Directional Control Valve. Formerly the RSM290 Series. Technical data. Pressures / Flows Max. operating pressure set per port:

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1 X-Series Directional Control Valve DX- Formerly the RSM90 Series DX- is a sectional valve designed for max. operating pressures up to 000 psi (0 bar) and max. pump flows up to 80 l/min with Q-inlet. For standard inlets without flow regulator the recommended max. pump flows is 7 gpm (0 Lpm). The valve is available with to 0 working sections per valve assembly. DX- includes as standard a variety of sections, spools, spool controls and additional parts in a modular design. That makes the valve very flexible. The valve is, as standard, setup for both manual and remote control. The manual controlled sections can either be with open spool ends or encapsulated. The encapsulation decreases in a significant way the risk for external leakage and makes the valve well adapted for applications in demanding environment. The spool controls for remote control are generally designed as complete modules for assembling on one of the valve sides. DX- is in first place designed as an open center valve for fixed displacement pumps but can also be configured for variable displacement pumps. It is available with manual, hydraulic or electro hydraulic proportional remote control. DX- can be fully adapted for marine applications. The valve offers excellent operating characteristics, and good controllability on a wide range of machinery due to the specially designed spools. Low and uniform spool forces are the result of careful balancing of the flow forces. Q-inlet The Q-inlet is designed with a flow control (Q-function) that by-passes the major part of the pump flow to tank when the system is idling, still giving access to full pump flow when the working sections are operated. Besides greatly reducing heat generation this also provides improved operating characteristics. Applications The DX- is ideal for applications where you need excellent control characteristics such as cranes, sky-lifts, garbage Technical data Pressures / Flows Max. operating pressure set per port: P, P, PM: 000 psi 0 bar A, B: 800 psi 00 bar T, T, T: 00 psi 0 bar Pp: 0 psi 0 bar Tp: 7 psi bar X, Y: 0 psi bar Inlet without flow control function 7 gpm 0 Lpm Inlet with flow control function 8 gpm 80 Lpm F up to +7 F - C up to +80 C ±0.7 in ±7 mm Neutral position: 0 lb. 90 N Max. spool stroke: lb. 0 N Typical Nominal Inlet Flow: Fluid temperature range Further data Spool stroke nominal: Spool control force spool control 9M: Permissible contamination level: Spool control M: Equal or better than 0 /8 / as per ISO 0 Spool control H, EH: Equal or better than 0 /7 / as per ISO 0 Viscosity range: 0 00 mm/s (cst); Higher viscosity allowed at start up. Leakage at 0 psi, cst, 00 F cc/min (00 bar, cst and 0 C) Pressure fluid: Mineral oil and syntetic oil based on mineral oil HL, HLP according to DIN. Higher values are possible, depending on application. For applications with demands that exceed stated data above, please contact us for consideration. MTTFd value after consultation with HYDAC. trucks, demountable bodies, excavators, telescopic load handlers, skid-loaders, wheel loaders etc. Remote control As remote controlled the valve offers compact design with internal pilot oil supply, solenoids in a compact assembly on one side of the valve and integrated hand levers for manual override/manual operation. The integrated pilot supply system for the electro hydraulic remote control makes the valve easy to install and gives a reliable remote control function. It is also possible to supply the pilot system externally. The hydraulic remote control can also be configured both for internal and external pilot supply. Accessories zz A wide choice of spools and spool controls for different flow combinations and for several applications and systems zz A full range of service port valves zz Possibility of high pressure carry-over zz Inlet with electrical unloading valve zz Manual versions easily convertible to remote control MHD08-0 DX PN#00990 Key valve features

