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Model: JDM-99
JDM: JDM-99 Hydraulic Model Three-position Reversing Large Valve
Functional Features: With mid-position return oil hydraulic valve, 1: When the oil pump is turned on and no cylinder is in motion, the high-pressure oil flows directly back to the tank through the mid-position return oil path in the valve body. The system pressure is minimal.
2: When the oil pump is turned on and a single cylinder is in motion (any), the high-pressure oil flows to the cylinder that is in motion. The system pressure depends on the load size. When the load is less than the power generated by the system set pressure, the system pressure is the same as the load until the cylinder stroke reaches the limit, and the system pressure is the maximum relief valve opens. When the load is greater than the power generated by the system set pressure, the system pressure reaches the maximum and the relief valve opens directly.
3: When the oil pump is turned on and 2 or N (N depends on the number of valves) cylinders are turned on at the same time, high-pressure oil flows to N cylinders. The system pressure depends on the load size. When the load is less than the power generated by the system set pressure, the system pressure is the same as the load until the stroke of each cylinder reaches the limit, and the system pressure is the maximum relief valve opens. When the load of each cylinder is greater than the power generated by the system set pressure, the system pressure reaches the maximum and the relief valve opens directly.
4JDM model reversing valve, such as N-position valve, as long as one cylinder moves, the middle return oil circuit will be blocked, but there is another high-pressure oil that can lead to the high-pressure area of all cylinder positions, so our reversing valve can make all oil circuits move at the same time, but when there are many movements, whether the movements can be completed at the same time depends on the flow of the oil pump. When the flow is insufficient, the oil with a smaller load completes the action first, and then the oil circuit with a larger load can complete the action. It is recommended to use the static point model JDM-20, JDM-21 large flow oil pump.
The servo needs to be purchased separately. Please contact us if you need a link.
Introduction: Hydraulic model three-position reversing valve, driven by a standard servo, the specific connection is shown in the figure:
Note: This version does not include a servo, the servo needs to be purchased separately
Accessories for the version without servo: 8 M5-4L nozzles; 1 M5-6L nozzle; 1 M5 plug
Points to note: Before working, make sure that the three plugs are in a horizontal position, and the plugs must also be in the default position when shipped by our company. For easy identification, the three plugs have been numbered during processing, as shown in the figure:
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