TESTO ITC KORINNA 28mm Allargato LOAD SENSING MONOBLOCK DIRECTIONAL CONTROL VALVE

Transcription

1 ESO IC KORINN 28mm llargato LOD SENSING MONOLOCK DIRECIONL CONROL VLVE

2 Features Simple, compact and heavy duty designed 2 sections monoblock valve, for hydraulic systems with load sensing variable displacement pump. H Each spool has indipendent load check valve. H arallel circuit. H wide variety of service port valves. H vailable with manual, electro--hydraulic and remote with flexible cables spool control kits. H Diameter 18 mm in interchangeable spools. dditional information his catalogue shows the product in the most standard configurations. lease contact Customer Service Dpt. for more detailed information or special request. WRNING! ll specifications of this catalogue refer to the standard product at this date. Walvoil, oriented to a continuous improvement, reserves the right to discontinue, modify or revise the specifications, without notice. WLVOIL IS NO RESONSILE FOR NY DMGE CUSED Y N INCORREC USE OF HE RODUC. 7 rd edition November 22: his edition supercedes all prior documents. 2 D1E

3 Contents Contents Specifications Dimensional data Hydraulic circuit erformance data Ordering codes Spool side spool positioners side options ort relief options Special configurations Installation and maintenance D1E 3

4 Working conditions his catalogue shows technical specifications and diagrams measured with mineral oil of 46 mm 2 /s cst viscosity at 4 C temperature. Nominal flow rating 8 l/min Operating pressure (maximum) 25 bar 36 psi Max. back pressure on outlet port 1 bar 145 psi Internal leakage () Fluid p=1 bar psi fluid and valve at 4 C 3 cm 3 /min.18 in 3 /min Mineral oil Fluid temperature with NR (UN -N) seals from --2 to 8 C with FM (VION) seals from --2 to 1 C Viscosity operating range from 15 to 75 mm 2 /s from 15 to 75 cst min. 12 mm 2 /s 12 cst max 4 mm 2 /s 4 cst Max level of contamination 19/16 -- ISO 446 mbient temperature from --4 to 6 C NOE - For different conditions please contact Customer Service. 4 D1E

5 Dimensional data Valve code roduction batch : = production year (2) 1 = progressive number Valve type WLVOIL DLM142/ MDE IN ILY osition 3 osition 2 osition osition b1 a1 WLVOIL DLM142/ MDE IN ILY a2 b2 M M Standard threads ORS S (ISO 228/1) UN -UNF (ISO ) MERIC (ISO 262) Inlet and outlet G 3/4 1 1/ UN--2 (SE 12) M27x2 and ports G 1/2 7/8--14 UNF--2 (SE 1) M22x1,5 Load sensing port G 1/4 9/ UNF--2 (SE 6) M14x1.5 D1E 5

6 Hydraulic circuit o prevent spools sticking due to temperature shock, the valve is available in a special configuration with the connection of the pressure line with tank through a small orifice (.6 mm /.24 in). here is a small amount of flow constantly going to tank, but this system keeps the valve body warm with spools in neutral position. his configuration is particularly suitable for application in cold environment. Load check valve llen wrench 8-24 Nm / 17.7 lbft llen wrench Nm / 7.2 lbft llen wrench 6 24 Nm / 17.7 lbft Shuttle valve ports lines Load sensing signal () ank line ports lines ressure line Optional plug with metering hole Requires special valve body kit: contact Customer Service mm.24 in Ex.: DLM142/2--/113SL/18MSL--<CVN> Ex.: DLM142/2--/113SL/18MSL--FC.6--<CVN> 6 D1E

7 erformance data (pressure drop vs. flow) Inlet to work port From inlet to (spool in position 1) or (spool in position 2) ressure drop 4 (bar) ( 2 ) 1 ( 1 ) 54 (psi) Flow (l/min) Work port to outlet From port (spool in position 2) or port (spool in position 1) to outlet. 4 (bar) 3 54 (psi) ressure drop ( 1 ) 2 ( 2 ) Flow (l/min) D1E 7

