HPV116/HPV145 Charge Pump

HPV116 and HPV145 Charge Pump  Overview

The HPV116 and HPV145 Charge Pumps serve as essential low-pressure oil supply units in hydraulic systems. They are engineered to deliver stable charge flow and maintain consistent charge pressure for the main pump. Operating on the principle of volumetric hydraulic transmission, the rotation and meshing of external gears change the volume of sealed working chambers, enabling continuous suction and discharge of hydraulic oil.

These pumps ensure optimal suction conditions for the main pump, provide oil to pilot control circuits, and offer necessary lubrication and cooling for critical internal components. During long-term operation under high-pressure and heavy-load conditions, the charge pumps maintain stable charge pressure, preventing cavitation and insufficient oil supply. This helps minimize wear and protect key components such as pistons, bearings, and valve plates, ensuring smooth and efficient hydraulic system performance, extending equipment service life, and reducing maintenance costs.

Core Features & Advantages

• 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

Applications

1. Hydraulic drives with high pressure, heavy load, variability, large displacement, long service life, and reliability.

2. Steel metallurgy and forging machinery

3. Ceramic and refractory material presses

4. Shipping and hydroelectric systems

5. Rubber vulcanization and paper production

6. Petroleum equipment

7. Construction and mobile machinery

8. Railway and tunneling machines

Packaging & Delivery

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.

HPV116 and HPV145 Charge Pump FAQ

1. What is the function of the HPV116 / HPV145 Charge Pump?

It provides stable low-pressure oil supply to the main hydraulic pump, ensuring proper lubrication, cooling, and preventing cavitation.

2. What is the difference between HPV116 and HPV145 models?

HPV145 offers higher flow capacity and is suitable for heavier-duty conditions, while HPV116 is designed for moderate flow requirements.

3. Are these charge pumps suitable for continuous operation?

Yes, both models are designed for stable performance under long-term continuous working conditions.

4. Do they support high-speed rotation?

Yes, they can operate reliably at high rotational speeds within their design limits.

5. Do they help prevent cavitation in the main pump?

Yes, by maintaining stable charge pressure and proper suction conditions, they effectively prevent cavitation.

6. What are the key advantages of these charge pumps?

They feature high efficiency, stable oil supply, durable construction, and long service life.

7. What maintenance is required to ensure long service life?

Maintain clean hydraulic oil, replace filters regularly, and inspect seals to prevent leakage and wear.

8. Can these pumps improve overall system performance?

Yes, stable charge pressure and proper lubrication help improve system efficiency and reduce component wear.

Certifications & Quality Assurance

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

1.How does the variable displacement work?

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.

2.Are you a manufacture for the vane pump or a wholesale ?

We are a manufacture for vane pumps。.We are located in Changzhou City, Jiangsu Province, China.Welcome to visit us.

3.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.

4.What is your payment terms?

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.

5.Can you make my own brand on the products?

Of course we can. Just send me your logo  we can make it for you.

6.What is our main export market?

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.

Green 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 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.

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.