PVD-1B-32P 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-1B-32P Charge Pump is designed to act as a dedicated auxiliary oil supply unit for hydraulic systems. Installed in conjunction with the PVD-1B-32P main pump, its primary role is to deliver a steady charge flow and maintain the necessary pressure to support smooth main pump performance.
The pump adopts an external gear-driven structure. As the gears rotate, sealed chambers are formed and displaced, creating a continuous cycle of oil intake and discharge. This mechanism ensures a reliable and uninterrupted flow of hydraulic fluid.
By supplying sufficient oil to the inlet side of the main pump, the charge pump improves suction conditions and also feeds hydraulic oil to control circuits. At the same time, it contributes to the lubrication and cooling of internal moving parts.
During extended heavy-load operation, it maintains consistent charge pressure, effectively preventing issues such as cavitation and insufficient oil supply. This helps protect key components including pistons, bearings, and valve plates from excessive wear.
Overall, the use of the PVD-1B-32P charge pump enhances system stability, improves operational efficiency, extends equipment lifespan, and reduces maintenance frequency and associated costs.
Low Noise & High Efficiency：Precision-optimized gear structure delivers stable running, low noise levels and superior volumetric efficiency.
Improve Main Pump Stability：Consistent charge oil flow supports reliable lubrication and cooling, boosting the stability of the main pump.
Prolonged Hydraulic System Lifespan：Stable charge oil supply effectively lowers component wear and extends the service life of the hydraulic system.
Versatile Control Compatibility：Works with a variety of hydraulic control systems to adapt to different working conditions and applications.
Specifications
| Type | Model | displacement（cm3） | Shaft Type |
| Gear Pump | PVD-1B-32P | other | Spline Shaft |
Applications
Hydraulic systems of crawler excavators
Supporting oil supply for PVD series main hydraulic pumps
Medium-sized construction machinery
Earthmoving equipment and infrastructure projects
Mining and heavy-duty hydraulic applications
Industrial hydraulic systems requiring stable charge pressure
Machinery operating under continuous or heavy-load conditions
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.
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.
PVD-1B-32P Charge Pump FAQ
A: No, it is integrated with the main pump and does not require separate installation. When replacing, ensure that the spline shaft is accurately aligned with the main pump drive shaft, tighten the fixing screws with a torque wrench, keep the contact surface flat and free of impurities, and use a seal ring of the correct size to ensure sealing performance.
2.What main pumps or machines does PVD-1B-32P fit?
A: It fits closed-loop hydraulic systems in small piston pumps, excavators, skid steer loaders, mini construction machinery, etc.
3.How to troubleshoot low charge pressure?
A: Check clogged suction filter, air leakage in inlet line, charge pump wear, relief valve sticking or incorrect pressure setting.
4. What causes excessive noise during operation?
A: Mostly caused by cavitation, air in oil, gear wear, bearing damage or misalignment during installation.
5. What hydraulic oil is recommended and how often to replace?
A: Anti-wear hydraulic oil (ISO VG 46) is recommended; replace every 1500–2000 hours under normal working conditions.
6.How to fix external leakage?
A: Check shaft seal, O-rings and end cover mating surface; replace aged/damaged seals and ensure flat and tight mounting.
7.Why does the charge pump fail frequently?
A：Oil contamination, insufficient suction, no air bleeding at startup, high internal leakage of main pump, misalignment or overload shock.
8.What are the tips for installation and startup?
A：Ensure alignment, fully bleed air, pre-lubricate with oil, test at idle speed first, and load only after normal pressure and noise are confirmed.
It supplies stable charge flow, lubrication and cooling for the main hydraulic pump, maintains control pressure, and extends the service life of the hydraulic system.
We are a manufacture for vane pumps。.We are located in Changzhou City, Jiangsu Province, China.Welcome to visit us.
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.
