Solenoid Operated Proportional Directional Control Valve (with Pressure Compensation, Multiple Valve Series)

Transcription

1 Solenoid Operted Proportionl Directionl Control Vlve (with Pressure Compenstion, Multiple Vlve Series) Hydrulic circuit (Exmple) v Fetures hese stcking type control vlves show pressure compensted type proportionl flow rte chrcteristics nd control the flow rte in proportion to electricl current regrdless of the lod volume. Comining the vlve with vrile displcement pump enles construction of power mtch circuit tht outputs the required pressure/flow rte. Enles individul flow rte control t ports nd B. his product comines n inlet vlve lock nd solenoid operted proportionl directionl control vlves, in tht order, y mounting ech vlve lock on mnifold lock. here re seprte mnifold locks nd su-locks for ech vlve lock, nd up to 8 vlve locks cn e connected ccording to requirements nd clmped together with n end lock using through olts. (Block-uild system) Nomenclture P B Z B his vlve is stcking type vlve dopting the lock-uild system. he vlves cn e delivered set up to meet customer requirements. When plcing n order, split the product into vlve locks s follows nd specify the model code of ech vlve lock. Inlet vlve lock (MUV, MDM) or connection plte (N) Su-lock for inlet vlve lock ( UV, DM) First directionl control vlve (MEV) Su-lock for first directionl control vlve ( EV) Second directionl control vlve (MEV) Su-lock for second directionl control vlve ( EV) End plte (P) When two or more vlves with the sme model code re included, stte the model codes of the individul vlves s shown ove. Inlet vlve lock MUV L MUV: Bypss type pressure compenstion vlve MDM: Reduction type pressure compenstion vlve 2 Port size (nominl dimeter) 3 Mount type : Su-lock type MDM L Mximum operting pressure L: 21 MP {210 kgf/cm 2 } 5 Unloding pressure (Pressure compenstion structure differentil pressure) 3: Differentil pressure of 0.3 MP {3 kgf/cm 2 } 6: Differentil pressure of 0.6 MP {6 kgf/cm 2 } 6 Option code S: Pressure djusting screw type H: Pressure djusting hndle type 7 Option code N: Without pilot relief vlve J-64

2 Nomenclture Directionl control vlve lock MEV B L F F MEV: Solenoid operted proportionl directionl control vlve 2 Port size (nominl dimeter) 3 Mount type B: Gsket mount type 4 Mximum operting pressure L: 21 MP {210 kgf/cm 2 } 5 Return spring function F: Spring center type, spring offset type 6 Flow rte djustment structure F: For proportionl control 7 Spool differentil pressure code 3: Differentil pressure of 0.3 MP {3 kgf/cm 2 } 6: Differentil pressure of 0.6 MP {6 kgf/cm 2 } 8 Spool type (See the spool type tle) 9 Rted flow rte (See the specifiction tle) 10 Pilot code No designtion: Internl pilot type X2: With externl pilot port X2 * 1 11 Dringe code No designtion: Internl drin type 3: With externl dringe port 3 12 Solenoid code No designtion: DC 24 V solenoid N: DC 12 V solenoid 13 Option code No designtion: Without mximum flow rte djusting screw H: With mximum flow rte djusting screw Note: * 1 When using the vlve in comintion with reduction type pressure compenstion vlve (MDM), select model with n externl pilot port. Su-lock : Su-lock 2 Port size (nominl dimeter) 3 Mounting vlve lock EV: For MEV UV: For MUV DM: For MDM 4 Specil type No designtion: Stndrd Y1: With externl uxiliry pressure control port Y1 <pplicle to mounting vlve lock code EV> Z: With externl dringe port for externl unloding <pplicle to mounting vlve lock code EV> R: For vrile displcement pump control <pplicle to mounting vlve lock code UV> J PROPORIONL VLVES SERVO VLVES End plte P 1 2 P: End plte 2 Port size (nominl dimeter) J-65 Connection plte N 1 2 N: Connection plte 2 Port size (nominl dimeter)

