Click image to enlarge
| Item | Description |
|---|---|
| 1 | Seal ring |
| 2 | Spring |
| 3 | Chamber |
| 4 | Lantern |
| 5 | Housing |
| 6 | End-ring |
| 7 | Housing |
| 8 | O-ring |
| 9 | O-ring |
| 10 | Screw |
| 11 | Housing |
Espey WKA1200
Features
The proven carbon floating ring seal - Optimized to meet the highest standards
- Available as modular Cartridge-Seal
- Flexible layout due to operating parameters
- Weight optimized
- Minimal vibrating mass
- High operational realiability
Advantages
- Plug & Run
- Long-term operation time
- More compact design for tight installation spaces
- Durable ring design with a robust anti-rotation device
- Contactless, low-wear technology ensures maximum operational reliability
Operating range
Shaft diameter:
d = 20 ... 200 mm (0.79" … 7.87")
Operating pressure:
p = vacuum ... 250 bar (3.626 PSI) abs.
Operating temperature*:
t = -120 ... +225 °C (-184 °F … +437 °F)
Sliding velocity: vg = max. 240 m/s (787 ft/s)
Shaft requirements:
Recommended surface roughness: Rz4
Recommended wear guard: >58 HRC
* Higher operating temperatures possible on request
Materials
Seal ring: Carbon with titanium bandage
Chamber and housing parts: 1.4021, 1.4571, Hastelloy®, Titan, Inconel®, others
Secondardy seal (elastomer): Fluorocarbon rubber (Viton®), Perfluorocarbon rubber (FFKM), special PTFE seals on request
Secondary seal (flat gasket): Statotherm®-HT/HD, Burasil
Standards and approvals
- FDA
Recommended applications
- Integral-gear compressors (one or multi-stage)
- Turboexpanders
- Turbines
- CCUS
- LNG
- Hydrogen
- Energy-storage
- Oil and gas industry
- Refining technology
- Chemical industry
- Petrochemical industry
- Pulp- and paper industry
- Metal production and processing
- Power plant technology
- Gases
Notes
Notes: General technical features of carbon floating ring seals – compact, efficient, and reliable Our carbon floating ring seals offer a high-performance solution for demanding sealing requirements in machines and systems. The most important advantages at a glance:
- Compact design: Short axial and radial dimensions – ideal for use in small installation spaces.
- Minimal leakage: The very small operating gap ensures extremely low leakage and increases efficiency.
- Dry running: No need for additional lubrication – low maintenance and reliable operation.
- Adaptable: The sealing rings follow radial shaft deflections and ensure reliable sealing even under dynamic operating conditions.
- Contact-free running: The sealing rings run without contact, which means there is no additional friction – this saves energy and protects the machine.
Product variants
WKA1200-Cartridge: Plug & Run
In addition to our standard version, our Cartridge variant offers the following advantages:
- First to combine: the shaft sleeve, seal, and housing components
- Fully balanced, ready-to-install unit
- Improved handling thanks to integrated components
- Simplified installation
- Easier maintenance
- Minimizes the risk of component damage
- Coal-Floating-Ring- Service-Concept:
Simply select the scope you need - Available in WKA1200 standard dimensions and also customizable
WKA1200: The Espey standard version
- The modular chamber design allows for even more customer-specific adaptations
- More compact design for tight installation spaces
- Durable ring design with a robust anti-rotation device
- Bilateral relief of the sealing ring in the chamber for short-term backpressure operation
- Axially spring-loaded sealing ring – no contact with the shaft due to its own weight
- Contactless, low-wear technology ensures maximum operational reliability
