Designed, Engineered & Manufactured in the USA

Flex-A-Seal is a world leader in welded bellows engineering and globally-renowned manufacturer of welded metal bellows seals and devices. We offer a complete line of welded metal bellows seals for both standard and high temperature applications. Flex-A-Seal also specializes in cryogenic bellows seals and specially engineered bellow devices for Vacuums, applications and other industrial equipment. Our standard welded bellows seals can operate in conditions up to 400° F, while our high temperature bellows seals can support temperatures of up to 800° F. Our welded metal bellows can cover a wide spectrum of applications by easily converting metallurgy from AM350 bellows to Hastelloy® C276 bellows in lower temperature service, or from heat treated AM350 bellows to heat treated Inconel 718 bellows for high temperature applications. You can review the complete product brochures below by clicking on the Style 40/42/45 button below for low temperature welded bellows applications, and the Style 60/61/61/64 button below for high temperature welded bellows applications.

  • Flex-A-Seal Style 40 is comparable to John Crane Sealol Style 676
  • Flex-A-Seal Style 42 is comparable to John Crane Sealol Style 680
  • Flex-A-Seal Style 60 is comparable to John Crane Sealol Style 609
  • Flex-A-Seal Style 64 is comparable to John Crane Sealol Style 604

For all cryogenic, compressor and centrifuge sealing options as well as other engineered bellows inquires, please contact our applications team at the address below. In addition to bellows component seals, our welded metal bellows devices are also utilized in many of our standard and special cartridge seal designs.

We appreciate the opportunity to support you for all your welded metal bellows requirements. All Flex-A-Seal welded bellows seals and devices are 100% designed and manufactured in the USA.

40/42/45 (LOW TEMP)

40/42/45 (LOW TEMP)

Low Temperature Welded Metal Bellows (Below 400F)

Learn More 73p & 75p Learn More

View more
60/61/62/64 (HIGH TEMP)

60/61/62/64 (HIGH TEMP)

Superior Performance Welded Metal Bellows Component Designs for High Temperature

Learn More 76 Learn More

View more
Bellows Tip Sheet

Bellows Tip Sheet

Learn More 78 Learn More

View more

Questions? Ask Us now

View more