High-Performance Resilient Seated Butterfly Valves

The three main types are resilient seated, high-performance (double offset), and triple offset butterfly valves. Resilient seated valves use an elastomer liner for bubble-tight shutoff at lower pressures, while high-performance and triple offset designs use metal or reinforced seats for higher pressure and temperature applications.

A 20-inch carbon steel resilient seated butterfly valve typically weighs between 300 and 450 pounds, depending on pressure class, end connection type, and manufacturer design. Exact weight specifications should be confirmed with the manufacturer's technical documentation for the specific model selected.

Standard bolt sizes for a 20-inch butterfly valve typically range from 7/8-inch to 1-inch diameter, depending on the ANSI pressure class (150 or 300) and flange standard. Bolt circle diameter and hole count vary by class, so confirming against ASME B16.1 or B16.5 flange tables is recommended.

Butterfly valves commonly range from 2 inches to 48 inches in diameter, with resilient seated versions typically covering 2 to 24 inches for standard industrial and pipeline applications. Larger custom sizes are available for specialized water, wastewater, and industrial process systems upon request.

Resilient seated butterfly valves use an elastomer liner for quick, bubble-tight shutoff and are lighter and more compact, while metal seated gate valves rely on rigid metal-to-metal contact suited for higher temperatures and abrasive media. Butterfly valves generally offer faster operation and lower installation costs.

The best butterfly valves come from manufacturers with proven track records, API certification, and rigorous quality control processes. Spicer & Sandburg partners with vetted, long-established manufacturers to supply carbon steel resilient seated butterfly valves suited for demanding oil, gas, and industrial applications.