Check & Pressure Relief Valves
Lee check valves are available in many configurations for every conceivable application. Choose from ball-style or poppet-style sealing elements, axial or side-exit flow paths, metal, polymeric, or elastomeric seats, and insert style configurations for installation into metal housings ...
Lee check valves are available in many configurations
for every conceivable application. Choose from ball-style or poppet-style
sealing elements, axial or side-exit flow paths, metal, polymeric, or
elastomeric seats, and insert style configurations for installation into metal
housings or press-in style for installation into plastics. These options will
allow you to optimize your design for different flow rates, packaging
requirements, pressure differentials, and allowable leakage.
· Ball-Style Check Valves
· High Flow Check Valves
· Zero Leak Check Valves
· Extreme Environment Check Valves
· Pilot-Operated Check Valves
Pressure relief valves are a critical component of fuel, hydraulic, and pneumatic systems in products across many industries. These valves can serve one of three functions – safety relief, pressure regulation, or protection against thermal expansion. Lee Pressure Relief Inserts are specifically designed for these functions, helping to guarantee the safety and reliability of your product.
· Safety Relief Valves
· Pressure Regulating Relief Valves
· Thermal Relief Valves
· Zero Leak Relief Valves
The Difference Between Calibrated Orifices and Holes
Engineers tasked with managing fluid flow talk about both holes and calibrated orifices, but they are two distinct entities. A hole can beany opening, but a calibrated orifice is specially designed to precisely control fluid flow. Consequently, its diameter, length, and geometry are critical to its intended operation. With the right design, an orifice can provide the desired control over fluid flow rates and pressure spikes.
Key Considerations for Selecting a Medical Pump
Newcomers to medical device design may think that pressure and flow rate are sufficient parameters to consider when it comes to selecting a pump. While this may be the case in some industrial applications, medical device requirements are a bit more demanding. A thorough review of the selection criteria for a medical pump is required to ensure the correct pump is chosen for every application.
Adapting Fluid Control Components for Hydrogen Applications
Although aviation is a relatively small contributor to global greenhouse emissions, it is also one of the fastest-growing. The major airline companies are aware that the goal of minimizing their carbon footprint is tied to the eventual elimination of the use of fossil fuels. Many of the industry’s major airlines have publicly announced plans to completely phase out carbon-based jet fuels from their operations in favor of a clean-burning alternative—hydrogen. Transitioning from fossil fuels to hydrogen will require modifications to or replacement of current technologies that control liquid fuel. As engineers assess the impact of these significant modifications, it is important that they address the unique challenges associated with controlling pneumatics in general and hydrogen in particular. This article addresses those challenges associated with the design of components used to control fuel between the storage tank and the combustion chamber of an aircraft, such as flow restrictors, valves, and filters.
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