AVK India / Case stories / Largest gate valve supplied: DN2200 and 7m tall Share Largest gate valve supplied: DN2200 and 7m tall Valves prevent saltwater intrusion to drinking water Fire Protection Water supply Wastewater Irrigation Gas supply Case Largest gate valve The largest AVK gate valve has just been installed in a wastewater transportation project in Jiaxing City, China, to meet the needs of an increasing wastewater production.