Stein Seal Designs and Builds Variable Attitude Aerospace Seal Test Rig

Written by George Schauer

August 17, 2021

Stein Seal® Company not only designs and manufactures precision mechanical seals for state-of-the-art applications, but we also offer testing of these advanced seals in our custom designed test rigs.

In Stein Seals® engineering test lab we can accurately simulate the extreme limits of operating conditions, which allows us to precisely predict and verify performance under the most rigorous operating conditions.


We are pleased to announce that we started operation our Variable Attitude Aerospace Seal Test Rig.

This newly built rig has the ability to change the attitude of the test shaft from 0° (horizontal) to 90° (Vertical) dynamically while the test is running.

This rig lets Stein test various runner and seal designs to see how attitude of the sump effects oil leakage through the seal. This rig can also test a flooded sump condition.

The rig has fully automatic data collection and control via National Instruments hardware and software.


Features and Capabilities;

Rotation:                            20,000 rpm

Seal Air:                              150 psi, 850°F, 120 SCFM

Runner/Seal Oil:               100 psi, 250°F,  5 gpm

Shaft Attitude:                  0-90° in 120 seconds

Dynamic monitoring of Seal material temperature with embedded fine-wire thermocouples.


For more information, please email or call us at 215-256-0201


Stein Seal Mechanical Seals, Carbon Seals, Carbon Face Seals, Bushing Seals, and much more….



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