The underground ball valve has acquired ISO9001,BS6722,API6FA certificates, excellent quality with competitive price. It applys to all kinds of pipelines, such as city heat supply, industrial water, natural gas running piping, petrochemical industry, steel enterprise, etc.Pressure range: 1.6-10.0 MpMaterial: PTFE, nylon, carbon steel, alloy steel, cemented carbide, suit of different temperature, ...