Reducing/Expanding

FEATURE	LIMITS	TOL. (IN.)
Reduced length	---	± .010
Transition angle	11' to 15'
Overall length	---	± .010

Expansion or reduction of the tube diameter is frequently employed to maintain a good balance between strength and length of a component.

Transitions are smooth and free of the interference that results from the use of adapter and coupling devices. Generally, the wall thickness of the small diameter section will be slightly heavier than the larger diameter.

To avoid added operations, the ratio of the Small O.D. / Large O.D. should be .7 or greater. However, by using multiple operations, the ratio can be exceeded.