Category: Flow control

  • TIG (Tungsten Inert Gas) Welding

    App Note:TIG (Tungsten Inert Gas) Welding In the TIG (tungsten inert gas) welding process, a tungsten electrode is used to provide an electric arc forwelding. A sheath of inert gas surrounds the electrode, the arc and the area to be welded. This gas shielding process prevents any oxidization of the weld and allows for the […]

  • Reliable Air Delivery for Automated Liquid Paint Application

    App Note: Reliable Air Delivery for Automated Liquid Paint Application Robotic painting, one of the sectors within the Coatings Industry, has several applications in which mass flow is critical to paint application and control. In a typical application, paint is dispensed at the end of a robotic painting arm that articulates close to the surface, […]

  • Automation of Paint Application Pressure Control System

    App Note: Automation of Paint Application Pressure Control System ACME Robotics has a semi-automatic paint spraying machine. Semi-automatic, you ask? What does that mean? It means that if they want to adjust the flow of N2 around the paint distribution capillary tube, the must do it manually via a regulator. They want to produce this […]

  • Product Sparging

    App Note: Product Sparging Sparging is a process where a gas is injected into a liquid to achieve a variety of results. The sparging bar has many fine holes through which the gas is transferred into the product in the sparging tank. Maintaining a constant flow rate is crucial in order to obtain the desired […]

  • SOFC Fuel Cell Temperature Control

    App Note: SOFC Fuel Cell Temperature Control Alicat Controllers in SOFC Applications Traditional fuel cell stacks are dependent upon mass flow control devices to regulate the flow of fuel gas into the reformer (in the case of hydrocarbon fueled systems) or hydrogen and air or oxygen directly into the stack (in the case of hydrogen […]

  • High-Temperature Hydrocarbon Distillation

    App Note: High-Temperature Hydrocarbon Distillation Mass Flow Control for High Temperature Gases Performing precise mass flow control of gases at high temperatures can be tricky. Electronics systems can fail or malfunction at high temperatures. Temperature and pressure compensation of mass flow rate becomes even more important at extreme conditions. At Alicat, we pride ourselves in […]

  • Optimizing Bioreactor Production

    App Note: Optimizing Bioreactor Production Bioreactors are used in a growing number of applications, from producing bio-adaptive medicines or environmentally friendly fertilizers and pesticides, to brewing beer, refining ethanol and treating wastewater. Alicat Scientific’s broad range of mass flow controllers simplifies and streamlines your bioreactor development lifecycle. Using one family of instruments with your choice […]

  • Controlling Flow to Fine Adjust the Valves in a Dual Valve Assembly

    App Note: Controlling Flow to Fine Adjust the Valves in a Dual Valve Assembly ACME Pipe & Valve has an unusual situation. They are trying to match the flow rate through two valves in a dual valve assembly. Adjust one valve seat and the other is off, and vice versa. Is this type of adjustment […]

  • Fuel Cell Membrane Test

    App Note: Fuel Cell Membrane Test This system is used to increase reliability, repeatability and speed of leak tests on Solid Oxide Fuel Cell (SOFC) membranes. The test is performed with helium gas. The dual valve pressure controller (PCD) replaces the manual pressure regulator. With the automatic adjustments for line pressure changes, the PCD introduced […]

  • Controlling pH with CO2 Injection

    App Note: Controlling pH with CO2 Injection A customer approached Alicat with a water treatment application in which CO2 would be sparged into a body of water in order to control the pH level of the water. The application involved the need to control mass flow over a wide flow range, while at the same time reducing […]

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