| 摘要 |
PURPOSE:To obtain the sufficient engaging force of an orifice fitting against an inner cylinder fitting by making the inner diameter of the orifice fitting as same as the outer diameter of the inner cylinder fitting or a little larger than that to set the orifice fitting outside the inner cylinder fitting, and thereafter, enlarging the diameter of the inner cylinder fitting to fix the orifice fitting. CONSTITUTION:The inner diameter (r) of an orifice fitting 3 is made as same as the outer diameter R of an inner cylinder fitting 1 or a little larger than that to set the orifice fitting 3 outside the inner cylinder fitting 1, and the diameter of the inner cylinder fitting 1 is enlarged from the inside. The inner cylinder fitting 1 is thereby adhered to the orifice fitting 3 from inside, and the orifice fitting 3 is fixed securely. |