8 Ordering codes Description example: 1 st section 2 nd section DLM142/ 2 - / 1 13 SL / 18MSL. 1(G3-1) - <CVN> * ort relief valve setting in bar Valve is supplied painted as standard, with one coat of rimer black antirust paint 3. 8M U C SL Q 1. ody kit * YE CODE DESCRIION 2-5KC sections Include body, seals, rings and load check valves. 2. Spool page 1 With 8M kit: double acting, 3 postions, and closed in neutral position With 13 kit: double acting, 4 positions, and to tank in 4th positions (float) YE CODE FLOW (with 1 bar / 145 psi stand by) 1 3CU l/min 1R 3CU l/min 3. side spool positioner page 11 YE CODE DESCRIION 8M 5V81824 With spring return in neutral position 13 5V13184 With detent in position 3 and spring return in neutral position NOE -- (*) Items are referred to S thread. 4. side options page 12 YE CODE DESCRIION SL - rearranged for mechanical remote control Q 5EL1822 rearranged for cable remote control 5. ort relief options page 13 YE CODE DESCRIION nti -shock valve (G3-1) 3XCR28113 Range 1 to 25 bar / 145 to 36 psi standard setting 1 bar / 145 psi (G4-2) 3XCR28114 Range 2 to 315 bar / 29 to 46 psi standard setting 2 bar / 29 psi nti -shock and anti -cavitation valve U(G2-63) XCR38112 Range63 to 125 bar / 9 to 18 psi standard setting 63 bar / 9 psi U(G3-1) XCR38115 Range 1 to 25 bar / 145 to 36 psi standard setting 1 bar / 145 psi U(G4-2) XCR38114 Range 2 to 315 bar / 29 to 46 psi standard setting 2 bar / 29 psi Standard setting is referred to 1 l/min flow. C XCR4811 nti -cavitation 3 3X52429 and ports valve blanking plugs 8 D1E

9 Special configuration - page 17 Ordering codes DLM142 valve with proportional electro -hydraulic control Description example: DLM142/2--F/1Z 13EX / KE2N /1Z 8EX - 12VDC --<CVN> * Code of this configuration: DLM142 valve with quick -action coupling Description example: DLM142/2--/113SL/18MSL-- MCH4 --<CVN> * Code of this configuration: Lock cam not included (for code see page 24) DLM142 valve with proportional electro -hydraulic control and quick -action coupling Lock not included (for code see page 24) Description example: DLM142/2--F/1Z13EX/KE2N /1Z 8EX--12VDC--MCH4--<CVN>* Code of this configuration: D1E 9

10 Spool ype 1 and 1R " stroke = + 7 mm +.28 in closed, with load sensing () line to tank stroke = - 7mm -.28 in stroke = mm -.26 in -- stroke = - 12 mm -.47 in (floating circuit) NOE -- Only for positioner kit type 13 erformance data 2 (l/min ) Flow Spool metering () (on ports) = 1 bar / 145 psi.1.2 (in) Stroke (mm) () / Q = 165 l/min () / Q = 12 l/min () / Q in = 165 l/min () / Q in = 9 l/min = ype 1 = ype 1R ressure 4 (bar) ressure drop in position 3 (in 1 st section) Flow (l/min) (psi) D1E

11 side spool positioner With spring return 8M kit Supplied with standard spring type (see force--stroke diagram). vailable with heavier spring type (8 code: 5V8181) or type C (8MC code: 5V828). 1 2 llen wrench Nm / 4.9 lbft llen wrench 6 24 Nm / 17.7 lbft Force -stroke diagram (in) (N) 15 (lbf) C Force C Stroke (mm) With detent on 4 th position float circuit 13 kit llen wrench Nm / 4.9 lbft Wrench 6 24 Nm / 17.7 lbft 4 (N) 2 Force -stroke diagram (in) From position to 1 From position to 2 8 (lbf) 4 Force From position 2 to Stroke (mm) Locking -unlocking area Locking force:3 N / 67.4 lbf ±1% Unlocking force:27 N / 6.7 lbf ±1% D1E 11

12 side options SL prearranged for mechanical remote control 1 2 Spool dimension 3CU H Q cable remote control Waterproof cap prearranged for remote control with flexible cable. 1 2 Wrench 13 Wrench Nm / 7.2 lbft Wrench 24 Wrench Nm / 31 lbft llen wrench Nm / 4.9 lbft CD flexible cable to be ordered separately NOE - For more information concerning remote cable control require appropriate documentation. 12 D1E

13 ort relief options nti -shock valve 1 ( G 3-1 ) Spring type (3, 4). djustment type (G, H). ressure setting in bar mounted on port. 2 mounted on port. 3 mounted on and ports. djustment type G: with screw H: valve set and locked max Notch 1.5 mm /.6 in Wrench Nm / 31 lbft Wrench Nm / 31 lbft erformance data ressure 4 (bar) Spring nr. 3 (blue band) Flow (l/min) (psi) ressure 4 (bar) Spring nr. 4 (red band) Flow (l/min) (psi) (% ) ressure 15% 95% 9% 1% Response time.18 RESONSE IME 1 bar 145 psi ime ( ) D1E 13

