浮阀接头与浮阀 (石油设备)
浮阀通常安装在钻具接头的标准孔中,用以控制钻杆底部的液流。在停泵换钻杆时,浮阀还能防止切屑从钻头喷嘴中返回。浮阀接头是一个钻具接头,在其内孔中装有浮阀。接头的螺纹由用户指定。供方按螺纹的大小根据API标准配装浮阀。接头的技术要求符合SY/T52001-2002及API标准规定。msn:xiaoyouloveyouhotmail.comthis float valve is normally installed in a standard bore-back of the bit sub, to provide fluid flow control at the bottom of the drill stem. it also prevents backflow of cuttings from plugging the drill bit jets while making float valve sub is a bit sub in which a float valves installed. its connection is ordered by user. the supplier put a float valve into the bore of the sub according to specification of standard API. mechanical property of material of sub conforms to the requirement of standard SY/T5200-2002 and API.
