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3 steps to finding the right pump

Pumps allow safe and accurate drum filling. Depending on the requirements, they are available in different versions. It is crucial to consider the pump's suitability for the medium to be filled. The container size and the desired delivery rate are also critical criteria for ensuring the best pump is chosen to meet your requirements.

Here's how to choose the best pump for your application:

1. Medium

The most important criterion when selecting the appropriate pump is the material. Liquids are highly variable in their viscosity and chemical properties. No pump can satisfactorily convey all media - and, of course, the pump must also be resistant to the medium to be filled. Depending on the requirement, pumps are therefore optimized for different hazardous substances.

Pumps for mineral oil products

Mineral oil pumps are optimized for pumping oils, lubricants and fuels and, therefore, suitable for use with different viscosities.

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Pumps for chemicals, acids and alkalis

Safely handling acids, alkalis, and chemicals also requires specially equipped pumps. Small pumps for use in drums, chemical-resistant container pumps, or high-throughout pneumatic diaphragm pumps are suitable for various applications.

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Pumps for flammable liquids

Adapters allow for the exact fitting of bungs. Stainless steel hand pumps will enable you to safely pump flammable liquids or chemicals. Polypropylene pumps are resistant to weak acids, alkalis, and cleaning agents. Earth cables with Atex approval prevent any risk of explosion through static build-up and are available as separate accessories.

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Resistance lists:

Here you will find resistance lists in which we have already assigned the most suitable products to many common liquids:

Resistance list for selection of manual drum pumps

The size and type of container are essential for choosing a suitable hand pump, as the desired flow rate and the pump's suitability for filling the medium. The pump must be resistant to the medium to be filled. In many areas, exceptional occupational safety and environmental protection regulations must be observed, e.g., explosion protection.

Important note: The information was determined based on laboratory tests with raw materials. Plastic parts manufactured from natural materials are often subject to influences not detected in laboratory tests. For these reasons, the values given are only a recommendation. No legal claim can be derived from this information. In cases of doubt, we recommend carrying out a test. In addition to chemical resistance, other relevant regulations, e.g. explosion protection, must also be considered.

Resistance list for the selection of electric drum pumps

2. Mode of operation

Depending on how often and for what flow rates you want to use your pump, there are different modes of operation: Manual, electric and compressed air.  While electric and compact air pumps are usually designed for larger containers and, above all, allow a quick filling of large quantities, hand pumps are more suitable for the occasional packing of small quantities. The viscosity of the media to be pumped also has a considerable influence on the mode of operation selection.

We have summarised the advantages and disadvantages for you below:

Electric Pumps and Compressed Air Pumps

The safe handling of liquids of different viscosities requires the use of special pumps, especially for large containers or viscous substances.

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Efficient & ergonomic for large flow rates
Efficient & ergonomic for viscous substances
Suitable for frequent and/or permanent operation
Air or power supply required locally

Manuel drum pumps

Manuel filling of liquids or chemicals from drums requires specially equipped pumps. Depending on the equipment, a foot operation is also possible.

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Fast and flexible use
High power & time required for large flow rates
High force & time required for viscous substances
May not be suitable for heights
Not suitable for continuous use

Are you pumping from large containers?

To remove some liquid from a drum quickly and easily, it is also possible to use a hand pump. Depending on the model, the immersion tube can be adjusted to the depth of the container - and, therefore, also enables the removal of small quantities from larger containers. Electrical or compressed air pumps are more suitable for filling more significant amounts from drums or IBC. Models with different depths are also available as finished sets.

Electric or compressed air?

On the one hand, this depends on the connections available during operation. On the other hand, compressed air pumps can achieve better results, especially with "difficult" substances. Compressed air diaphragm pumps are suitable for abrasive or solids-containing substances and media with extremely high viscosity.

DENIOS Safety Tips for Filling from Barrels

Always remember your Personal Protective Equipment (PPE)

Before you begin any filling or refilling work, you must wear suitable personal protective equipment (PPE). This legal requirement can include goggles, gloves and hard hats - depending on the type of work you are carrying out.

Depending on which substance you want to pump and what your operating instructions specify, you may also need additional equipment, such as aprons to protect your body and respiratory equipment.

Implementing monitoring measures for employees may be appropriate to ensure that you can offer rapid assistance in an emergency.

Best precautions to prevent drip losses

When removing pumps from containers, trailing liquid can lead to drip losses. Safety stands for barrel pumps with an integrated collecting container that offers reliable protection. However, it is advisable to do filling and decanting work only in particular designated areas, not within passageways and traffic routes.

You may also need to use a suitable absorbent to catch any spillage.

Additionally, you can place the drum on a spill pallet to catch drip losses.

Install a SpillGuard® - the new hazardous substance warning system available only from DENIOS to guarantee that leaks are detected. Created by our experts, this revolutionary alarm system quickly and efficiently detects leaks, releasing a continuous alarm and LED light system over 24 hours.

Funnels from DENIOS

To prevent leakage of dangerous liquids during transfer, funnels are recommended.

DENIOS funnels are made of durable polyethylene or sturdy steel, and there is an extensive range of sizes to meet additional requirements.

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