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BKGL34-CKG
Cissoko
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The BKGL34-CKG Dump Truck Slow-Drop Control Air Valve is a crucial in-cab control unit designed for precise management of the truck's tipping cycle. This bidirectional control valve features four distinct working positions and works in tandem with a slow-drop tank valve to deliver four key functions: lifting, neutral/holding, regular lowering, and controlled slow dropping. With a pneumatic control range of 0.6-1.2 MPa and a 4mm nominal diameter, it provides accurate and stable pneumatic control for the hydraulic system, ensuring safe and controlled descent of heavy loads, which is critical for operational safety.
Four-position precise switching (four-in-one): This valve integrates four working positions: **Tipping, Neutral/Holding, Regular Lowering, and Slow Dropping**. The positions are clearly defined, allowing the driver to perform accident-free one-button operation from inside the cab.
Wear-resistant pure copper valve spool: Unlike some cheap valves on the market that use plastic cores, the BKQF34-CKG uses a high-density, tough brass valve spool . In the high-frequency push-pull operation environment of dump truck sites, brass exhibits extremely strong wear and corrosion resistance, significantly extending the valve's lifespan.
Linear proportional pneumatic controlled slow descent: Equipped with a precision pneumatic adjustment structure. When the handle is pushed or pulled, the output air pressure signal can be adjusted proportionally to control the return oil volume of the chassis hydraulic main valve, thereby achieving a gradual slow descent of the cargo box at the millimeter level.
| 参数项 | 参数值 |
|---|---|
| Product Type | Cab control valve |
| Model Number | BKQF34‑CKG |
| Pneumatic control range | 0.6‑1.2Mpa |
| Nominal diameter | 4mm |
| Function | Bidirectional control valve, with tipping, stopping and slow dropping functions. |
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.
Dump Truck Slow-Drop Control Air Valve BKGL34-CKG 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.
A: The core advantages are extremely high high-frequency wear resistance and anti-gas leakage capability.
Key differences: Ordinary truck air valves often use engineering plastics or unhardened aluminum alloys for their valve cores, which are prone to wear and scratches from prolonged operation in dusty construction sites. The BKGL34-CKG, however, uses a robust brass valve core , offering superior hardness, wear resistance, and cavitation resistance. Even with frequent, forceful pushing and pulling movements from drivers, the brass valve core is less prone to deformation or wear, extending the lifespan of the internal rubber seals by more than double. This fundamentally reduces the risk of minor air leakage and cross-contamination caused by valve core wear.
A: This valve adopts an integrated four-position segmented push-pull design , and the operation logic is very intuitive.
Cargo box lifting: Pull the handle all the way back.
Mid-air hover: The handle is centered and in the mid-stop lock position.
Millimeter-level slow descent: Gently push the handle forward , and it will enter the proportional slow descent zone. The smaller the push, the lower the air pressure output to the main beam hydraulic valve, and the slower and smoother the cargo box descent.
Standard quick descent: Push the handle forward forcefully to the end to enter the quick descent lock position. At this time, the air valve is fully open, outputting maximum air pressure, and the return oil circuit of the chassis hydraulic valve is fully opened, allowing the empty cargo box to return to its position as quickly as possible.
A: It's mainly to prevent truck rollovers and beam cracks.
Safety Implications: When a dump truck is unloading tens of tons of sand, gravel, or ore on a soft construction site or a sloping road, immediately lowering the cargo box after unloading can cause a sudden and drastic change in the center of gravity, easily leading to the vehicle losing balance and overturning. Furthermore, under heavy load, excessive throttle opening can cause the cargo box to fall freely and impact the chassis, generating a massive hydraulic shockwave capable of breaking the truck's frame, cracking multiple hydraulic cylinders, and damaging chassis components. The BKGL34-CKG slow-descent valve allows the driver to precisely control the cargo box's slow descent, perfectly avoiding these fatal risks.
A: This valve has a 4mm diameter and the connection is mostly a G1/8" standard thread, usually paired with an 8mm outer diameter air hose. Standard connection rules are as follows:
Air inlet (P/1 port): Connects to the high-pressure air reservoir in the truck's air brake system.
Lifting port (A/21 port): The lifting air chamber that connects to the chassis hydraulic lifting main valve.
Slow descent/lowering port (B/22 port): Connects to the proportional descent/slow descent control air chamber of the chassis hydraulic main valve.
If connected in reverse: If the lifting and lowering lines are connected in reverse, the valve uses a variable pressure airflow channel specially designed for the "slow descent function". This will not only completely reverse the operating direction (pulling back becomes lowering, pushing forward becomes lifting), but also cause the most core linear proportional slow descent function to completely fail , resulting in a dangerous state of sudden descent with a push. Therefore, it is essential to test under safe no-load conditions after connecting the lines.
A: In more than 90% of cases, this is not due to damage to the valve itself, but rather to excessive moisture in the truck's air system causing it to freeze .
Troubleshooting and resolution:
If the vehicle's air dryer filter fails, water vapor from the compressed air can get into the control air circuit. At low temperatures, moisture can condense into tiny ice crystals around the brass valve core and rubber seals inside the handle, causing a sharp increase in resistance and making the handle stiff to push or pull.
Ice formation can also clog the tiny 4mm air control channel, preventing air from flowing smoothly to the lifting valve below when the handle is pushed forward. As a result, the hydraulic valve does not receive the signal, and the cargo box does not move.
Solution: Thoroughly drain the water from the bottom of the vehicle's air tank and immediately replace the air dryer filter in the chassis. If necessary, inject a small amount of antifreeze oil specifically for pneumatic tools into the control air circuit.
Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.
Dump Truck Slow-Drop Control Air Valve BKGL34-CKG 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.
