The Swing Check Valve by Valvosider, compliant with ASME standards, is designed to prevent backflow in piping systems. It is available in various pressure classes and sizes to accommodate different operational needs. The valve classes range from 150 to 2500, with corresponding size ranges as follows: Class 150 and 300 are available in sizes from 2" to 48", Class 600 from 2" to 40", Class 900 and 1500 from 2" to 24", and Class 2500 from 2" to 12". Each class is identified by a specific figure number, ensuring easy reference and selection for specific applications.