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RD5300
Cissoko
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The RD5300 Multi-Section Directional Control Valve is a robust manual hydraulic control valve engineered for demanding applications in dump trucks and heavy machinery. Operating at a high rated pressure of 315bar with a substantial flow rate of 100L/min, it delivers powerful and responsive hydraulic control. Its modular monoblock design allows for flexible configuration with 1 to 3 sections, making it a versatile directional control valve for dump trucks. Designed for reliability in harsh conditions, it features a wide operating temperature range of -40 to 80°C and excellent contamination resistance, ensuring durable performance on construction sites and in mining operations.
High-strength material : Made of high tensile strength gray cast iron, either integrally cast or assembled in sections, resistant to high pressure impact. The valve core surface is treated with hard chrome anodizing, which takes into account both wear resistance and long service life.
Anti-backflow load check valve : Each spool is equipped with an independent load check valve , which can effectively prevent hydraulic oil backflow and ensure smooth operation and no boom drop during the switching of compound actions.
Differential safety relief valve : Built-in differential plunger-type main relief valve, Prince standard parts support adjustment of the system's maximum pressure in the range of 1500–3000 psi, providing overload protection.
Flexible hydraulic circuit switching : The standard configuration is a **normally open center hydraulic circuit**, but by adding an optional conversion plug, it can be easily switched to a **normally closed center** or **power beyond** hydraulic circuit to meet the needs of different hydraulic pump stations.
Parameter | Specification |
|---|---|
Product Type | Directional valve |
Model Number | RD5300 |
Rated Pressure | 250 bar |
Rated Flow | 40–120 L/min |
Operating Range | 15–75 mm²/s |
Working Temperature | -40 to 80°C |
Min Viscosity | 12 mm²/s |
Max Viscosity | 400 mm²/s |
Monoblock | 1–7 sections |
Control Type | Manual, joystick, cable, pneumatic, electro-hydraulic, etc. |
Applications
Heavy Wheel Loaders & Excavators: Used to split fluid from the main piston pump, prioritizing smooth hydraulic power steering lines while routing the remaining flow to drive heavy boom, arm, and bucket actions.
Complex Sanitation & Garbage Compactors: Coordinates multiple automated steps. It precisely distributes pump power so the vehicle can lift heavy trash containers smoothly while running high-pressure compaction blades at a controlled, uniform speed.
Large Mobile Mining & Drilling Rigs: Feeds high-pressure oil to auxiliary stabilizer jacks while maintaining steady, non-pulsating rotation fluid on the primary drill motor line.
RD5300 Multi-Section Directional Control Valve are typically packaged securely to prevent damage during transit. The packaging includes:
Protective Wrapping: To safeguard the pump from environmental damage.
Custom Crates: For larger, heavier pumps, ensuring safe handling.
Documentation: Includes installation, maintenance instructions, and warranty details.
Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.
Answer : The RD5300 is designed with a conversion interface. You do not need to replace the entire valve body; simply install a dedicated conversion plug inside the main valve's outlet port .
Power Beyond : Screw in the power beyond sleeve to introduce unused pressurized oil flow into the next downstream valve.
Normally closed center : Screw in the normally closed plug to block the intermediate oil passage. Suitable for variable displacement piston pump systems.
answer :
Slower speed : The RD5300 is a parallel circuit valve, meaning pressurized oil will preferentially flow to the cylinder with the lighter load (lower resistance). If the two loads differ significantly, the lighter-loaded cylinder will move first, while the heavier-loaded cylinder will move slower.
Sudden drop : This is usually caused by wear, foreign object obstruction, or a broken spring in the load check valve inside the valve core , resulting in the pressurized oil in the cylinder flowing back into the inlet chamber during the valve core switching. It is recommended to disassemble and clean the valve or replace it with a check valve repair kit.
Answer : For the Prince RD5300, the back pressure at the return port (T port) during continuous operation is generally recommended not to exceed 150 PSI (approximately 10 bar) . If the return back pressure is too high, it can cause the rubber oil seals (O-rings) on both sides of the valve core to be pushed out and damaged, oil leakage at the handle, and even make the handle operation more difficult and prevent the valve core from automatically returning to the neutral position.
Answer : The RD5300 has a built-in differential main relief valve, which is usually preset to around 2000 PSI (adjustable between 1500 and 3000 PSI).
Adjustment method : Remove the plastic protective cap at the end of the overflow valve and loosen the lock nut. Use the hex key to turn the screw clockwise to increase the pressure and counterclockwise to decrease the pressure .
Note: When adjusting, a pressure gauge must be connected to the main oil inlet or working oil inlet. Blind adjustment is strictly prohibited to prevent overpressure and pipe bursting.
Answer : This is the most common maintenance problem, usually caused by oil contamination or wear of the valve core O-ring (spool seals) due to long-term high-frequency use .
Maintenance steps : The entire valve does not need to be removed. Simply remove the handle linkage and the positioning spring cap at the tail of the valve core, carefully pull out the valve core, and replace the O-rings and dust seals at the tail and front. Exercise extreme care during disassembly and assembly to avoid scratching the high-precision valve core surface.
Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.
RD5300 Multi-Section Directional Control Valve are manufactured in compliance with international standards, ensuring high performance and reliability:
ISO 9001: Certified for quality management systems.
CE Certification: Ensures compliance with European safety, health, and environmental protection standards.
RoHS Compliance: Ensures the Valve does not contain hazardous materials.
Factory Testing: Every valve is rigorously tested for performance, pressure, and leak integrity before shipping.
1.What's our advantages?
Factory established in 2005;
With a great deal of production experience;
80+ employees become the professional team;
Constant updated ERP system ensure efficiency of work;
Sophisticated equipment ehanced the accuracy of products;
Professional salesmen provide the greast service;
With a large number of famous customers all over the world;
Great after-sales service;
With the long term cooperation with famous logistics and express company in China,provide the better goods service.
Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.
Of course we can. Just send me your logo we can make it for you.
America(40.5%):USA, Canada, Argentina, Brazil
Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.
Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.
Others(5.8%).
The Cissoko hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.
The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.
Cissoko Hydraulic's manufacturing facilities for hydraulic pumps maintain stringent quality standards, often adhering to international certifications, to meet the expectations of customers in industries such as construction, agriculture, automotive, and manufacturing.
All hydraulic pumps produced by Cissoko Hydraulic have undergone compliance testing, ensuring their quality and reliability.
To meet the diverse needs of different industries, the Cissoko hydraulic offer customization options, such as specialized seals, materials, and pump configurations. These facilities often work closely with engineering teams to develop tailored solutions for specific applications, from high-pressure systems to low-flow, high-efficiency pumps.
Each pump undergoes a rigorous quality control process, where pressure tests and performance assessments are conducted to ensure that the pumps meet the required standards for flow rate, pressure capacity, and durability.
