Liquefied Gases

Liquefied Gases

Large liquified gas tanks

Liquified gases present many pumping difficulties including very low viscosity and lubricity, low specific gravity, low temperatures and require special sealing arrangements due to high inlet pressure. 

Positive displacement pumps, including close-clearance internal gear pumps and vane pumps are well suited to handling certain liquified gases due to their low NPSHr, low temperature metallurgy options, high pressure capabilities, resistance to vapor lock and many available sealing arrangements. 

Viking in the Process 

Viking pumps have been used for low volume transfer of a variety of liquified gases, particularly LPG (and its constituent gases) and carbon dioxide. Applications include cylinder filling, metering blowing agents for polyurethane processing and flash freezing.  

 

 

    Applications

    • Truck unloading 
    • Transfer to process 
    • LPG cylinder filling 

    Recommended Pumps

    Articles / Case Studies
    Collage of liquids with different viscosities like milk, orange juice, syrup, etc.
    Viscosity Through Thick and Thin
    Viscosity is a measure of a liquid’s resistance to flow. And you don’t need to work in a laboratory to observe this. Anyone who’s spent any time in the kitchen has observed a variety of liquids with a wide variety of viscosities.
    pressure gauge
    Current and Flow: An electrical engineer’s guide to the concepts of fluid systems
    Unlike most of my colleagues I didn’t start out with a mechanical background.  While they were studying kinetics and machine design, I was studying digital electronics and industrial power.  When I started my career in the world of pumps, I had to learn a whole new set of concepts.  What was surprising was that while the terminology may be a bit different, the concepts are very similar.  Think of the following as a “Rosetta Stone” for translating the common terms and concepts of fluid systems to your more familiar terms and concepts of electrical systems.
    Videos
    • Welcome to Viking Pump's Machine Shop
      This is Viking Pump’s machine shop in Cedar Falls, Iowa. Continual investments in machines and people simplify and expedite production – enabling shipment for thousands of products every year.
      February 28, 2025
      About Viking
    • Welcome to Viking Pump's Foundry
      This is Viking Pump’s foundry in Cedar Falls, Iowa. For decades, the Viking Pump foundry has been a pillar of our vertical integration capabilities – allowing for the nimble production of castings and parts to satisfy customer needs and support new product development.
      February 14, 2025
      About Viking