DENIOS AG
Dehmer Strasse 58-66
32549 Bad Oeynhausen
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Email: info@denios.ie
Internet: www.denios.ie

3 steps to finding the right pump

Pumps allow safe and accurate filling from drums. Depending on the requirements, they are available in different versions. It is not only important to consider the suitability of the pump for the medium to be filled but the container size and the desired delivery rate are also important 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 criteria when selecting the appropriate pump is the material to be pumped. Liquids are highly variable in their viscosity and chemical properties. There is no pump that 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 optimised for pumping oils, lubricants and fuels, and therefore suitable for use with different viscosities.

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Pumps for chemicals, acids and alkalis

The safe handling of acids, alkalis and chemicals also requires specially equipped pumps. Small pumps for use un drums, chemical-resistant container pumps or high-throughout pneumatic diaphragm pumps are suitable for a wide range of applications.

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Pumps for flammable liquids

Pumps that are used in hazardous areas must comply with strict safety guidelines. DENIOS drum and container pumps are equipped with various features and approved in accordance with ATEX and IEC EX.

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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

Important for the choice of a suitable hand pump are the size and type of container, as well as the desired flow rate and the suitability of the pump for the medium to be filled. The pump must be resistant to the medium to be filled. In many areas, special occupational safety and environmental protection regulations must also be observed, e.g. for explosion protection.

Important note: The information was determined on the basis of laboratory tests with raw materials. Plastic parts manufactured from the raw materials are often subject to influences that are 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 taken into account.

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 compressed 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 filling of small quantities. The viscosity of the media to be pumped also has a considerable influence on the selection of the mode of operation.

We have clearly 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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Pros
Efficient & ergonomic for large flow rates
Efficient & ergonomic for viscous substances
Suitable for frequent and/or permanent operation
Cons
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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Pros
Fast and flexible use
Economical
Cons
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

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. For filling larger quantities from drums or filling from IBC, electrical or compressed air pumps are more suitable. 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 even suitable for abrasive or solids-containing substances, as well as media with extremely high viscosity.

3. Special requirements & practical accessories

Special applications also require special pumps which is why you will find in our extensive range a number of pumps for special requirements:

  • Gas-tight pumps for odorless filling of strong-smelling substances such as ammonia

  • Mini pumps for the safe filling of small quantities in the laboratory area

  • Specially tested and approved pumps for the food or pharmaceutical sector

  • Mobile pumps that combine the performance of a compressed air pump with optimum flexibility

  • Dry-running suitable pumps for applications where drainage from below (floor drain) is required

For optimal results, you can also rely on a wide range of accessories. Here you will find flow meters, anti-static kits for static electricity discharge, level indicators or drum wedges for tilting drums for optimal draining. Drum pumps generally have suitable threads for the respective application area or suitable for the container material. For all other applications, we have suitable thread adapters for the common package sizes in the program.

DENIOS Safety Tips for Filling from Barrels

Always remember your Personal Protective Equipment (PPE)

Before you begin any filling or refilling work, you must ensure that you are wearing suitable personal protective equipment (PPE). This legal requirement can include items such as goggles, gloves and hard hats - depending on the type of work that 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.

It may be appropriate to implement monitoring measures for employees, to ensure that you are able to offer rapid assistance in the event of 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 offer reliable protection. However, it is advisable to carry out filling and decanting work only in special designated areas that are 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.

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

Funnels from DENIOS

In order to prevent leakage of dangerous liquids during transfer the use of funnels is recommended.

DENIOS funnels are made of durable polyethylene or sturdy steel and there is a large range of different sizes to meet different requirements.

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We are happy to advise you!

Whether on the phone, via e-mail or in person at your premises - we are happy to help and advise you. Get in touch with us.

Free expert advice 01952 811 991

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The specialist information on this page has been compiled carefully and to the best of our knowledge and belief. Nevertheless, DENIOS AG cannot assume any warranty or liability of any kind, whether in contract, tort or otherwise, for the topicality, completeness and correctness either towards the reader or towards third parties. The use of the information and content for your own or third party purposes is therefore at your own risk. In any case, please observe the locally and currently applicable legislation.

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