Chemical Liquid Transfer Pump – What you need to know

Above: Magnetic Drive Pump on site

When it comes to buying a chemical liquid transfer pump, there are several application and pump requirements you will need to take into consideration.

Here, we look at different specifications and information you will require. It’s important that prior to purchase, you speak to an expert, as if the incorrect pump is selected it could cause bodily harm, as well as environmental impact.

The materials used for the construction of the pump must be compatible with the chemical it will be pumping. Acids, such as sulphuric acid and hydrochloric acid are especially corrosive and could damage the internals of the pump.

There are two varieties of pumps:

Stainless Steel Pumps and Metal Pumps – these can be classified as ferrous or non-ferrous and are manufactured from stainless steel, a nickel alloy or titanium to protect from corrosion.

Non-metallic pumps – these are constructed from rubber (natural and synthetic), ceramics, special plastic such as polypropylene and PVDF. Non-metallic pumps are commonly used for corrosive materials.

How to select the right chemical pump?

1. Consider the application requirements
2. Understand the chemical media properties
3. Acknowledge of the pump’s abilities to perform the task

Consider the following attributes during your chemical pump selection

Materials of construction

• What is the pump made of?
• Environment, and
• maintenance of the pump

Pump sizing and performance

• flow,
• pressure,
• temperature and
• piping system

Pump type and actuation

• control and function
• media

Connections, certifications and features

• piping system
• is it industry specific?
• Does it comply with codes and standards?

Centrifugal pumps are the most frequently used pump for chemical liquid transfer applications. Due to their simplicity and effectiveness, they are the preferred pump. However, there are a variety of pumps suitable for chemicals, including but not limited to:

• Diaphragm Pumps which are air operated
• Drum pumps / Barrel Pumps
• Magnetic drive pumps

For more information on chemical pumps or to find out which one would be best suited to your application, contact our team of experts. Kecol Pumping Systems have worked with a variety of national businesses, and have a firm understanding of chemical pumps and their suitability.