: 2-pressure control (Solenoid operated valve spool type: 22) 6: 3-pressure control (Solenoid operated valve spool type: 3C9) 7: 2-pressure control and unloading (Solenoid operated valve spool type: 3C3) Specify only for high-vent types size:,, 32, 50 Solenoid controlled relief logic valve Use high-vent pressure types if the shifting time from unloading to on-loading is reduced. No.6
Solenoid led Relief LS-,,32,50 List of s VLVES Symols 32 50 Symols 32 50 out Solenoid (0) Two- (5) Closed for Unloading (1) a Open for Unloading (2) Three- (6) a Closed with Vent Restrictor (3) Two- and Unloading (7) Open with Vent Restrictor (4) No.7