Check valves are crucial for protecting upstream equipment, usually rotating equipment, from downstream changes in flow. Check valves must be properly sized, located and their behavior understood. All AFT software enables users to model check valves. In steady state solvers, check valves can be sized and determined if they will be open in steady state. AFT Impulse, a transient solver, will allow engineers to characterize how fast and what resulting surges will come of a valve closing.
In transient studies, an inertial swing check valve model can be used. Using the regular check valve model, users also have the option to specify closing limits. These limits may be important in preventing the creation of large surges when the valve closes. Additionally, valves that close too slowly may not provide adequate protection to equipment upstream.
Resources
Blog – Swing Check Valves: As Easy as Pie
As AFT's Director of Marketing, Susan is responsible for managing all marketing efforts for AFT including strategy development and implementation, website optimization, customer-facing materials, the monthly newsletter and E-marketing. Prior to joining AFT, she spent 17 years in a variety of positions at AT&T including Assistant to the Director of Marketing. Susan holds a Bachelor of Science (1988) and a Masters of Science (1991) in Management Science from Stevens Institute of Technology.