Concentric Reducer Design Information

Concentric reducers provide an in-line conical transition between pressurized pipes of differing diameters. A reducer may be a single standard diameter change (i.e., 6" x 4") or a multiple diameter change (i.e., 8" x 2"). The pipes do not have a "brain" and do not recognize what the outside configuration of the reducer looks like. The pipe flow is only affected by the inside diameter conical transition configuration. Hence, the inside diameter conical transition can be axially moved and externally reconfigured to provide for more econmical reducer fittings as follows. All three designs have the same ID flow shape, but the "Compact" and "Low Cost Compact" cost savings are passed onto you!

The "Traditional" reducer has three sections:
1. Large end to clamp for heat butt-fusion.
2. Conical transition section.
3. Small end to clamp for heat butt-fusion.

The "Compact" reducer has two sections:
1. Large end to hold for heat butt-fusion.
2. Small end to hold for heat butt-fusion.
Note: The same conical transition zone has been moved forward within the reducer.

The "Low Cost Compact" reducer has one section. This reducer is held on the large end and heat-fused to the large pipe. The assembly is moved to the other fusion machine jaws and the small end is heat fused to the small pipe. Note: The same conical transition zone is kept within the fitting.

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