3 Specifictions Port size Nominl dimeter Mximum operting pressure MP {kgf/cm 2 } Rted flow rte L/min Q1 Q2 QMX ½ ¾ {210} ¼ ½ port permissile ck pressure MP {kgf/cm 2 } 2.5 {25} (With internl drin) 7.0 {70} (With externl drin type) Relief vlve/unlod vlve Pressure djustment rnge MP {kgf/cm 2 } 3rd pttern: 0.3 to 21 {3 to 210} 6th pttern: 0.6 to 21 {6 to 210} Unloding pressure MP {kgf/cm 2 } 3rd pttern: 0.3 {3} 6th pttern: 0.6 {6} Pilot dringe Port Pilot pressure volume size MP {kgf/cm 2 } cm to 21 {12 to 210} (Difference from drin ck pressure) Current t strt of flow (nominl) m Current t mximum flow (nominl) m Coil resistnce (20 C) DC 24 V solenoid DC 12 V solenoid DC 24 V solenoid DC 12 V solenoid Ω DC 24 V solenoid 26 DC 12 V solenoid 6.5 Note: See the spring selection tle for the reltionships mong the rted flow rte, numer of directionl control vlve series, nd inlet vlve lock spring. Spring selection tle/unloding (differentil pressure) Numer of directionl control vlve series Q Rted flow rte Q Note: 3: Spring for differentil pressure of 0.3 MP {3 kgf/cm 2 } 6: Spring for differentil pressure of 0.6 MP {6 kgf/cm 2 } 8 : Spool type tle QMX 6 Spool type JIS grphic symols for hydrulic system Spool type JIS grphic symols for hydrulic system Spool type JIS grphic symols for hydrulic system Meter-in control Meter-in control Meter-out control BZ BZ F P BZ BZ B K Q Port locked BZ BZ C L R Port B locked BZ BZ D O S Port B locked Note: With spool types B, C nd D, the pssge re from port /B to port ecomes 20% of the stndrd rted re t the neutrl position, nd the flow rte to port is reduced ccordingly. 100% of the rted re is secured t the switching position. For spool K, port is locked with su-lock, nd for spools L nd O, port B is locked with su-lock. 12: Solenoid code nd pplicle driver model code Solenoid code Solenoid Coil resistnce (20 C) pplicle driver Ω Model code Power supply voltge No designtion DC 24 V solenoid 26 KC-6-10 C 100, 200, 220 V (Common for 50 nd 60 Hz) N DC 12 V solenoid 6.5 ZH-6-10 DC 24 V BZ BZ BZ BZ J-66

4 Mss (kg) Model No. Port size Port size Model No MUV UV/DM MDM EV MEV P N Hndling Use prllel thred joints since the use of tper thred joints my distort the vlve nd cuse mlfunctions. When setting the mximum pressure t the strt of opertion, fully open the relief vlve's djusting screw. djust the pressure only while the ctutor is stopped t the stroke end or the lod is the mximum. Clockwise rottion of the pressure djusting screw increses the pressure. he pressure chnges y 10 MP {100 kgf/cm 2 } per revolution of the djusting screw. Since the pump is unloded when the directionl control vlve is t the neutrl position, it is not necessry to fully open the relief vlve when strting the pump once the relief vlve hs een set. Directly connect the piping to the tnk without merging it with other piping. If it is merged with other piping, use lrger pipes. pilot pressure of 1.2 MP {12 kgf/cm 2 } is required to chieve full stroke of the vlve. In n ppliction where the lod is smll nd the pump pressure does not rise up to 1.2 MP {12 kgf/cm 2 }, select n externl pilot model nd provide the required pilot pressure. Since this vlve incorportes pressure compenstion vlve with meter-in control, ck pressure vlve such s counter lnce vlve needs to e inserted etween the outlet port of the ctutor nd this vlve if negtive lod will e pplied. his vlve cn incorporte only one pressure compenstion vlve. herefore, when two directionl control vlves re used, the pressure compenstion function opertes only for the directionl control vlve closer to the inlet vlve. Performnce curves Input current - Flow rte chrcteristics Flow rte (%) Solenoid current (m) Pressure (MP) { 10 kgf/cm 2 } Pressure chrcteristics Neutrl Unloding Lrge lod Lod pressure Low-speed signl Unloding pressure 0.6 MP ime (S) Neutrl Unloding Pump pressure Constnt differentil pressure (0.6 MP) J PROPORIONL VLVES SERVO VLVES J-67