14 ort relief options nti -shock and anti -cavitation valve U 1 ( G 3-1 ) ressure setting in bar. Spring type (2, 3, 4). djustment type (G, H). U1 U2 U3 1 mounted on port. 2 mounted on port. 3 mounted on and ports. djustment type G: with screw H: valve set and locked max Notch 1.5 mm /.6 in Wrench Nm / 31 lbft Wrench Nm / 31 lbft erformance data Spring nr. 2 (green band) Spring nr. 3 (blue band) Spring nr. 4 (red band) 4 (bar) 3 (psi) 45 4 (bar) 3 (psi) 45 4 (bar) 3 (psi) 45 ressure ressure ressure Flow (l/min) Flow (l/min) Flow (l/min) Response time ressure drop (% ) ressure 15% 95% 9% 1%.45 RESONSE IME 18 bar 26 psi OVERSHOO.6 RNSIEN RECOVERY IME 1 bar 145 psi ime ( ) ressure 6 (bar) 75 (psi) Flow (l/min) 14 D1E

15 ort relief options nti -cavitation valve C 1 1 mounted on port. 2 mounted on port. 3 mounted on and ports. C1 C2 C3 erformance data ressure drop (bar) 18 3 (psi) Wrench Nm / 31 lbft ressure Flow (l/min) 3: port relief valve blanking plug llen wrench 1 42 Nm / 31 lbft D1E 15

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17 Special configurations roportional electro- hydraulic control page 18 Quick- action coupling page 22 roportional electro- hydraulic control and quick- action coupling page 23 D1E 17

18 special configurations roportional electro -hydraulic control Dimensional data Spool positioner kit type 13EX (4 positions). Code: 5V , b1 a1 a2 b X M Spool positioner kit type 8EX (3 positions). Code: 5V M8 n.4 holes Special body kit (special body). Code: 5KC Electro -hydraulic proportional module type KE2N -12VDC Code: 5IDR NOE -- For threads refer to page 5 18 D1E

19 special configurations DLM142 roportional electro -hydraulic control Hydraulic circuit Standard execution is with closed center circuit for variable displacement pump CV CV SV (1) (1) (2) (2) CV F X M Es.: DLM142/2--F/1Z13EX/KE2N/1Z8EX--12VDC--<CVN> LEGEND (1) -(1) 1 st section proportional solenoid pressure reducing valves (2) -(2) 2 nd section proportional solenoid pressure reducing valves CV check valve on pilot line CV load check valve on 1 st section CV load check valve on 2 nd section F filter SV shuttle valve D1E 19

20 special configurations roportional electro -hydraulic control KE2N -12VDC module ressure gauge connection (plugged) G 1/4 thread llen wrench 6-24 Nm / 17.7 lbft X M ccumulator connection G 1/4 thread Section - llen wrench 3 Section Nm / 4.9 lbft ressure reducing solenoid valve Filter kit for pressure reducing valve pilot line llen wrench Nm / 7.2 lbft 9 (l/min) ort pressure 1 bar 145 psi Solenoid current () orts flow Spool metering ositioner kit type 8EX M junior timer male type connector Steel wire filter 6x5 mm (.236x.197 in) - 6 µ Solenoid valve operating features Max. flow on ports : 6 l/min Max. pressure on inlet..... : 315 bar / 46 psi Min. feeding pressure : 4 bar / 58 psi Max. back pressure on outlet : 2 bar / 29 psi Max. internal leakage : 3 cm 3 /min /.18 in 3 /min Max. hysteresis :.5 bar / 7.3 psi ositioner kit type 13EX Nominal voltage : 12 VDC Coil resistance (2 C). : 5.3 Ohm Max. current : 1.5 Duty cycle : 1% Operating frequency... : 125 Hz Weather protection.... : I67 llen wrench 6 24 Nm / 17.7 lbft llen wrench 6 24 Nm / 17.7 lbft llen wrench Nm / 4.9 lbft llen wrench Nm / 4.9 lbft D1E

