Olson Technologies Inc. features a line of Mosser and Homestead butterfly valves. The Mosser Series 830 are a rugged heavy duty design with large diameters. The Mosser Types AT and CT butterfly valves are suited for pressure differentials from 175 psi to 25 psi, and temperature ratings up to 350°F with materials of cast iron body, carbon steel disc, steel shafts, steel control handle, and Buna-N shaft seals.

Crispin features the K-Flo butterfly valve in 2 designs and in a size range from 3 to 168 inches. These products are fully compliant with the AWWA C504 standards. For municipal, power and industrial operations, the 500 series are heavy duty, resilient seated butterfly valves with flanged or mechanical joint configurations.

PDC manufactures butterfly valves for temperatures up to 1500 degrees Fahrenheit in sizes of 2 to 60 inches and in foundry cast iron and steel alloys. PDC products all possess tight machined tolerances, no typical weld fatigue, proper shaft alignment of rotating equipment and a wide choice of materials.

AVD produces a line of standard butterfly valves for tight shut-offs. The metal seated designs feature low pressure, cast iron body and cast iron disc. They are available in wafer or lug styles and can handle temperatures from -20 F to +450 F. Available seat designs include angle, step, scissor, clearance, resilient, o-ring, and tadpole seat.

Simtech is a provider of butterfly valves offered in either manually, pneumatically or electrically actuated configurations. Their manual VP Series feature bubble tight enclosures designed for flow control in minimum spaces. The pneumatically actuated VP Series butterfly valves offer electroless nickel plating for corrosion resistance. Simtech's electrically actuated VP Series feature heavy duty gears and permanent lubrication in a NEMA IV enclosure.

Ives Equipment Corp. is a US based stocking distributor of industrial parts and components. Product offerings include lined and high performance butterfly valves. Custom products are available as well.