5 Model code for uxiliry products KLP KLP: Pilot vlve (solenoid operted proportionl vlve) 2 Solenoid code S: Single solenoid W: Doule solenoid 3 Pilot code No designtion: Internl pilot type X: Externl pilot 4 Dringe code No designtion: Internl drin type : Externl drin type 5 Solenoid code No designtion: DC 24 V solenoid N: DC 12 V solenoid 6 Option code No designtion: Stndrd S: With throttle screw J-68

6 Externl dimension digrm 46 Mnul override pin Q Q P B2 3 P S X V 2 2 Y1 Z R 5B1 1 e he piping dimeter for uxiliry ports 3, V, X2, Y nd Z is G⅛ Dmping throttle Option code: H Hndle type Port 1 plug G"f" Cle dimeter: φ6 to φ10 J PROPORIONL VLVES SERVO VLVES Mnul override pin Ruer cp C 56 SOL. SOL. ir leeding screw B H Z D W I Port size Piping dimeter G thred ½ ¾ 1 1¼ 1½ Spool stroke B C D E F G H I K L M N P Q R S V M6 8 M6 8 M8 10 M8 10 M8 10 W Z d d e f ⅜ ⅜ ½ ¾ 1 u m n he plug cn e turned to the 90 or 180 position. R Mximum pressure djusting screw (not included in MDM) Dmping throttle vlve Hex key size 5, JIS B 4648 F Vlve mounting screw (oth sides) 10 K d2 d1 E E E G Mximum flow rte djusting screw (option code: H) u M L m N Mximum flow rte djusting screw (option code: H) MUV MDM MEV MEV P 30 Spce required to remove the cp. n 30 Note: 1. Energiztion of SOL. genertes flow P B. 2. he figure shows the 2-series vlve. J-69

7 Sectionl structurl digrm MUV L Section - Seling prt tle Prt model Prt No. Nme Quntity Prt specifictions MUV12 MUV16 MUV20 MUV25 MUV S S568-1 S S S NBR, Hs S S S S S NBR, Hs S S S S S NBR, Hs S S S S S NBR, Hs S S S S S NBR, Hs S S S S S NBR, Hs90 25 Bckup ring 1 For S For S For S For S For S Bis cut MDM L Seling prt tle Prt model Prt No. Nme Quntity Prt specifictions MDM12 MDM16 MDM20 MDM25 MDM S S568-1 S S S NBR, Hs (MDM12) S S S S S NBR, Hs90 4 (MDM16 to 32) 1 S S S S S NBR, Hs (MDM12) S S S S S NBR, Hs90 2 (MDM16 to 32) 17 1 S S S S S NBR, Hs90 18 Bckup ring 1 For S For S For S For S For S Bis cut 19 Bckup ring 1 For S For S For S For S For S Bis cut J-70

8 Sectionl structurl digrm MEV12, 16 nd P B J With MEV12, 16 nd 20 MEV25 nd 32 (prt No.: 16) Y B (prt No.: 16) Y B PROPORIONL VLVES SERVO VLVES Z P Z P B (prt No.: 16) (prt No.: 16) (prt No.: 14) (prt No.: 14) Seling prt tle Prt model Prt No. Nme Quntity Prt specifictions MEV12 MEV16 MEV20 MEV25 MEV S S NBR, Hs90 5 (MEV12 to 20) S S568-1 S S S NBR, Hs90 3 (MEV25, 32) 16 2 S S S S S NBR, Hs B P5 1B P7 1B P10 1B P10 1B P12 JIS B S S S S S NBR, Hs S S S S S NBR, Hs S S S S S NBR, Hs S S S S S NBR, Hs90 J-71