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BKGL34B-C4
Cissoko
The BKGL34B-C4 Manual Air Control Valve represents advanced engineering in modular control valve technology specifically designed for medium-duty tipper truck hydraulic systems. This innovative multi-function tipper truck valve integrates lifting, stopping, and lowering functions within a compact modular structure, operating at 1MPa rated pressure with 4mm nominal diameter. Manufactured from premium metal materials, this bidirectional control valve features a robust construction that ensures reliable performance in demanding conditions. The modular design allows flexible configuration of control units according to specific vehicle requirements, making it ideal for complex hydraulic systems requiring multiple functions. Its standardized interfaces and ergonomic layout provide intuitive operation and easy installation in various cabin configurations, establishing it as a superior pneumatic control solution for construction machinery across transportation, municipal services, and construction applications.
Core positioning (heavy load and high integration): Adopting an intuitive single-axis front and rear push-pull design, the chassis hydraulic main valve is remotely and precisely controlled via compressed air, and the lifting, stopping, lowering and power take-off (PTO) opening and closing of the cargo box are integrated .
The biggest highlight (C4 reinforced/proportional slow descent): It has been rigidly upgraded to address the frequent and rough pushing and pulling in construction sites and mines, and adopts a thickened die-cast alloy base and an all-metal cam; the "descent" mode supports high-precision proportional slow descent , allowing the driver to precisely control the safe descent of a cargo box weighing tens of tons, just like feeding an accelerator, to avoid sudden descent that could damage the vehicle's frame.
Technical advantages: Equipped with mechanical interlock protection , the PTO switch automatically springs back to close when the handle is pushed to the "lower" position, completely eliminating the risk of pump burnout when starting in gear. The intermediate stop gear features a strong steel ball self-locking mechanism. The entire valve is resistant to low temperatures and wear (operating stably from -40℃ to +80℃ ), offering advantages such as fewer interfaces, extremely low failure rate, and resistance to accidental activation due to shaking, making it suitable for heavy-duty trucks.
| Parameter | Specification |
|---|---|
| Product Type | Cab control valve |
| Model Number | BKQF34B-C4 |
| Pneumatic Control Range | 1 MPa |
| Nominal Diameter | 4mm |
| Function | Bidirectional control valve, with tipping, stopping and 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.
Heavy-Duty Pneumatic Control Valve BKGL34B-C4 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: Its main strength lies in its internal mechanical strength and resistance to rough handling .
Differences in details: The standard 34S series is mainly used in ordinary urban dump trucks and light trucks, with most internal parts made of plastic. The B-C4 heavy-duty model, however , is designed specifically for mines and construction sites. Its base is made of thickened die-cast aluminum alloy , and the internal core transmission cam and connecting rods are all made of high-strength reinforced metal . Even if the driver pushes and pulls violently and forcefully in harsh or emergency environments, the handle will not deform or misalign, thus avoiding internal air leakage caused by structural deformation.
A: This is a forced mechanical interlock protection function specifically designed to prevent "pump burnout and gear damage".
Protection Principle: After unloading, the dump truck needs to return the cargo box to its original position. When the driver pushes the main handle forward to the "lower" position, the metal mechanism at the bottom of the handle will mechanically push the power take-off switch back to the off position . This completely prevents the driver from forgetting to turn off the power take-off and then directly engaging gears and accelerating, thus perfectly protecting the truck's hydraulic pump from burning out due to prolonged high-speed operation, and also protecting the gearbox from gear damage.
A: The heavy-duty handle usually has a standard interface at the bottom, and the corresponding connector is as follows:
Port 1 (P): Air inlet, connected to the air source of the vehicle's brake air reservoir.
Port 21 (A): Lifting port, connecting to the lifting air chamber of the chassis hydraulic main valve.
Port 22 (B): Lowering port, connected to the proportional lowering air chamber of the chassis hydraulic main valve.
PTO interface: Connects to the pneumatic valve of the gearbox PTO.
If connected in reverse: If ports 21 and 22 are connected in reverse, the operation will be completely reversed (pulling the handle back will lower the cargo box, and pushing the handle forward will raise the cargo box). In this case, due to the different air circuit characteristics of lifting and lowering, the proportional slow descent function will completely fail , and the cargo box will descend to the bottom, causing great mechanical shock and safety hazards.
A: If air continues to leak when the device is completely stationary, it indicates that the seals or valve core inside the handle have worn out and failed .
Cause Analysis: Construction sites and mines generate a lot of dust. If the vehicle's air dryer filter fails, sand, metal shavings, or moisture will enter the air passage. When these impurities enter the handle, they can scratch the hardened chrome-plated valve core or damage the low-temperature resistant O-ring during high-frequency pushing and pulling. Once tiny grooves are created, high-pressure gas will leak at the stop position and escape from the muffler. In this case, the internal seals need to be replaced using an original C4 sealing repair kit . If the scratches on the valve core are too deep, the entire handle needs to be replaced.
A: Yes, it is generally acceptable. It is a general-purpose heavy-duty pneumatic pilot unit.
Matching conditions: As long as the hydraulic main valve under the chassis (such as QSGL-250L, DM140, or Hyva series) is pneumatically controlled (or pneumatically proportional controlled) , and the system control air pressure is within the range of 0.6 ~ 1.2 MPa , the BKGL34B-C4 can be perfectly matched. Its output standard variable pressure air signal can accurately drive most mainstream high-flow heavy-duty hydraulic valves on the market.
Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.
Heavy-Duty Pneumatic Control Valve BKGL34B-C4 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.
