Butterfly Valves

Butterfly valves are named for the wing-like action of the flow-controlling disc, which operates at right angles to the flow. The disc has about the same diameter as the connecting pipe, and the flow is straight through, with a low pressure drop. Maintenance is easy due to the small number of moving parts. The butterfly valve can be used either as an on/off or modulating type of valve..

Asahi butterfly valves are currently installed in leading aquariums, swimming pools, mines, chemical processing plants, landfills and water and wastewater treatment plants in the United States and Central and South America.

Asahi/America has recently developed the advanced Type 57 valve, which has no metal to media or environment contact whatsoever. These valves may be operated manually, electrically, or pneumatically. Asahi offers numerous options for our butterfly valves including stem extensions, gear operators and limit switches.

Family of thermoplastic butterfly valves :
• Type 55 - Wafer Style, 2" - 10", Lever and Gear
• Type 56 - Please note: the Type 57 has replaced the Type 56 Butterfly Valve
• Type 57 - Industrial Grade, Lever 1-1/2" - 8" and Gear 8" - 14"
• Type 57L Lug GuardŽ - Industrial Grade, Lug Style, Lever 3" - 8" and Gear 8" - 12"
• Type 75 - Large sizes, Industrial Grade, 18" - 24", Gear
• Damper
• Pool-ProŽ - For chlorinated water, 1-1/2" - 12", Lever and Gear
• PDCPD Giant Butterfly Valve - Large Diameters, 28" - 40", Gear
• Butterfly Valve Options - Stem Extensions, Operating Nuts, Limit Switches, Tandem Valves, Chain Operators
• Plasgear - Plastic Gear Operators