From its Gibsonia, Pennsylvania base, Independence Seal Company manufactures custom metal-cased rotary seals for machinery and equipment. The USA-based manufacturer is particularly set up for prototypes, obsolete-seal replacements, and small batches, with no tooling charges or minimum quantities and typical shipment in five to seven days. Its mechanical face seal work is performed under ISO 9001 certification.
ISO 9001
Sealing Specialists and Service CompanyFounded in 1976 by Tony Urso, Pittsburgh-area Sealing Specialists and Service Company has grown from a distributorship into a 25-employee manufacturing, repair and distribution center for industrial seals. The Glenshaw company produces custom seals and gaskets, distributes sealing products across the United States and Canada, and repairs pumps and hydraulic cylinders in-house. Its ISO 9001:2015 certification and planned 22,000-square-foot expansion reflect a business entering its fifth decade with the same focus on making seal sourcing faster and more practical for customers.GLENSHAW, PA
Stein Seal Industrial DivisionFounded in 1955, Stein Seal Industrial Division designs and manufactures custom mechanical seals and precision components for demanding rotating equipment, with a Pennsylvania engineering and production operation serving commercial and industrial customers. As the industrial arm of Stein Seal Industries, it brings seven decades of seal-design experience to applications ranging from power generation and chemical processing to pharmaceutical production. Its work is backed by reverse-engineering and repair services, more than 25 dynamic test rigs, and ISO 9001:2015 and AS9100D certification.TELFORD, PA
Orion Engineered SealsFrom its Cincinnati facility, Orion Engineered Seals develops and manufactures patented, non-contacting bearing protection and sealing technology for rotating equipment. Its engineers also take on difficult application problems, using in-house testing to design solutions that keep contaminants out and lubrication in. The company routinely ships standard and most custom orders within 24 hours, and its manufacturing process is certified to ISO 9001 standards.CINCINNATI, OH
AD Piston Ring, LLCSince 1921, Cleveland-based AD Piston Ring, LLC has made custom piston rings and seals for industrial equipment, including hydraulic and pneumatic systems. Founded in New Haven and relocated to Cleveland in 1925, the company now builds cast iron rings up to 30 inches alongside bronze and stainless steel designs, with U.S. manufacturing and rush service available for urgent orders. Its Shurseal joint configuration, developed in-house for bidirectional sealing with minimal leakage, is a particular signature.CLEVELAND, OH