Asahi/America Type-57 LIS, 4" PVC Butterfly Valve, PVC Wafer, Nitrile Seals
Item #3927040
- 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
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.
