Description
FLUITEN Standard Mechanical Single Seals TRHS – High-temperature metal bellows seal with floating auxiliary bush: 1CW-FX; 1CW-FL; Cat. 2; Type C.
Key Technical Specifications:
| DIAMETER | SPEED | PRESSURE | TEMPERATURE |
|---|---|---|---|
| 20-110 (mm) | 0-23 (m/sec) | 0-40 (bar g) | -80 – 400 (°C) |
Why Choose FLUITEN TRHS?
The TRHS is a balanced, single-seal with a rotating metal bellows, perfect for high-temperature, crystallizing fluids that cannot be flushed externally. Its bellows drive eliminates clog-prone springs and dynamic O‑rings, while accommodating both axial and radial shaft movements. Ideal for applications above 260 °C, it ensures reliable sealing in tough conditions.
Key Technical Specifications
Seal Type: Balanced single-with rotating metal bellows (API 682 Cat 2–3)
Stationary Ring Materials: Reaction-bonded silicon carbide, sintered silicon carbide, or integral tungsten carbide
Stationary Bellows: AISI 316 alloyed with Inconel
Rotating Ring Insert Options: Antimony-impregnated graphite, silicon carbide, or tungsten carbide
Secondary Seals: Static graphite (Grafoil) gaskets for rotary ring, stationary ring, sleeve, and flange
Containment Bushing: Floating graphite auxiliary bushing to manage physiological leakage
Cooling/Quench System: Flanged labyrinth directs steam or fluid quench over seal and bellows to cool and prevent crystallization
Injection System: Multipoint injection ensures uniform quench distribution
Drive Mechanism: Rotating bellows provide seal dynamics without springs , maintaining reliability under shaft movement
Flange & Sleeve: Slotted flange and custom shaft sleeve tailored to pump requirements
Typical Applications
Pumps handling high-temperature or crystallizing fluids where external flushing is unavailable
Environments requiring clog-resistant sealing and movement tolerance
API 610 horizontal or vertical pumps in chemical , petrochemical , and thermal services
Additional Features
Rotating metal bellows eliminate clogging and ensure flexibility
Grafoil secondary seals support high-temperature and chemical resilience
Floating graphite bush controls leak-off while permitting mechanical freedom
Labyrinth quench and multipoint injection prevent face crystallization
Balanced cartridge format simplifies installation and pump retrofits
