_:nf99a73d3c9c64bfc98771f73fa13ff97xb0
<http://schema.org/description>
"The Fisher A31D is a double&amp;#45;flange, high performance Butterfly valve featuring either a splined drive shaft or a keyed drive shaft. The A31D is used in throttling or on/off service and is available in NPS 3 through 12, CL150 and CL300."
<https://www.scalloncontrols.com/products/valves-actuators-regulators/control-valves/high-performance-butterfly-valves/fisher-a31d-doubleflange-butterfly-valve/>