Product Type: Ball ValveProduct Name: 3-PC Body Floating Ball ValveProduct Details:Place of Origin: ChinaCertification: ISO9001-CEProduct DescriptionFor the purpose of preventing the stem from flying off resulting in abnormal rising of the inner pressure of valve,shoulder is fixed at the lower part of the stem.In addition,in order to prevent leakage resulting from burnout of packing set of the stem in a fire,thrust bearing is set at the contact position of the shoulder at lower part of the stem and valve body.Thus an inverse seal seat is formed which will prevent leakage and avoid accident.