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QHF34-E15L-M-Light-truck-slow-drop-reversing-valve
cissoko
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Suitable for agricultural light truck dump truck hydraulic system, can match double multistage cylinder or single rod piston cylinder, lift, drop and slow drop, internal safety relief valve, system pressure can be set. Can use the control valve, remote gas control reversing control.
Dual Descents (Fast & Slow): The valve includes an integrated proportional circuit. It allows operators to drop the empty truck bed fast or slowly meter it down (slow descent) to protect the chassis frame from heavy shock impacts.
Built-in Safety Relief Valve: It features an adjustable internal pressure relief valve. This automatically bypasses fluid back to the reservoir if the truck bed hits an obstacle or overloads, preventing hydraulic lines from bursting.
Cabin Joystick Integration: It pairs directly with standard cabin air-toggle valves (like the Q23 or XQF controllers) for remote, fully pneumatic
| Working Pressure (MPa) | Nominal Diameter (mm) | Rated Flow (L/Min) | Control Air Pressure (MPa) | Full Opening Pressure of the Safety Valve (MPa) |
|---|---|---|---|---|
| 16 | 20 | 100 | 0.6~1 | 20~22 |
Applications
Installed in small tipper trucks (1.5 to 4-ton capacity) to manage heavy cargo beds.
The "-M" slow-drop mechanism allows drivers to lower loaded beds smoothly, preventing heavy impact damage to the chassis and suspension.
Widely used on motorized three-wheelers and compact utility farm vehicles.
Prevents the vehicle from tipping over when lowering heavy loads (like grain, soil, or fertilizer) on soft, uneven terrain.
Controls the tipping and lifting mechanisms in mini-garbage trucks and hook-lift vehicles.
The controlled slow-descent stops heavy waste bins from dropping suddenly, preventing liquid splashing and stabilizing the vehicle.
Used on highway service trucks to handle hot asphalt or heavy road materials.
Allows operators to meter or incrementally drop materials precisely onto the road surface rather than dumping everything at once.
GL-E80L-Light-truck-directional-valves 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 "-M" version includes a specialized internal throttling core that allows for proportional slow-descending control. While a standard valve might only offer basic "On/Off" lowering (causing the bed to drop at full speed), the "-M" variant responds progressively to varying pilot air pressure to slow down or speed up the descent.
Answer: This points to either a pneumatic or mechanical issue:
Low Pilot Air Pressure: If your truck's air lines are supplying less than 0.6 MPa, the air force cannot completely overcome the valve's internal return spring, preventing the spool from opening fully.
Clogged Return Line: Check the valve's T (Tank) port or the hydraulic return line filter. Any restriction here limits the flow capacity below its 60 L/min maximum rating.
Answer: No. The slow-drop fluid regulation is strictly directional and only engages during the lowering cycle. During the lifting cycle, the valve routes the maximum possible oil flow from the pump directly to the cylinder to maximize lifting efficiency and power.
Answer: It is designed to be chassis-mounted near the hydraulic oil tank and pump network. Because it is entirely air-controlled (Pneumatic Pilot), you only need to run flexible nylon air lines from the cabin toggle switch down to the valve's pilot ports, keeping high-pressure oil completely outside the driver's cab.
Answer: The QHF34-E15L-M has an integrated adjustable safety relief valve. If the truck bypasses oil back to the tank too early, remove the protective hex cap on the relief valve section and turn the internal adjustment screw slightly clockwise to increase the pressure threshold (do not exceed the 25 MPa system rating).
Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.
QHF34-E15L-M-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.
