Hydac
Hydac Mobile Directional Control Valves
Womack Machine Supply Company proudly partners with Hydac to deliver the finest Mobile Directional Valves available. Our collaboration ensures that customers in multiple locations across the United States have access to these exceptional products, click here to see available locations. Our commitment to excellence, combined with the reliability and performance of Hydac, guarantees that you receive top-quality Mobile Directional Valves components for your specific needs.
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Monoblock Valve
RM 230 Series
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Applications
Typical applications for RM 230 are tippers, cranes, refuse trucks and agricultural vehicles.
Further RM 230 properties and possibilities
- There are many varieties of spools and spool con- trols which make the valve suitable for a wide range of applications.
- Two or more blocks can be connected in series.
Technical data
Pressures / Flow
Max. system pressure* …………………………..300 bar (30,0 MPa)
Max continuous return line pressure…………….20 bar (2,0 MPa)
Rated flow……………………………………………………………. 50 l/min
*depending on application
Further data
- Spring force for spool control 9 in neutral position: 110 N (11,0 kp).
- Spring force for spool control 9 with a fully selected spool: 136 N (13,6 kp).
- Recommended contamination level at normal duty: equal to or better than 18/14 as per ISO 4406.
- Hydraulic fluid viscosity range at continuous operation: 10-400 mm²/s (cSt). Higher viscosity allowed at start up.
- Mineral oil and synthetic oil based on mineral oil are recommended.
- Max. hydraulic fluid temperature range for continuous operation: -15°C to +80°C.
- Spool leakage at 100 bar, 32 cSt and 40°C: <13 cm³/min.
Available in: Alabama, Arkansas, Arizona, N.W. Florida, S. Idaho, Louisiana, Mississippi, Montana, New Mexico, Nevada, Oklahoma, Texas and Utah
Sectional Valves
RS 210 Series
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Q-function
The flow control (Q-function) of the inlet section by-passes the major part of the pump flow to tank when the system is idling, thereby greatly reducing heat generation. But it also gives access to the full pump flow when the services are operated and provide improved operating characteristics.
Applications
The RS 210 is ideal for applications where you need excellent control characteristics such as cranes, excavators, back-hoe-loaders, skid loaders and tipping gear.
Further RS 210 Properties and Possibilities
- Several different in- and outlet alternatives offering possibility for electrical unloading, connecting and dimensional flexibility.
- Very wide programme of different spools optimised for various pump flows, applications, system alternatives etc.
- Spool controls for external kick-out and spool position sensing.
- Load checks in each working section.
- High pressure carry-over.
- Left-hand and right-hand side inlet.
Technical data
Pressures / Flow
Max. system pressure* ………………………….. 350 bar (35,0 MPa)
Max continuous return line pressure …………… 20 bar (2,0 MPa)
Rated pump flow……………………………………………………. 50 l/min
With Q-inlet ………………………………………………………….. 70 l/min
*depending on configuration and application
Further Data
- Spring force for spool control 910 in neutral position: 110 N (11,0 kp).
- Spring force for spool control 901 with fully selected spool: 135 N (13,5 kp).
- Recommended contamination level at normal duty: equal to or better than 18/14 as per ISO 4406.
- Hydraulic fluid viscosity range at continuous operation: 10-400 mm²/s (cSt). Higher viscosity allowed at start up.
- Mineral oil and synthetic oil based on mineral oil are recommended.
- Max. hydraulic fluid temperature range for continuous operation: -15°C to +80°C.
- Spool leakage at 100 bar, 32 cSt and 40°C: <13 cm³/min.
Available in: Alabama, Arkansas, Arizona, N.W. Florida, S. Idaho, Louisiana, Mississippi, Montana, New Mexico, Nevada, Oklahoma, Texas and Utah
RS 220 Series
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Q-function
The flow control (Q-function) of the inlet section by-passes the major part of the pump flow to tank when the system is idling, thereby greatly reducing heat generation. But it also gives access to the full pump flow when the services are operated and provide improved operating characteristics.
Applications
The RS 220 is ideal for applications where you need excellent control characteristics such as cranes, sky- lifts, excavators, telescopic load handlers, skid-loaders, wheel loaders etc.
Remote Control
The RS 220 is designed with an integrated pilot supply system in order to achieve an easy installation and a reliable remote control function. It is also possible (and in some cases to prefer) to supply the pilot system externally.
Further RS 220 Properties and Possibilities
- A wide choice of spools and spool controls for different flow combinations and for several applications and systems.
- A full range of service port valves.
- Possibility of high pressure carry-over.
- Electrical unloading.
- Manual versions easily convertible to remote control.
