The BDFI™/BDFC™ (Bellows Double Flow Induction/Convection) is an innovative modular hybrid design, created using the inboard design of a BQFD™ and the outboard design of a DMSF™.
Advantages of Metal Bellows Seals
The major advantage of using a metal bellows seal is the removal of a semi-dynamic sliding elastomer from a conventional pusher type mechanical seal. This removes the potential for mechanical seal hang-up or shaft/sleeve fretting.
With 50% more bellows than the industry standard (12 instead of 8) there is less stress on each convolution in the bellows stack which helps increase seal life. AESSEAL® standard bellows material, Alloy 276, has superior mechanical and corrosion resistance properties than other industry standard bellows materials such as 300 series Stainless Steel or Alloy 20. The hydraulically balanced bellows unit is available in a variety of different material options with either elastomer or graphite packing sealing rings.
BDTP
Bellows Double Seal
Bellows Double Tandem Pumping seal is a highly-innovative hybrid design. The seal's directed barrier fluid flow path achieves optimum heat removal at both sets of seal faces.
BQFD
Bellows Single Cartridge Seal
The BQFD™ (Bellows Quench Flush Drain) range of single cartridge mechanical seals uses many of the same modular parts as a BSIV™
BSAI - BSAIG
Bellows Component Seals
The BSAI™ range is available in a wide range of seal face and elastomer combinations, together with self-aligning, DIN, CURC™, T, L shaped or boot mounted stationaries.
BSFG
Bellows Single Full Graphite Cartridge Seal
This seal features graphite rings at every primary sealing surface, eliminating the need for elastomers.
BSIV
Single Bellows
The BSIV™ range of single cartridge mechanical seals has been designed as a value-for-money, high-performance sealing solution for general applications.
