Resources Datasheet - 205 kb Specifications  - 26 kb Chemical Resistance Selector O&M Manual - 363 kb

Description

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/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.

Features and Benefits

• ISO-5211 Top Flange - Industry standard for accessory mounting
• O-Ring Seals (EPDM, FKM) - For chemical resistance
• Non-Wetted Metal Parts - Metal components never come in contact with the media
• Body - Wafer style minimizes space requirement
• Stem - Dual stems: Two-piece stem fully engages with the disc
• Disc - Spherical design for reduced break away and seating torque
• Liner (Seat) - Full seat design eliminates the need for additional gaskets
• Ductile cast iron inserted metal into the disc and body for strength