Description
FLUITEN Standard Mechanical Single Seals TR8S – Metal bellows seal with fixed or floating auxiliary bush: 1CW-FX; 1CW-FL; Cat. 1; Type B.
Key Technical Specifications:
| DIAMETER | SPEED | PRESSURE PROCESS | TEMPERATURE |
|---|---|---|---|
| 20-110 (mm) | 0-23 (m/sec) | 0-20 (bar g) | -40 – 176 (°C) |
Why Choose FLUITEN TR8S?
The TR8S is a balanced, single- metal bellows seal, purpose-built for non-toxic, non-polluting liquids that crystallize or solidify in contact with the atmosphere. It eliminates spring and O-ring clogging and accommodates both axial and radial shaft movements through its robust bellows design.
Key Technical Specifications
Seal Type: Balanced single , rotating metal bellows seal
Compliance: API 682 4th Edition, Category I, Type B
Stationary Ring Materials: Reaction‑bonded SiC (U41), sintered SiC (U31), or tungsten carbide (K21)
Rotary Bellows & Ring: Bellows made of AISI 316L + Hastelloy; inserted rotary face options: graphite‑antimony (Z12), silicon carbide (U32), or tungsten carbide (K22)
Secondary Seals: Static gaskets in FKM, EPDM, or FFKM for rotary ring, stationary ring, sleeve, and flange
Containment Bushing: Fixed graphite bush (Z3) to manage physiological leakage
Drive Mechanism: Rotating bellows eliminates spring clogging and maintains seal integrity under shaft movement
Flange & Sleeve: Slotted flange and shaft sleeve are customizable to pump requirements
Flush Capability: Can be fitted with connections for flushing, washing, or drainage
Typical Applications
Centrifugal pumps handling fluids that crystallize or solidify when exposed to air
Systems where external flushing isn’t viable and spring clogging must be avoided
Installations exposed to shaft misalignment or radial/axial movement
ANSI (B73.1/B72.2) horizontal and vertical pump environments
Additional Features
Bellows-actuated flexibility compensates for shaft movements and prevents spring jamming
Static seal arrangement enhances reliability in crystallizing fluid services
Compact, single-cartridge format simplifies installation and retrofit
Slotted flange and sleeve design ensure compatible fit on various pump types
Durable construction resists vibration and mechanical stresses
The FLUITEN TR8S delivers reliable sealing for crystallizing or undefined liquids, eliminating clogging risk with its metal bellows design. This compact, balanced seal combines dry operation capacity, movement accommodation, and easy customization—offering exceptional dependability in challenging process environments.