2 General overview The drawing shows a -sectional valve with inlet and outlet. The sections are with various types of spool controls. SAE ports are shown in the table. Pp G ¼" Unloading Unit Outlet Load Check Valve Spool Control A-side Solenoid operated valve A-side Back up valve PM G ¼" Inlet T G " Pressure reducing valve TP G ¼" Service port valve P TD T G " Service port plug Port Sizes for US Models P SAE P SAE T SAE T SAE0 T SAE T SAE A&B SAE X SAE0 Y SAE0 Pp SAE0 Tp SAE0 PM SAE0 P T G " Metering orifice T G ¼" Pilot relief valve By pass unit Spool Control B-side y G ¼" x G ¼" B-side Back up unit Actuating this solenoid sends flow to the B port. Pressure drop Oil temperature/viscosity for all graphs: +0 C / cst 0 sect. sect. sect. 0 sect. Q l/min Pressure drop P-T with flow regulator and metering orifice PF0 Pressure drop A /B - T Q l/min 0 sect. sect. Q l/min Q l/min Pressure drop P - T, unloaded valve in inlet IB 0 sect. Pressure drop P - A/B sect. MHD08-0 DX PN#00990 Q l/min Pressure drop P - T without flow regulator Q l/min Pressure drop P - T, unloaded valve in inlet IB - rated flow 0 l/min 0 sect. sect. Q l/min Pressure drop P - T with flow regulator and metering orifice PF0 Note: The pressure drop curves are valid for sections equipped with spools that are fully open at maximum spool travel.

3 Dimensions and weight 8 98 M0x. (x) LF L A-side P T G ¼" () B-side TD Inside 9 0 TP G ¼" T G " () 8 x G ¼" y G ¼" Actuating this solenoid sends flow to the B port, handle moves toward valve. Weight Inlet section IB Inlet section IB Working section Outlet section Outlet & working section US Mid outlet section. lbs. lbs. lbs. lbs. lbs. lbs. kg. kg. kg 7.0 kg. kg 7.0 kg LB LA Measurements spool controls No. of working sections Type L(in) L(mm) LA (in) LA (mm) Type LF(in) LF(mm) LB (in) LB (mm) 9M.7 M. 8 9MO.7 MO. 9R.7 MOF. M.9 7 H. 8 MO.9 7 HF. 8 R.7 9 EHM. 8 SM. 90 EHM. 8 SM. 09 EHMF. 8 SMO. 90 EHMF. 8 SMO. 09 SR. 90 SR. 09 MHD08-0 DX PN#00990 T G " P T G " Port Sizes for US Models P SAE P SAE T SAE T SAE0 T SAE T SAE A&B SAE X SAE0 Y SAE0 Tp SAE0 7 (.) The drawing shows a -sectional valve with inlet and outlet. The valve is configured for left hand inlet and shows the sizes of the ports for a valve with G-ports and the drawing also shows the marking of the ports. SAE ports are shown in the table. 8

4 Dimensions and weight (8) The drawing shows a -section valve with standard inlet section, working sections manual operated and a multisection/outlet. SAE ports are shown in the table. Port Sizes for US Models P SAE P SAE T SAE T SAE A&B SAE PM SAE LF L 7 M0x. (x) 7 9 P P 0. A-side PM G ¼" T T G " 77 A-side Ø8 7 9 Ø8 Spool in for B port flow. MHD08-0 DX PN#00990 No. of working sections L (in) L (mm) LF (in) LF (mm)

5 Inlet Section IB P T P SAE T SAE PM P PM SAE0 P SAE The standard inlet section IB has two pump connections P and P, a gauge port PM to monitor system pressure and a tank connection T. Direct acting main relief valve (TBD0), and an unloading function via / solenoid valve (EU) for emergency dump of pump flow. The cavity () can be used to separate the parallel gallery from the center gallery to accomplish systems with parallel connection downstream of another valve or to control a variable pump. Main relief function TBD0 is adjustable and sealable for setting range 80 -,00 psi (0-00 bar) with setting step 00 psi (7 bar). Inlet IB Unloading valve EU Relief valve TBD0 Cavity for plug PM0 N/A Unloading valve EU and EU EU and EU are -way, normally open, solenoid type cartridge valves. It is an option in all inlet sections. It is intended for emergency stop and for pressure drop/heat generation reduction. Rated flow: Rated flow: Power consumption: Rated voltage EU: Rated voltage EU: 0 gpm,,000 psi (0 Lpm, 80 bar) 7 gpm,,000 psi (00 Lpm, 0 bar) 8 W V V Max voltage variation: +/-% Duty factor*: 00% Connection: Protection class: EN form A IP * Sufficient cooling must be secured. The unloading valve has manual override, with twist pin operation. PE is the plug for the cavity. Characteristic main relief function (TBD0) Q (l/min) MHD08-0 DX PN#00990

