Gear Pumps: Reliable & Durable Pump Solutions Cast Iron Options

When it comes to pumping solutions, gear pumps are one of the most popular choices in the industry. Gear pumps work by using a set of rotating gears to transfer fluids from one place to another. They are ideal for applications that require a steady flow rate and a consistent level of pressure.

There are many different types of gear pumps available on the market, but two of the most common materials used in their construction are stainless steel and cast iron. In this blog post, we will explore these two materials in more detail and discuss their advantages and disadvantages when used in gear pump construction.

Internal Gear Pump

Before we dive into the differences between stainless steel and cast iron gear pumps, it’s important to understand the internal workings of gear pumps. An internal gear pump consists of two gears, an outer gear and an inner gear, that rotate against each other to create a vacuum and transfer fluid through the pump. The outer gear has teeth that mesh with the teeth on the inner gear, which creates a seal that traps the fluid between the gears and moves it through the pump.

Stainless Steel Gear Pump

Stainless steel gear pumps are often the preferred choice for applications that require sanitary pumping solutions. They are commonly used in the food and beverage industry, the pharmaceutical industry, and other applications where hygienic conditions are crucial.

Stainless steel gear pumps offer many benefits, including:

  1. Corrosion Resistance: Stainless steel is resistant to corrosion, making it an ideal material for use in harsh environments where the pump may be exposed to chemicals, saltwater, or other corrosive substances.
  2. Durability: Stainless steel is a strong and durable material that can withstand high pressures and temperatures without degrading.
  3. Easy to Clean: Stainless steel is easy to clean and sanitize, making it ideal for applications that require frequent cleaning to maintain hygiene.
Viking Spares is a well-known brand that offers a wide range of stainless steel gear pumps for various applications.

Cast Iron Gear Pump

Cast iron gear pumps are a popular choice for applications where cost is a significant factor. They are commonly used in industrial applications that do not require sanitary conditions. Cast iron gear pumps offer several benefits, including:

  1. Cost-effective: Cast iron is a less expensive material than stainless steel, making it a more cost-effective option for industrial applications.
  2. High Heat Tolerance: Cast iron can withstand high temperatures, making it ideal for applications that require the transfer of hot fluids.
  3. Good Wear Resistance: Cast iron is a hard material that offers good wear resistance, making it ideal for applications that involve abrasive fluids.

Gear Pump

Gear pumps are commonly used in a wide range of industries, including chemical processing, oil and gas, food and beverage, and many others. When selecting a gear pump, it’s essential to consider factors such as the type of fluid being pumped, the temperature and pressure requirements, and the overall operating environment.

In conclusion, both stainless steel and cast iron gear pumps have their advantages and disadvantages, and the choice between them ultimately depends on the specific application requirements. If hygiene and corrosion resistance are crucial factors, then a stainless steel gear pump may be the best option. If cost is a significant factor, then a cast iron gear pump may be the most suitable solution. Regardless of the material chosen, it’s crucial to select a high-quality gear pump from a reputable manufacturer to ensure reliability and durability.

If you’re looking for reliable gear pump solutions, Viking Spares offers a range of high-quality gear pumps made from both stainless steel and cast iron materials. Contact us today to learn more about our products and how we can help you find the perfect gear pump solution for your needs.