Asahi Type-57 LIS Butterfly Valve (3''-8'')

Manufacturer: Asahi

Type-57 LIS Butterfly valves are quarter turn plastic valves with equal percentage type flow characteristics. They provide moderate flow control and therefore can be used for both on/off and modulating service. Good tolerance to suspended solids but not recommended for use with slurries or debris. The Type-57 LIS butterfly valve is well suited for a wide variety of fluid flow applications. The Type-57 LIS butterfly valve conforms to ISO 5752 Short Pattern face to face dimensions. This allows the Type-57 LIS to directly replace metal valves conforming to the same standard. Available as ANSI B16.5 Wafer or ANSI B16.5 Lug models with 316SS drop-in lug inserts. Can be pneumatically or electrically actuated.

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Features Applications Model Document

Direct Replacement for metal valves conforming to ISO-5752 Short Face to Face dimensions.
Standard model has PVC body with PP disc for superior chemical and corrosion resistance as well as elevated temperature capabilities.
Non-wetted 316 SS stem has full engagement over the entire length of the disc and is totally isolated from the media.
Full seat design isolates the body and stem from the media and acts as mating flange gaskets
Integral body stops in valve body to prevent overtightening of mating flanges
Spherical disc design for improved CV's and superior durability
Integral locking lever handle w/21 position throttling plate
Plasgear™ operator – Industry first composite enclosure gear-operator
Integral ISO-5211 top mounting pad for actuation mounting
Polypropylene stem retainer to prevent stem