6 Inlet section IB P PM T P SAE PM SAE0 T SAE P P SAE Flow control function The inlet section IB with its integral Q-function provides bypass of pump flow to tank in idling condition, thereby reducing pressure drop and heat generation. It also reduces flow forces and makes the control response to large extent unaffected by varying pump flows. This contributes to the excellent operating characteristics achievable with DX-. The regulated flow into the centre passage is set by an exchangeable metering orifice (). In case the IB inlet section is configured with metering orifice PF0, this orifice determines the high pressure carry over flow to downstream arrangements. Inlet section IB Unloading unit FU9 Solenoid operated valve E9 Metering orifice for centre channel flow PF0 By-pass flow control unit FK9 Pilot relief valve TB MHD08-0 DX PN#00990 Unloading function An unloading spool along with an electrical operated pilot valve forms the unloading function. The unloading spool both unloads the pump flow to tank and as well disconnects the valve's parallel passage from the pump. Together with a load holding valve, DX- achieves a very safe emergency dump of pump flow to tank. EU9 and EU9 are -way, normally open, solenoid type cartridge valves. It is an option in all inlet sections. It is intended for emergency stop and for pressure drop/heat generation reduction. Rated flow: Power consumption: Rated voltage EU: Rated voltage EU: gpm (0 Lpm) 8 W V V Max voltage variation: +/-% Duty factor*: 00% Connection: Protection class: * Sufficient cooling must be secured. EN form A IP The unloading valve has manual override, with twist pin operation. PE0 is the plug for the cavity. Main relief function The by pass unit FK9 in combination with the relief valve TB form the pilot operated relief valve function. TB is adjustable and sealable for setting range psi (0 0 bar) with setting step 00 psi (7 bar). l/min Characteristics main relief function l/min PF0 PF0 Pump flow l/min Characteristics regulated flow Oil temperature / viscosity for all graphs: 0 F (+0 C)

7 Working section SL A B A-side SAE B-side SAE Working section SL for both manual and remote operation. The example shows a section configured for manual operation with the spring centering spool control on A-side and encapsulated lever mechanism on B-side spool actuator. The section SL includes a loadcheck valve. Working section SL Spool XY Load check valve MF9 Spool control, A-side 9M Spool actuator, B-side M Working section SL A B A-side SAE B-side SAE x 7 y 7 Working section SL for both manual and remote operation. The example shows a section configured for hydraulic remote control with the spring centering spool control on A-side and the ports for control pressure on the B-side spool actuator. The section SL includes loadcheck valve and cavities for service port valves of type TBD/TBSD0. Section SL Spool XY Service port valve TSBD0 Load check valve MB9 Service port plug P0 Spool control, A-side 9R 7 Spool actuator, B-side H MHD08-0 DX PN#

8 Work section SL A B A-side SAE B-side SAE 7 7 Working section SL for both manual and remote operation. The example shows a section configured for electro hydraulic remote control with the spring centering spool control on A-side and the proportional solenoids on the B-side. The section SL includes loadcheck valve and cavities for service port valves of type TBSD80. Section SL Spool XY Service port valve TSBD80 Load check valve MB9 Service port plug P80 Spool control, A-side 9R 7 Spool control, B-side EHXX Load check valve MF9 The main function of the load check valve is to prevent the load from moving backwards if the load pressure is higher than pump pressure when operating. MB9 Load check valve. MF9 Load check valve with adjustable flow limitation. MF9 restricts the flow out from a section. Typical application is a slewing function. MB9 MHD08-0 DX PN#

