Guide To Choosing A Pump For The Chemical Industry


Chemical pumps are those that are used in the production of chemical substances and compounds. The design and construction of chemical pumps are capable of withstanding a wide range of viscosity, corrosiveness, and abrasiveness in different substances. Some chemical pumps are also metering pumps, which allow controlled measure and chemical flow. A wide range of industries uses chemical pumps, including general industrial, oil and gas, brewery and distillery, semiconductor, and more. 

There are several factors to consider when purchasing a chemical pump. Choosing the right pump for a certain application is the first step in selecting a chemical pump that will meet the needs of the application and the chemical media. When selecting a chemical pump, these are some of the most important factors to keep in mind. What are those? Let’s discuss.

Material of Construction

The first factor to examine is chemical compatibility. The pump’s materials must be compatible with the chemical medium. Because many chemicals are prone to corrosion, choosing a pump made of a chemical-friendly material is critical.

Pump building materials may be divided into two broad categories:

Metal: Ideal for withstanding abrasives and slurries

  • 316 Stainless steel 
  • Cast iron
  • Alloy C 
  • Aluminum

Non-Metal:  Solid but lightweight designed for a wide variety of chemical compatibility.

  • Polypropylene.
  • Acetal
  • Conductive Polypropylene
  • Conductive Acetal
  • Kynar Nylon

Pumping Size & Specification

The performance of pumps and size specification is the most important things to consider while selecting the pumps. An analysis of chemical pump findings suggests that maximum discharge flow was the most often demanded criteria by engineers and technical buyers. Inlet size, discharge size, and medium temperature were used in that order.

Incorrect sizing of a pump might cause difficulties with the system. A substantially oversized pump can allow a motor to be lightly loaded (below 50% of full load) when configured appropriately. 

Using oversized pumps is estimated to cost businesses billions of dollars each year in process industries. Multiple contractors are also a factor, each with its own set of perceived requirements. It’s like the childhood game “telephone” until the last contractor gets involved. When designing the pump, engineers may have included too much safety or prepared for future adjustments.

Most Used Pumps For Chemical Industries

There are a variety of designs in chemical pumps used in chemical industries.  For pumps that suit the chemical industry, it is necessary to select the right pump.

Centrifugal Pumps

Centrifugal pumps are the most important pumps used in the chemical sector. They are low-cost and simple in design pumps. They employ one or more impellers that enable the circulation of fluid. The impellers in the pumps create flow in one of the three directions which are axial, radial, or mixed.  

Centrifugal Process Pumps new pump

  • Axial flow pumps work like a boat propeller and push the liquid in a direction that is parallel to the impeller shaft. 
  • Radial flow pumps have high pressure and low flow. 
  • Mixed flow pumps direct liquid away from the pump shaft at an angle greater than 90 degrees. Pressure is generated by both centrifugal force and the impeller’s lifting action. Mixed flow pumps have properties of both axial and radial flow pumps, with a medium flow and medium pressure.

Rotary Gear Pumps

Rotary pumps are used in the chemical and are the positive development pumps. Positive development pumps are those pumps that are used in the transferring of viscous fluid at a steady rate through a system. These pumps are more effective than centrifugal pumps and create more resistance by transferring low-speed fluid. 

Rotary Gear Pump

Gear Pumps

Gear Pumps are used to move the fluid by repeatedly enclosing it inside interlocking cogs or gears and transferring it mechanically in order to give a smooth pulse-free flow. It is proportional to the rotating speed of its gears. A gear pump is a type of reciprocating piston pump that moves fluid.

Diaphragm Pumps

Diaphragm Pumps are the positive development pumps that are used to move the cement slurry out of the basement. As we all know the properties of cement slurry is very abrasive which cause a number of problem to the pumps. 

Sujal Engineering: The Right Choice for Your Chemical Industry Pumps

Sujal Engineering pumps are one of the safest and most effective pumps on the market today, making them one of the finest options for handling chemicals. Since 2009, we have emerged as a leader in creating an effective pumping solution for chemical industries. 

We use sound infrastructure and advanced technology to meet the requirement of all the sectors pumping industries and cater to the need of each and every individual. So, if you are also searching for the best pumps, then contact us by clicking here,  and our team will get back to you with information.

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