Product Name: Electric High Vacuum Butterfly Valve (GID) Model NO.: GID Trademark: Pioneer Transport Package: Plywood Case Specification: CE, TS, SGS, ISO9001 Origin: China HS Code: 8481804090 Product Description GID Series electric high butterfly vacuum valve is a device which use electrical device to driver valve plate opening or closing to turn on or cut off the vacuum airflow.The applicable media is air and non-corrosive gas. In order to get the control automatically and reasonably please elect the signal feedback device.ISO-F, ISO-K, CF each flange end is Available!