Technical data
Pressures / Flow
Max. system pressure: …………………………… 350 bar (35,0 MPa)
Max continuous return line pressure………………20 bar (2,0 MPa)
Max. return line pressure, pilot oil circuit ………….5 bar (0,5 PMa)
Rated flow……………………………………………………………….80 l/min
*Depending on application
Further data
- Spring force for spool control 901 in neutral position: 110 N (11,0 kp).
- Spring force for spool control 901 with fully selected spool: 130 N (13,0 kp).
- Recommended contamination level at normal duty: equal to or better than 18/14 as per ISO 4406.
- At higher system pressure and/or for remote control: equal to or better than 17/13 as per ISO 4406.
- Hydraulic fluid viscosity range at continuous operation: 10-400 mm²/s (cSt). Higher viscosity allowed at start up.
- Mineral oil and synthetic oil based on mineral oil are recommended.
- Max. hydraulic fluid temperature range for continuous operation: -15°C to +80°C.
- Spool leakage at 100 bar, 32 cSt and 40°C: <13 cm³/min.
Attention: To ensure proper function of remote control systems it is very important that the acceptable level of contamination is not exceeded.
Available in: Alabama, Arkansas, Arizona, N.W. Florida, S. Idaho, Louisiana, Mississippi, Montana, New Mexico, Nevada, Oklahoma, Texas and Utah
RSQ 240 Series
![]() | Key valve features
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Q-function
The flow control (Q-function) of the inlet section by-passes the major part of the pump flow to tank when the system is idling, thereby greatly reducing heat generation. But it also gives access to the full pump flow when the services are operated and provide improved operating characteristics.
Q-function, in combination with the dual parallel gallery functional principle unique for RSQ 240, and separate flow regulation in each working section, gives this valve a very high performance level.
Applications
The RSQ is ideal for applications such as truck cranes, backhoe-loaders, excavators, drilling rigs, telescopic
load handlers, sky-lifts, refuse vehicles and fork lift trucks.
Remote Control
The RSQ 240 is designed with an integrated pilot supply system in order to achieve an easy installation and a reliable remote control function. It is also possible (and in some cases to prefer) to supply the pilot system externally.
Further RSQ 240 Properties and Possibilities
- Complete flow regulation control. At reduced flow the entire spool (lever) resolution is maintained.
- Raised working pressure level in low flow mode allowing increased pay-loads, for example in cranes.
- Separate adjustable flow limitation in each section, independent of pump flow.
- A wide choice of spools and spool controls for different flow combinations and for several applications and systems.
- A full range of service port valves.
- Load check valves in each working section.
- Spool actuators for external kick-out and spool position sensing.
- Left-hand and right-hand inlet configurations are available.
- Intermediate outlet section for dual circuit systems.
- Easily convertible for systems with variable pump.
- Manual versions easily convertible to remote control.
- Pressure relief valve for downstream services.
- Electrical unloading.
- Regenerative function.
- Possibility of high pressure carry-over.
Technical data
Pressures / Flow
Max. system pressure* ……………………………350 bar (35,0 MPa)
Max. continuous return line pressure…………… 20 bar (2,0 MPa)
Max return line pressure, pilot oil circuit ………….5 bar (0,5 MPa)
Rated pump flow** ………………………………………………. 120 l/min
Max. recommended flow per section ……………………… 100 l/min
* Depending on application
** Pump flows above 100 l/min may require metering check valve MF24 in working sections
Further data
- Spring force for spool control 901 in neutral position: 110 N (11,0 kp).
- Spring force for spool control 901 with fully selected spool: 130 N (13,0 kp).
- Recommended contamination level at normal duty: equal to or better than 18/14 as per ISO 4406.
- At high system pressure and/or for remote control: equal to or better than 17/13 as per ISO 4406.
- Hydraulic fluid viscosity range: 10-400 mm²/s (cSt). Higher viscosity allowed at start up.
- Mineral oil and synthetic oil based on mineral oil are recommended.
- Max hydraulic fluid temperature range for continuous operation: -15°C to +80°C.
- Spool leakage at 100 bar, 32 cSt and 40°C: <13 cm³/min.
Attention: To ensure proper function of remote control systems it is very important that the acceptable level of contamination is not exceeded.
AVAILABLE IN THESE LOCATIONS
- Alabama
- Arizona
- Arkansas
- Louisiana
- Mississippi
- Montana
- N.W. Florida
- Nevada
- New Mexico
- Oklahoma
- S. Idaho
- Texas
- Utah
Contact Us For Pricing And Availability
If you’re interested in any of our products, or you have any questions about pricing and availability, let our team know today. We’re here to help!