Gorman-Rupp Classic T vs Super T Comparison

WHY YOU SHOULDN'T REPLACE A GORMAN-RUPP CLASSIC T WITH ANOTHER CLASSIC T

For many years, the Gorman-Rupp T Series was the go-to self-priming pump. It was so popular, in fact, that copycat manufacturers began manufacturing their own versions of the T Series.

They say, "necessity is the mother of all invention", and in order to survive in the pump market, Gorman-Rupp took their Classic T Series® design and made major improvements, eventually bringing the Super T Series® to market and with a 5-year warranty!

So what's the big deal? Here's why you shouldn't replace your Gorman-Rupp Classic T Series® with another one, and instead, take a hard look at the upgraded Super T Series®.

Impeller to Wear Plate Clearance Adjustment

In the Classic T Series® the adjustments take place through insertion of shims between rotating assembly and volute casing.
The Super T Series® has an external shimless and indexable adjustment through a unique locking collar design.

Coverplate

The Classic T Series® has a two point attachment with single O-ring at the outer bore.
The Super T Series® coverplate has a four point attachment with additional O-ring between vacuum and pressure chambers.

Coverplate Removal

The Classic T Series® has a cover that must be pried from the volute with pry bars.
The Super T Series® has an easier process. A grip handle has been added as well as pusher bolt holes to make removal easier.

Rotating Assembly Removal

To remove the rotating assembly with the Classic T Series®, pry bars are required.
In the Super T Series®, removing the rotating assembly is eased by pusher bolt capabilities.
The Super T Series® rotating assemblies are interchangeable with Classic T Series® rotating assemblies.

Atmospheric Isolation

With the Classic T Series®, a single lip seal with a vented pipe plug is included.
The Super T Series® Double lip seal with atmospheric barrier allows for external monitoring.

Seal Oil Monitoring

In the Classic T® Series, the seal chamber vent plug must be removed to monitor seal oil.
In contrast, The Super T Series® has a clear sight gauge.

Volute Casing Heater

In the Classic T Series® a heater probe can be inserted into an optional service tee in pump drain port.
In the Super T Series®, a discreet heater port permits heater insertion into discharge side of volute.