Type-57 LIS Butterfly Valve (3" – 8")
Direct Replacement for ISO-5752 Short Pattern Metal Butterfly Valves
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.