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AS9100A is a company level certification based on a standard published by the Society of Automotive Engineers (SAE) titled “Quality Systems-Aerospace-Model for Quality Assurance in Design, Development, Production, Installation and Servicing”. This certification is for companies doing business in the aerospace industry.

Stein Seal Co. - Kulpsville, PA
Manufacturer, Custom Manufacturer
Custom manufacturer of face seals for independent use or as part of a sealing system in gas & liquid applications that require high-pressures & high shaft speeds, with moderate axial shaft movement. Common applications include gearboxes, aircraft engine main shafts, compressors, pumps & propulsion systems. Configurations include standard single ring, back-to-back, face-to-face or a tandem arrangement. Face seals manage radial shaft movements while maintaining low leakage rates, leakage rates remain constant over the life of the seal ensuring consistent sealing, pressure balanced for higher delta pressure capability & decreased heat generation for long seal life, designed to tolerate sudden pressure reversals, such as in chemical gas applications. Face seal types are contacting (rubbing), non-contacting (film riding), hydrodynamic, hydrostatic. Face seal characteristics are shaft rotation speeds up to 152.4 meter per second (500 ft. per second), temperatures range up to 538 degrees C (1000 degrees F), pressure ranges up to 1206 KPa (175 psid), shaft diameters range from 12.7 millimeters (0.500 in.) with the maximum determined by the application requirements.
Brand Names: Alfa Laval, Bissinger & Stein, Stein Seal, Torresdale
                                                                                                                                                                                                       
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