消防用开孔器常见型号尺寸

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钢管开孔及基本规格公称通径 外径O.D 开孔长度 公称通径 外径O.D 开孔尺寸 2＂×1/2＂60×21.338.14＂×2＂114×6069.92＂×3/4＂60×26.838.14＂×21/2＂114×7669.92＂×1＂60×33.538.14＂×3＂114×88.5892＂×11/4＂60×42465＂×1/2＂140×21.3512＂×11/2＂60×48465＂×3/4＂140×26.85121/2＂×1/2＂76×21.338.15＂ ×1＂140×33.55121/2＂×3/4＂76×26.838.15＂ ×11/4＂140×425121/2＂×1＂76×33.538.15＂ ×11/2＂140×485121/2＂×11/4＂76×42515＂×2＂140×6069.921/2＂×11/2＂76×48515＂×21/2＂140×7669.93＂×1/2＂88.5×21.338.15＂×3＂140×88.5893＂×3/4＂88.5×26.838.16＂×1/2＂165×21.3603＂×1＂88.5×33.538.16＂×3/4＂165×26.8603＂×11/4＂88.5×42516＂ ×1＂165×33.5603＂×11/2＂88.5×48516＂ ×11/4＂165×42603＂×2＂88.5×6063.56＂ ×11/2＂165×48604＂×1/2＂114×21.338.16＂×2＂165×6069.94＂×3/4＂114×26.838.16＂×21/2＂165×7669.94＂×1＂114×33.538.16＂×3＂165×88.5894＂×11/4＂114×42516＂×4＂165×1141144＂×11/2＂114×4851备注：丝接与凸缘开孔长度相同

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