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. 

Follow these steps to find the right pump:

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.

Resistance lists:

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

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 summarized the advantages and disadvantages for you below:

Pumping from large containers?
To remove liquid from a drum quickly and easily, it is to use a hand pump. Depending on the model, the immersion tube can be adjusted to the depth of the container - and 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 tests fed 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.

The use of funnels is recommended to prevent leakage of dangerous liquids during transfer.

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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