Given the keyword, this article will proceed as a —the frustration engineers and fitters experience when a flange joint fails to seal, aligns poorly, or corrodes. We will also cover the Draft Angle (a related engineering term) and proper flange Drawing techniques.
If you are planning a project, would you like to know more about or how to choose the right gasket material for your specific fluid?
1" (26/34 mm) Large Diameter Floor Flange - Black Cast Iron with Thread
You tightened bolts in a circle pattern. The flange warped like a potato chip. Leak at 6 o’clock. Solution: Use a star pattern or cross-sequence torque in 3 passes (30%, 70%, 100% of target torque). Use a calibrated torque wrench or hydraulic tensioner.