箭型止回閥
Type Arrow Back Pressure Valve
FJ型箭型止回閥是鉆井過程中一種重要的放噴工具。該工具同其它結構的止回閥相比,具有強度高、過流面積大、耐高溫、耐高壓、耐鉆井液沖蝕和維修方便的特點。
FJ type Arrow pressure valve is a important tool in preventing of blowing out in driling operation.Comparting to other structural valves it posses some advantage such as high strength Big flowa area,high temperature resistant,high pressure resistant,snd easily maintenance.
Specifications | ||||
型號 | 外徑 O.D.(mm) | 連接螺紋 | 內徑 | 最大密封壓力 |
FJ229 | 229 | 7 5/8 REG | 82 | 70 、35 |
FJ203 | 203 | 6 5/8 REG | 82 | 70 、35 |
FJ178 | 178 | 5 1/2 FH | 82 | 70 、35 |
FJ168 | 168 | NC50 | 82 | 70 、35 |
FJ165 | 165 | NC50 | 82 | 70 、35 |
FJ159 | 159 | NC46 | 70 | 70 、35 |
FJ121 | 121 | NC38 | 56 | 70 、35 |
FJ105 | 105 | NC31 | 44 | 70 、35 |
FJ89 | 89 | NC26 | 33 | 70 、35 |