9 Outlet section UB T T T SAE0 T SAE T S T SAE The standard outlet section UB has three tank connection ports T, T and T. Port T is used for high pressure carry over function (HPCO) when plug S9 is installed in the S cavity (see example). Outlet selection UB S Carry over plug S9 Outlet section UL T SAE0 TP SAE0 T SAE TD M T TP T T SAE S T The outlet section UL with integrated pilot pressure supply for a valve with electro-hydraulic remote controlled working sections. Same configuration can be used for pilot pressure supply, via port Pp, to a hydraulic controller for use with hydraulic remote controlled working sections. To ensure sufficient pressure for the pilot circuit a start up pressure is generated by the back-up cartridge BUP installed in cavity. The back-up cartridge can be used in combination with HPCO plug S9. A pressure reducing valve TRA limits the pressure in the pilot circuit. Because the pilot pressure is supplied from the parallel gallery an emergency stop will also unload the pilot pressure. It is recommended to drain the return flow in the pilot circuit via port Tp direct to tank in separate piping. This is accomplished by PMS installed in cavity. Note: The port Tp must not be plugged when PMS is installed. The outlet section UL can be configured with a back-up cartridge (BUP installed in cavity ) for an increased pressure in the return passage to prevent cavitation in severe conditions. This is accomplished without compromising the pressure drop P T at idling. Pp Outlet selection UL Back up valve BUP Pilot pressure valve BUP Pressure reducing valve or plug TRA/P Carry over plug S9 Plug for pilot drain PMS MHD08-0 DX PN#

10 Outlet with working section USL B-side SAE A-side SAE TP SAE0 A B Tp Pp SAE0 T 7 T SAE 7 The USL is an outlet section with integrated spool section, T port for tank connection for both manual operation and remote control with external pilot pressure supply. High pressure carry over function is achieved with SU installed in port T. Pp supplied pilot pressure, Tp pilot drain. Pp Outlet and working section USL Spool XY Service port valve TBSD0 Load check valve MB9 Service port plug TBSD0 Spool control A-side 9R 7 Spool actuator B-side EHXX Mid outlet NB T SAE0 TP SAE0 T TP T TD M T SAE S MHD08-0 DX PN#00990 The mid-outlet section NB with integrated pilot pressure supply for a valve with electro-hydraulic remote controlled working sections. Same configuration can be used for pilot pressure supply, via port Pp, to a hydraulic controller for use with hydraulic remote controlled working sections. To ensure sufficient pressure for the pilot circuit a start up pressure is generated upstream of the mid-outlet by the backup cartridge BUP installed in cavity. The back-up cartridge can be used in combination with HPCO plug S9. A pressure reducing valve TRA limits the pressure in the pilot circuit. Because the pilot pressure is supplied from the parallel gallery an emergency stop will also unload the pilot pressure. It is recommended to drain the return flow in the pilot circuit via port Tp direct to tank in separate piping. This is accomplished by PMS installed in cavity. Note: The port Tp must not be plugged when PMS is installed. Pressure reducing valve TRA Mid outlet section NB Back up valve BUP Pilot pressure valve BUP Plug for pilot drain PMS Carry over plug S9 The mid-outlet section NB can be configured with a back-up cartridge (BUP installed in cavity ) for an increased pressure in the return passage to prevent cavitation in severe conditions. This is accomplished without compromising the pressure drop P T at idling. Pp 0

11 Spool controls A-side The spool controls are designed in a modular system for a high degree of flexibility. The sections are basically symmetric but as standard machined either for left or right hand inlet with spool actuator on B-side and spool control on A-side. Spool control 9 9M Manual spring centered pos. encapsulated. 9MO Manual spring centered pos. open spool ends. 9R Remote spring centered pos. Spool control M Manual spring centered pos. encapsulated. MO Manual spring centered pos. open spool ends. R Remote spring centered pos. Spool control S* SM Manual spring centered pos. spool position indicator. SMO Manual spring centered pos. open spool ends spool position indicator. SR Remote spring centered pos. spool position indicator. Spool controls B-side Remote spool actuators can be with or without manual override. The valve is, as standard setup for both manual and remote control. Spool actuator/bracket M M for manual lever pos. MO for manual lever pos. open spool ends. MOF for manual lever pos. open spool ends. Spool actuator H H Hydraulically pos. manual override available as option (HM). HF Hydraulically pos. Manual override available as option (HMF). Spool actuator EHM EHM** Electro hydraulically manual override pos. Without manual override as option (EH**). EHM**F Electro hydraulically manual override pos. without manual override as option (EH**F). * standard connector Mx, also available in Deutsch connector. ** or V DC. MHD08-0 DX PN#00990

