Yeah, you can easily use the butterfly valves in chilled water-line. Split Butterfly Valves which is often called as SBV or the Containment Valves usually provides safe method of the transferring products from a container or the process vessel into another. The concept of SBV actually was designed as containment device for contained transfer of the API which provides critical protection of operation. Now a days you can see the SBV theory is mostly applicable in industrial applications. From a good producer and supplier you can get such containment valves for pharmaceutical and chemical uses for different industries. SBV actually works in two separate units what is need to know also.