21 special configurations DLM142 roportional electro -hydraulic control Example of electrical connection DLM142/2 -F directional valve Solenoid valve 1 Solenoid valve VDC battery Solenoid valve 1 Solenoid valve 2 M junior timer female connector CED25 digital electronic unit o diverter valves 1 Cable kit KCD7 2 3 Joystick MD2LHC5C 35 poles male connector ISO44 female connectors 9 poles female connector type D -9/RS232 for electronic unit programming rm descent L1 L2 4 5 ucket lifting 2 ucket descent 2 1 (yellow push-button) : FS / SLOW 2 (red push-button) : FLOING 3 (orange push-button) : DIVERER VLVE 1 4 (green push-button) : DIVERER VLVE 2 5 (gray push-button) : DIVERER VLVE 3 L1 (yellow led) : FS / SLOW L2 (red led) : FLOING 1 rm lifting NOE -- For further information about electrical system requirements, contact Customer Service. D1E 21

22 special configurations Quick -action coupling For DLM142 valve with manual control his prearrangement requires special valve body kit code: 5KC1933, wich include body, seals, rings, load check valves, fixing flange and quick--action coupling joints. his configuration needs special positioner kit type 13 code: 5V body kit special kit type13 Quick -action coupling joint type 12.5 UNI -ISO 7241/ Fixing flange M b1 a1 a2 b2 22 D1E

23 special configurations DLM142 Quick -action coupling For DLM142 valve with proportional electro -hydraulic control his prearrangement requires special valve body kit code: 5KC1932, wich include body, seals, load check valves, fixing flange and quick--action coupling joints. body kit prop. electro--hydraulic control (see page 18) Quick -action coupling joint type 12.5 UNI -ISO 7241/ M1 Fixing flange b1 a1 a2 b2 X M D1E 23

24 special configurations Quick -action coupling Lock cam kit Code: 5X72 Lock cam code: 2X721 rotective box code: 2X722 Lock pin code: 2X723 DLM142 valve with prearrangement (see pages 22, 23) NOE -- vailability for different type of quick -action coupling on request, contact Customer Service. Dimensional data b2 2 M22x a2 a1 G 9 electric gland b1 1 Joint ISO D1E

25 Installation and maintenance he DLM142 valve is assembled and tested as per the technical specification of this catalogue. efore the final installation on your equipment, follow the below recommendations: -- the valve can be assembled in any position; in order to prevent body deformation and spool sticking mount the product on a flat surface; -- in order to prevent the possibility of water entering the spool control kit, do not use high pressure wash down directly on the valve; -- prior to painting, ensure plastic port plugs are tightly in place X Standard configuration Electro -hydraulic configuration Fitting tightening torque - Nm / lbft HRED YE and ports and ports, X, M ports S (ISO 228/1) G 3/4 G 1/2 G 1/4 With O--Ring seal 7 / / / 18.4 With copper washer 7 / / / 22.1 With steel and rubber washer 7 / / / 11.8 UN--UNF (ISO ) 1 1/ UN--2 (SE 12) 7/8--14 UNF--2 (SE 1) 9/ UNF--2 (SE 6) With O--Ring seal 95 / / / 22.1 MERIC (ISO 262) M27 x 2 M22 x 1.5 M14 x 1.5 With O--Ring seal 9 / / / 18.4 With copper washer 6 / / / 22.1 With steel and rubber washer 7 / / / 14.8 NOE -- hese torque are recommended. ssembly tightening torque depends on many factors, including lubrication, coating and surface finish. he manufacturer shall be consulted. D1E 25

26 Installation and maintenance Chamfer O -Ring seals 18x2.5 code: 4GU11825 Load check valve Holding O -Ring bushing code: 3NE13441 Sealing edge ositioner kit ort valve blanking plug ody Spool Normally spools are interchangeable. Verify the smoothness during the assembly NOE -- ll articulated parts inside cap are lubricated with synthetic base grease grade NLGI2 (not for directional valve with electro -hydraulic control). Malfunction Cause Remedy External leakage control kit or opposite side. Excessive internal leakage on and ports. Dropping load during transition while raising Worn spool seal due to mechanical actuation or high back pressure. Increase clearance between spools and body due to high wear High leakage on the load check valve. Locate the leakage and replace the seal. Check back pressure level. Replace the directional control valve and check the oil contamination level. Remove the load check valve and clean the seat. Remove and clean or replace the port ort relief valve open. relief valve. Inability to build pressure on and ports. Low pump pressure and flow. Check the pump and circuit. Electro--hydraulic control unproportional movement. Low voltage supply. roportional pressure reducing valve blocked. High spool friction. Check electric system. Remove the valve and clean it. Remove the spool an clean it carefully. Only for electro -hydraulic configuration 26 D1E

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