The Stein Custom Seal Advantage

Since 1955, Stein Seal Industries has been a leading provider of custom-designed seals and precision components for use in a wide variety of industrial applications.

Stein Seal’s expertise lies in the design, manufacture, and testing of seals and precision components for demanding industrial applications involving turbines, pumps, and other rotating equipment. We surpass customer expectations by setting the highest standards for design proficiency and originality. By constantly investigating new materials and processes and refining our ability to manufacture to rigorous tolerances, Stein Seal has earned its reputation as one of the industry’s most respected suppliers of custom seals and specialty machined components.

When your “off-the-shelf” sealing solution takes your product off the cliff, it is time to call in the sealing experts at Stein Seal Industrial Division. Our custom Process Industry Seals are tailored to the unique requirements of your machine using the latest in advanced sealing technology. We will often work with the OEM at the start of the machine design process to provide the best environment for an affordable seal system with minimum wear and leakage. Users can also benefit from working with us by replacing their overpriced catalog seal with one specifically designed for the work environment of their machine.

Mechanical seals are installed between an industrial agitator's rotating and stationary components or mixer to minimize leakage. These agitator seals can be built to perform under extreme conditions inherent to many industrial processes.

The American Petroleum Institute (API) specifies technical standards for industrial components used in the discovery, extraction and processing of oil and natural gas. API Standard 682 is the institute’s protocol for assessing and assuring the reliability of shaft seals for centrifugal and rotary pumps. These seals from Stein are certified to API Standard 682.

Stein’s custom-engineered barrier seals are field proven, and with over 30 years of experience, these seals are readily available to meet the stringent and demanding requirements of today’s turbomachinery industry.

For industrial applications involving the transfer of hazardous liquids or gas, it is vital to mitigate the potential for leaks during operation. Stein Seal offers expert construction of mechanical seals, including the bellows seal, designed to prevent such leakage during industrial processing.

Stein Seal provides design, testing, and manufacturing services for seals and precision components, including carbon bushing seals for high-pressure gas and liquid applications.

Stein cartridge seals are quickly installed and changed out from the pump shaft. They are expertly designed and pre-built to include gland, sleeve, and other necessary seal system components into a single assembly.

Stein Seal’s line of precision-crafted circumferential sealing devices is perfect for low-pressure applications where minimal, controlled gas leakage, high temperatures, unlimited axial shaft movement and low wear are critical. They can be used independently or as part of a sealing system. A split housing option makes it fast and easy to assemble the seal around a shaft.

Conventional dry gas seals are compression seals designed for high-pressure applications. Dry gas is injected to create a dynamic buffer within the seal. Stein makes dry gas seals for lower-pressure applications involving compressors, turbines, process equipment, gearboxes, etc.

Critical to the operation of rotating and moving parts in many industries, oil seals occupy the space between the moving and stationary components of rotating machinery, making it easier to control lubricant leakage while preventing the intrusion of dirt and other contaminants into the workings of the machine.

While seal shaft failure is the most common cause of pump failure, a pump seal that is professionally designed and installed, properly maintained, and periodically replaced can keep any pump system running leak-free indefinitely.

Split cartridge mechanical seals are an innovative solution for challenging applications involving turbines, compressors and other rotating equipment when conventional mechanical seals may not be practical.

Using state-of-the-art design tools, Stein has developed innovative face-seal technologies that prevent the damage caused by dry-running face-to-face contact. Quickly and easily installed or removed, a Stein face seal can normally be maintained or replaced without interrupting production.