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Motor mount HICs Application notes CROSS-PORT RELIEF VALVES 16.12 Cartridge Valves Technical Information Motor mount HICs Application notes The cross-port relief valve controls maximum torque of the motor. It provides overpressure protection for the work ports. The cross port relief valve is a full-flow relief. It can bypass all motor flow when pressure reaches the relief setting. BLN-10201 • 520L0588 • Rev. CA • Nov 2007 Introduction Quick reference Index The cross-port relief valve is available in configurations with dual (cross-port) valves or with relief on A or B port only. An optional shuttle valve is also available for load-sensing pumps or auxiliary functions such as brake release. Typical applications for cross-port relief valves include vehicle propulsion, auger drives, conveyer drives, and slew drive. Any rotary application requiring pressure limiting can benefit from a motor-mounted cross-port relief valve. For more information on relief valves, see Relief Valves, section 4 of this catalog. Cross-port relief valve F102 238 Dual cross-port relief with shuttle MA MB MA MB A S B A B With Shuttle Without Shuttle F102 239 P104 788
CROSS-PORT RELIEF VALVES (continued) Cartridge Valves Technical Information Motor mount HICs Application notes BLN-10201 • 520L0588 • Rev. CA • Nov 2007 Introduction Quick reference Index Sample system circuits Motor with dual cross-port relief A typical rotary circuit application for a cross-port relief valve contains a pump, directional control valve, system relief valve, and motor. Without a cross-port relief valve there is no overpressure protection at motor work ports. A cross-port relief valve controls motor torque while reducing system component fatigue. In this circuit, a dual cross-port relief HIC is mounted to a standard motor, providing functionality in both directions. Moving the directional control valve to the left causes the motor to rotate in one direction. When the load exceeds the valve setting, the valve opens allowing the flow to bypass to the opposite work port. The cross-port relief valve remains open until the load on the motor decreases below the pressure setting. The system relief valve shown in this circuit provides the primary pressure protection. The directional control valve can isolate the pump and motor while shifting, making independent pressure protection necessary. A motor-mounted cross-port relief is typically used in circuits where limiting the torque from the load is critical, where the load is very dynamic, or where distance from the system relief limits responsiveness. Dual cross-port relief A MA MB B P104 781 Simple rotary circuit with dual cross-port relief valve. 16.13 Motor mount HICs Application notes
Page 1 and 2: Cartridge Valves Technical Informat
Page 7 and 8: ORBITAL MOTORS Sauer-Danfoss orbita
Page 9 and 10: COUNTERBALANCE VALVES Cartridge Val
Page 11: COUNTERBALANCE VALVES (continued) C
Page 15 and 16: BYPASS SOLENOID VALVES Cartridge Va
Page 17 and 18: BYPASS SOLENOID VALVES (continued)
Page 19 and 20: DUAL SHOCK VALVE WITH ANTICAVITATIO
Page 21 and 22: OPERATION SPECIFICATIONS DIMENSIONS
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OPERATION SPECIFICATIONS DIMENSIONS
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PDF 8 MB - Sauer-Danfoss

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