What is a Rotary Hand Pump? Pros and Cons of Oil Pumps

The oil pump is a useful tool widely used in various fields, from industry and agriculture to daily life. With its simple design, ease of use, flexibility, and high applicability, the oil pump has become a powerful assistant in transporting and pumping liquids, especially lubricants.

Detailed Component Structure of a Rotary Hand Pump

A rotary hand pump is a tool used to transfer liquids from one container to another. If you need to move the containers themselves, the transporter can use a mini crane to do so easily. Below is the general structure of a rotary hand pump:

Pump Housing

The pump housing is made from cast iron, steel, or aluminum. This material must be durable and corrosion-resistant to ensure the pump’s long-term operation. This part encloses and protects the internal components of the pump.

Suction and Discharge Pipes

The suction pipe leads oil from the container into the pump. The head of the suction pipe is usually submerged in the oil. The discharge pipe leads oil from the pump to the target container or desired location.

Pump Shaft and Hand Crank

The pump shaft is a metal rod connecting the hand crank to the moving parts inside the pump.

The hand crank is the external part that allows the user to apply rotational force to the pump shaft.

Gears or Vanes

Gears or vanes can be made from metal or wear-resistant plastic. This is the primary component that generates suction and pushes the oil. Rotary hand pumps can use either gears or vanes depending on the design.

Check Valve

A check valve is a valve that allows oil to flow in a single direction, from the suction pipe into the pump and from the pump out to the discharge pipe. The non-return valve prevents oil from flowing backward.

Seals

Seals are gaskets used to prevent oil from leaking out at the connection points between components.

>>> What is a Mini Diesel Pump? Common Applications of the Pump

Operating Principle of a Rotary Hand Pump

Manual oil pumps operate on the principle of creating pressure. When the user turns the hand crank, a mechanism is activated to create pressure inside the pump body. This pressure generates suction, drawing oil from the container through the discharge valve into the pump. Subsequently, the oil is pushed out through a delivery hose for various needs.

See more: What is a 220V Diesel Pump? Advantages of Use

Pros and Cons of Using a Rotary Hand Pump

Advantages

• Compared to other types of oil pumps, rotary hand pumps are more affordable and fit the user’s budget.
• Rotary hand pumps have a simple structure, making them easy to use and maintain. Users do not need extensive specialized knowledge to operate and maintain the pump.
• The oil pump is compact and lightweight, making it easy to move.
• The pump does not require electricity, allowing users to be proactive, especially in places without a power source.
• Oil pumps are applied in many different fields, such as pumping lubricants for cars, motorcycles, industrial machinery, and chemical pumping…

Disadvantages

• Compared to other oil pumps, rotary hand pumps have lower productivity and are not suitable for tasks requiring large volumes of oil.
• Users need manual effort to turn the pump, which can be tiring.
• The pump may face difficulties when handling high-viscosity liquids.
• Some types of rotary hand pumps have limited durability and may be prone to damage after a period of use.

See more: Applications of Diesel Hand Pumps

Conclusion

The rotary hand pump is a useful solution for saving costs in oil transport. Despite limitations in productivity and manual effort requirements, its advantages in price and portability make it a popular and suitable choice for many tasks that do not require high performance. We hope the information provided by Naltako has helped you better understand the equipment and invest effectively.