API 609 / ASME B16.34
Concentric Butterfly Valves
Utility, water and general process isolation. Size range 2–48 in; available classes: Class 150, Class 300.
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Process, water, cooling, utilities, power, lng and large-bore isolation. Compare design standard, pressure class, size range, materials and end connections before selecting a product family.
Request a QuoteProduct Collections
Choose the construction that best fits your service. Each collection shows the available pressure classes and project configuration options.
API 609 / ASME B16.34
Utility, water and general process isolation. Size range 2–48 in; available classes: Class 150, Class 300.
View product range →API 609 / ASME B16.34
Reduced seat wear and reliable shutoff in higher-duty service. Size range 3–72 in; available classes: Class 150, Class 300, Class 600.
View product range →API 609 / ASME B16.34
Metal-seated isolation in higher-temperature or severe-service applications. Size range 3–72 in; available classes: Class 150, Class 300, Class 600, Class 900, Class 1500.
View product range →API 609 / ASME B16.34
Compact process isolation where dependable shutoff and lower weight are valued. Size range 2–48 in; available classes: Class 150, Class 300, Class 600.
View product range →Selection Guide
For butterfly valves, review offset design, seat material, body/disc material, end pattern, operator and shutoff requirement. The final selection should match the piping class, service conditions and project specification.
Typical Applications
Process, water, cooling, utilities, power, lng and large-bore isolation. Confirm fluid, pressure, temperature, cycling frequency and shutoff requirements before quotation.
Engineering Resources
Use these guides to compare designs, materials, end connections and RFQ requirements before selecting a valve family.
Send your valve list, datasheet or piping specification for review.