Bellofram Elastomers brings together Bellofram Diaphragm, which invented the original rolling diaphragm in 1950, and Bellofram Silicones under one U.S. manufacturing operation. From Newell, West Virginia, it develops custom elastomer sealing solutions for industrial customers, with particular expertise in pressure-responsive diaphragms and closed-cell silicone sponge.
ISO 9001:2015
AS9100D
NSF/ANSI 51
UL 94 V-0
UL 94 HB
Boeing BMS 1-23
BMS 1-60
AMS 3323
FDA Approved Ingredients
ASTM Specifications
SAE Specifications
MIL-STD
RoHS Compliant
ANSI Accreditation
CSA Certification
ATEX Certification
Canadian Registration Number (CRN)
Registration
UL Listed
CE Certification
American Gas Association (AGA)
FDA
Quality certification
CSA
Quality certification
UL
Quality certification
CE
Quality certification
AGA
Quality certification
Marsh Bellofram Group of CompaniesMarsh Bellofram is a Newell, West Virginia manufacturing group whose roots reach back to 1865 and whose modern identity took shape when Marsh and Bellofram became one company in 1995. Its 11 divisions serve industrial customers worldwide, with a particular heritage in precision instrumentation and rolling diaphragms. The group operates from a 215,000-square-foot U.S. headquarters and maintains ISO 9001:2015 certification, while Bellofram Elastomers also holds AS9100D certification.NEWELL, WV
Corry Rubber CorporationSince 1961, Corry Rubber Corporation has grown from a four-person Pennsylvania shop into a 142,000-square-foot manufacturer of custom precision elastomers and elastomeric composites. Its technical team develops, prototypes, tests and produces parts ranging from tiny seals to 70-pound bonded components, with in-house compounding and laboratory work helping solve demanding designs before production. Corry Rubber remains known for its long-running automotive supply relationships and rubber elbows, first shipped in the company’s opening year.CORRY, PA
Seal Master CorporationFounded in 1974 by former B.F. Goodrich rubber-industry engineer Edward J. Bittle, Seal Master Corporation in Kent, Ohio, designs and manufactures custom fabric-reinforced inflatable seals and bags for demanding applications. Its fully molded, American-made products are engineered with customers for mission-critical environments, and the company says it has created more than 8,500 custom rubber products over nearly five decades. Every product is inspected at least twice and undergoes mandatory underwater leak testing before shipment.KENT, OH
Columbus GasketFounded in 1975 as Columbus Gasket and Supply, Columbus Gasket manufactures custom gaskets, seals and molded parts for industrial and manufacturing customers across the Midwest and North America. Its specialty shop combines more than 80 years of team experience with hand-cut work for unusual parts, while modern cutting and forming equipment supports both small custom jobs and large production runs. Since its 2023 acquisition by Cleveland-area Essential Sealing Products, the company has continued expanding its materials and customization options.COLUMBUS, OH