12 Solenoid valve for EHP ER / The solenoid valves are /-way electrically operated pressure reducing valves used to provide controlled pilot pressure to operate valve spools. Functional principle: Duty factor: 00 % Connection: Recommended PMW frequency: PWM (Pulse Width Modulation) DEUTSCH DT0* 00 Hz Protection class: IP Ambient temperature: -0 C up to +80 C ER Rated voltage: Starting current: Fully shifted: Coil resistance +0 C: V DC 00 ma,00 ma.7 Ohm ER Rated voltage: Starting current: Fully shifted: Coil resistance +0 C V DC 00 ma 70 ma 0.8 Ohm Levers *Also available with AMP Junior-Power-Timer Lever holder LH Lever and Holder MSK90 The lever holder (LH) is for use together with spool actuator of type M/EHM. The lever holder is delivered in combination with a lever as MSK90. Lever and Holder MSK90 Lever MV/MH Lever for use in combination with open spool ends and a bracket M0/M0F. When mounted on a valve, the lever MH stands in a horizontal position and MV stands in a vertical position. Lever length or mm. MV MH MHD08-0 DX PN#00990

13 Spools main design parameters Generally the spools are divided in different flow ranges. The position indicating regulated flow ranges is replaced by X. The position indicating pump flow is replaced by Y. The last three positions in the code are design parameters. In the table only the accessibility of different functions are shown. Pos. Functionality Spools for general use Function Code Double acting XY Single acting XY Double acting, th pos. for float XY Motor spool A T XY Regenerative 8XY Pos. Regulated center flow X in the code above 0 = Full pump flow i. e. no regulated flow = 7. gpm (0 Lpm) regulated flow (use with inlet section IB) = gpm (0 Lpm) regulated flow (use with inlet section IB) Pos. Pump flow supplied Y in the code above = 0 gpm ±. gpm (80 Lpm ± 0 Lpm) = 0 gpm ± gpm (0 Lpm ± 0 Lpm) = 0 l/min +/-w0 l/min Example: Spool xxx double acting spool with 7. gpm regulated flow and 0 gpm pump flow, xxx in the code are design parameter. The DX- spools are available in a variety of flows and styles to accommodate most design requirements. Since the development of spools is a continous process and all available spools are not described in this data sheet, contact HYDAC for advice on choosing spools in order to optimize your valve configuration. MHD08-0 DX PN#00990

14 Service port valves Port relief valve TBD0 TBD0 is a differential area, direct acting relief valve, for the secondary circuit. It is adjustable and sealable. Setting range for TBD0: z00-,0 psi (0-00 bar) zsetting range step: 00 psi (7 bar) Relief characteristics TBD0 l/min Port relief valve TBSD0 TBSD0 is a differential area, direct acting relief and anticavitation valve, for the secondary circuit. It is adjustable and sealable. Setting ranges for TBSD0: z00-,0 psi (0-00 bar) zsetting range step: 00 psi (7 bar) Relief characteristics TBSD0 l/min Port relief and anticavitation valve TBSD80 TBSD80 is a direct acting relief and anticavitation valve, for the secondary circuit. It is fixed and sealable. Setting ranges for TBSD80: z,00-,800 psi (90-00 bar) zsetting range step: 00 psi (7 bar) Relief characteristics TBSD80 l/min MHD08-0 DX PN#00990 Anticavitation valve SB0 The anticavitation valve service to ensure that, in the event of a lower pressure in the cylinder port than in the tank, oil can be drawn from the system oil tank to the consumer. Anticavitation characteristics TBSD0 and SB0 l/min

