Barrel pumps (also known as drum pumps or transfer pumps) are devices designed to transfer any fluid from a container easily and safely. These devices come in various models, designs, accessories, tube length, and technology used. The goal of the difference in technology is to satisfy different industry requirements. Some transfer pumps rely on manual operations (using handles, lever, and stop valves), whereas others are used as a plunger to dispense the fluid.
How Do Drum Pumps Work?
Many processing plants and manufacturing companies use a drum or transfer pumps extensively, making them a great and important piece of production. They are greatly used to either store or transfer reagents, chemicals, and basically any fluid type. They are used in cases where the water barrel pump or drum is too heavy to tip up to dispense or empty safely. However, with the help of a transfer pump, it makes the work of transferring fluid from one container to the next a safe and effective manner.
A transfer pump consists of the following components; the pump section, immersion tube, and a motor section if it is not manually operated. Motor operated barrel pumps are designed in a way the motor sits on top of the immersion tube and outside on the drum. The function of the immersion tube is to reach deep down into the container in order to collect the fluid. As such, they are long and can often fit through the drum’s cap hole. These drum pumps come with different immersion tube length to cater to different container depth and material.
As mentioned, different types of transfer pumps use different technology to displace fluid. For example, if your goal is to transfer low or medium viscosity fluids, then a centrifugal using pumps with either double or multiple impellers will do.
For heavy viscosity fluids, a positive displacement pump is the best option. If you have a medium viscosity fluid of up to 2000cP; then it is wise to invest on a transfer pump with a screw-type lift technology. This type is best used to transfer solvents, paints, and food products.
If you are dealing with heavy viscosity types of fluids of up to 100,000cP, then it would be wise to invest in a progressive cavity design pump. This pump type can be used to transfer fluids like bath gel, hair, juice concentrate, honey, polymers, lotions, silicone, gear lube, glycerine, adhesives, waxes, solvents, resins, corn syrup, oil, and others.
Common Features Of A Drum Pump
All drum pumps contain several components designed to work together in order to lift fluids from the immersion pump to the outer pump tube. It is wise to ensure the wet areas of the pumps are corrosion resistant. If the working fluid is combustible, it is important to work within the safe operating temperature. The pump’s tubes and other parts are made of pure polypropylene, CPVC, PVDF, 316 and Stainless Steel.
These pumps are flexible and designed to handle various types of fluids. Others pumps offer a range of interchangeable motors and immersion tubes for different application and operating temperature. In other words, it makes changing the motor quickly and easy; even disconnecting. If the electrical supply is not available, then one can opt to use air-powered motors. Replaceable parts can be found easily. Remember, the tube length is influenced by the size of the container.