Espey WKA1200

Espey WKA1200
Item Description
1 Seal ring
2 Seal ring
3 Chamber
4 Lantern
5 Barriers gas chamber
6 Chamber
7 End ring
8 Pressure ring
9 O-Ring
10 Housing
11 Housing
12 Lid


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

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: The Espey standard version

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
WKA1200-Cartridge: Plug & Run

WKA1200-Cartridge: Plug & Run

  • 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

Similar products

Espey Magna500+ the large seal for diameters from 500 mm

  • Split housing design
  • Segmented and self-adjusting seal rings
  • Virtually maintenance- and wearfree
  • Dry-running
  • Suitable for horizontal and vertical use

Espey WD200

  • Split housing design
  • Multi-part seal rings, radially cut
  • Very small operation gap - low leakage
  • Dry running
  • Self-adjusting seal rings
  • Seal rings bear radial shaft movements
  • Compensates axial shaft movements
  • No sealing components mounted on the shaft and hence no additional shaft vibrations
  • Seal rings running contact-free - sliding faces and machine consume no additional power

Espey WD200/500

  • Multi-part seal rings, radially cut on process side, overlapped mortised with gas tight joints on atmosphere side (adjusting)
  • Split housing design
  • Lowest possible operation gap - lowest leakage
  • Dry running
  • Self-adjusting seal rings
  • Seal rings bear radial shaft movements
  • Compensates axial shaft movements
  • Short axial installation length
  • No sealing components mounted on the shaft and hence no additional shaft vibrations
Contact

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