Description
FLUITEN Standard Mechanical Single Seals TSHS – Stationary high-temperature metal bellows seal, with floating auxiliary bush: 1CW-FL; Cat. 2; Type C.
Key Technical Specifications:
| DIAMETER | SPEED | PRESSURE | TEMPERATURE |
|---|---|---|---|
| 20-110 (mm) | ≤ 23 (m/sec) | 0-40* (bar g) | -80 – 400 (& deg;C) |
Why Choose FLUITEN TSHS?
The TSHS is a balanced, single- seal with a stationary metal bellows, specifically engineered for high-temperature and crystallizing fluids that cannot be flushed externally. Its design eliminates spring and O‑ring clogging, tolerates both axial and radial shaft movement, and includes a floating graphite containment bush to manage leakage in demanding conditions.
Key Technical Specifications
Seal Type: Balanced single with stationary metal bellows, API 682 Cat. 2–3
Stationary Bellows: Constructed from AISI 316 with Inconel, integrated into stationary ring
Seal Faces:
Stationary face: Graphite-antimony (Z12), SiC (U32), or tungsten carbide (K22) insert
Rotary ring: SiC (U41/U31) or tungsten carbide (K21) for durability in abrasive, high-temperature fluids
Secondary Gaskets: Static Graphoil gaskets on rotary ring, stationary ring, sleeve, and flange for thermal and chemical resistance
Containment Bush: Floating graphite bush (Z31) to capture physiological leakage
Cooling System: Flanged labyrinth and quench connections support steam or cooling fluid circulation to manage temperature and avoid crystallization
Drive Mechanism: Bellows eliminate clogging-prone springs and elastomer O-rings, withstanding shaft movement and extending service life
Flange & Sleeve: Slotted flange and shaft sleeve configured to pump specifications, simplifying installation
Typical Applications
Pumps handling high-temperature (>260 °C) fluids that crystallize or solidify upon contact with air
Systems where external flushing is not feasible, requiring internal cooling/quench features
Environments with shaft misalignment or thermal expansion, benefiting from bellows flexibility
Industrial setups using API 610 horizontal or vertical pumps in chemical, petrochemical, or thermal services
Additional Features
Stationary metal bellows eliminates clogging concerns and enables high-temperature resilience
Graphite containment bush manages leakage while supporting mechanical tolerance
Integrated quench labyrinth circulates steam/cooling fluid to prevent crystallization at the seal face
Slotted flange and custom sleeve improve installation accuracy and retrofit flexibility
Balanced design and high-quality materials ensure durability under thermal and mechanical stress