15 Service port valves Anticavitation valve SB80 The anticavitation valve service to ensure that, in the event of a lower pressure in the cylinder port than in the tank, oil can be drawn from the system oil tank to the consumer. l/min Anticavitation characteristics TBSD80 and SB80 Typical hydraulic circuit diagrams This example shows a DX- with parallel circuitry. The inlet section with flow control function and electrical unloading. A metering orifice determines the center passage flow. A pilot operated relief valve in combination with the flow control performs the main relief valve function. Four working sections all with double acting cylinder spools hydraulically actuated. Section with a spool position indicator. Outlet section machined for pilot pressure supply, back-up pressure and high pressure carry-over (HPCO) but in the example configured with cavity plugs. This example shows a DX- with parallel circuitry. The inlet section of standard type with a direct acting main relief valve. Five working sections all manual operated. Section with -position regenerative spool. The outlet section with integrated working section with option for HPCO. MHD08-0 DX PN#00990

16 MHD08-0 DX PN#00990 Ordering Details DX Sectional Control Valve Section DX- - - [] [] No. of directional [] spools - 0 [] [] Inlet (IB, IB) [] R/V Setting (psi) [7] Unloading Valve Voltage/Connection [8] /DIN /DIN [9] ] IB includes FK9 by- pass flow control unit. Use of this inlet should be reviewed with your HYDAC applications consultant. [0] Working Section Spool A- Side Operator B- Side Operator i.e. TBSD0+00 A- Side Port Option CODE+setting psi B- Side Port Option CODE+setting psi i.e. MF+0 Check Valve CODE+setting gpm Solenoid Voltage ( or ) Solenoid Connector (DT or AMP) Repeat for Number of Sections Application Information OEM: Machine Type: Pump Type: Pump Flow: Outlet (UB, UL) System Pressure: Pressure Reducing Valve EAU: Carry Over Port Other Information: (I)nternal or (E)xternal Pilot Drain ] Leave blank if USL is used as last section body

17 Notes MHD08-0 DX PN#

18 Notes MHD08-0 DX PN#

19 MHD08-0 DX PN#

20 Global Head Office HYDAC INTERNATIONAL GMBH Industriegebiet D 80 Sulzbach/Saar Germany Tel.: Fax: Internet: info@hydac.com USA North America Locations Filter Division 0 City Line Road Bethlehem, PA Accessory Division 0 Avenue C Bethlehem, PA Cooling System Division 0 Airlie Parkway Denver, NC x80 HYDAC Cylinders LLC 0 Carson Road North Birmingham, AL Electronic Division Process Filter Division HYDAC CORPORATION Accumulator Division 90 Southland Drive Bethlehem, PA Cooling System Division Windy Point Drive Glendale Heights, IL Hydraulic Division - Compact Hydraulics 0 Windy Point Drive Glendale Heights, IL Paul Avenue Glendale Heights, IL Mobile Hydraulic Division 0 Enterprise Parkway Suite E Wooster, OH Canada HYDAC CORPORATION Federal Road Welland, Ontario, Canada LB P HYDAC CORPORATION Sales Office & Operations 78 Fry Road, Suite 00 Houston, TX HYDAC CORPORATION NE Sales Office 0 Enterprise Parkway Suite E Wooster, OH HYDAC CORPORATION SE Sales Office 0 Airlie Parkway Denver, NC x80 HYDAC CORPORATION NW Sales Office 0 NE th Street Suite Vancouver, WA HYDAC CORPORATION Sales Office AVE W Edmonton, Alberta, Canada TS P Note The information in this brochure relates to the operating conditions and applications described. For applications or operating conditions not described, please contact the relevant technical department. Subject to technical modifications. HYDAC CORPORATION Sales Office Montreal, Québec, Canada JM K Mexico HYDAC INTERNATIONAL SA DE CV Calle Alfredo A. Nobel # Colonia Industrial Los Reyes Tlalnepantla, CP. 07 Edo. de Mexico Copyright 0 Mobile Hydraulics - DX Series PN#00990 / 08. / MHD08-0