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PVD-2B-40 Charge Pump
Green Hydraulic
Yes
ISO9001，CE
1. Industrial Hydraulic Systems 2. Mobile Equipment (Industrial Vehicles) 3. Construction and Engineering Machinery 4. Metallurgy Industry
spline shaft
1 set
Product Description
The PVD-2B-40 Charge Pump functions as an important low-pressure oil supply unit in hydraulic systems. It is installed on the hydraulic main pump and is designed to provide the main pump with stable charge flow and charge pressure. The pump operates based on the principle of volumetric hydraulic transmission. Through the meshing rotation of external gears, the volume of the sealed working chambers changes, enabling continuous suction and discharge of hydraulic oil.
The charge pump helps maintain favorable suction conditions for the main pump, supplies oil for system control circuits, and provides necessary lubrication and cooling for key internal components. When the main pump hydraulic circuit operates under long-term heavy-load conditions, the charge pump ensures a stable charge pressure supply, helping prevent cavitation and insufficient oil supply. This effectively reduces wear and potential damage to critical components such as pistons, bearings, and valve plates, ensuring stable and efficient operation of the entire hydraulic system, extending equipment service life, and reducing maintenance costs.
Low Noise & High Efficiency：Optimized gear design ensures smooth operation, low noise, and high volumetric efficiency.
Improve Main Pump Stability：Provides stable charge oil flow to maintain proper lubrication and cooling of the main pump.
Extend Hydraulic System Service Life：Reliable charge oil supply reduces wear and helps extend the lifespan of the hydraulic system.
Multiple Control Options：Compatible with different hydraulic control systems to meet various application requirements.
Specifications
| Type | Gear Pump |
| Model | PVD-2B-40 |
| displacement（cm³） | other |
| Shaft Type | Same as the main pump |
| Function | Completely interchangeable with original pump |
| Material | Cast/Ductile iron, steel, bronze and others |
| Processing technic | Cutting, lathe, machining center, heat treatment, grind, honing, burring and so on |
Applications
Hydraulic drives with high pressure, heavy load, variability, large displacement, long service life, and reliability.
Steel metallurgy and forging machinery
Ceramic and refractory material presses
Shipping and hydroelectric systems
Rubber vulcanization and paper production
Petroleum equipment
Construction and mobile machinery
Railway and tunneling machines
Charge pumps 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.
1. What makes the PVD-2B-40 Charge Pump different from smaller models?
It offers higher flow capacity and improved pressure stability, making it suitable for medium-duty hydraulic systems.
2. What type of excavators is it best suited for?
It is ideal for 8–15 ton excavators requiring stable and continuous hydraulic oil supply.
3. Can it operate under continuous heavy-duty conditions?
Yes, it is designed for continuous operation with stable performance under medium to heavy workloads.
4. What are the key performance advantages?
It provides balanced efficiency, stable pressure output, and reliable operation.
5. Is it resistant to high temperature environments?
Yes, with proper hydraulic oil, it performs reliably under high-temperature working conditions.
6. Where is it installed?
Mounted on the rear section of the main piston pump.
7. What maintenance is recommended?
Regularly check oil cleanliness, filters, and seals to ensure long service life.
8. Do you support customized configurations?
Yes, customization for logo, packaging, and specifications is available.
Charge pumps 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 pump does not contain hazardous materials.
Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.
FAQ
The pump's flow is adjusted by changing the angle of an internal swash plate. As the swash plate angle changes, the stroke length of the pistons varies, which in turn changes the volume of fluid displaced per rotation, allowing the flow rate to adapt to the system's needs.
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 Green 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.
All hydraulic pumps produced by Green Hydraulic have undergone compliance testing, ensuring their quality and reliability.
To meet the diverse needs of different industries, the green 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.
