Espey WKA802HD
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Espey WKA802HD

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Espey WKA802HD
Espey WKA802HD
Request product
Technical drawing of Espey WKA802HD

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Item Description Variablefor width
1.1 Seal ring
1.3 Pressure spring
2 Chamber A
2.1 Chamberwith O-Ring A
3 Barrier gas chamber B
3.1 Barrier gas chamberwith O-Rings B
4 Lantern chamber C
4.1 Lantern chamberwith O-Ring C
5 Lantern thin E
5.1 Lantern wide F
6 End ring G
7 Flat seal H
8* Housing
9* Lid
10* O-Ring housing
11* Flat seal housing

* On request

Espey WKA802HD

PDF data sheet

Features

  • Chamber seal (modular design - can be combined in any order), optional with housing and lid
  • Very small operation gap - low leakage
  • Dry running
  • 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
  • One-piece seal ring with titanium bandage
  • Balanced seal ring inside chamber
  • Seal ring axially spring-loaded – no swinging up at pressure-less machine operation

Advantages

  • High reliability
  • Long-term operation time
  • Maintainability

Operating range

Shaft diameter:
d = 20 ... 200 mm (0.79" … 7.87")
Operating pressure:
p = vacuum ... 140 bar (2031 PSI) abs.
Operating temperature:
t = -120 °C ... +225 °C (-184 °F … +437 °F)
Sliding velocity:
vg = max. 240 m/s (787 ft/s)
Radial play: ±1.0 mm (±0.04")
Axial movement: theoretically unlimited
Recommended wear guard: >58 HRC

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®), Nitrile-butadiene-rubber (Perbunan®), Perfluorocarbon rubber (Kalrez®)
Secondary seal (flat gasket): Statotherm®-HT/HD, KSiL C 4400

Standards and approvals

  • FDA

Recommended applications

  • Gases
  • Fumes and exhaust, solids containing, flammable (Atex), acid containing and toxic gases
  • (Solids containing) steams / liquid mist
  • Oil mist / penetrating oil
  • Water
  • Oil and gas industry
  • Refining technology
  • Chemical industry
  • Petrochemical industry
  • Pulp and paper industry
  • Metal production and processing
  • Power plant technology
  • CO2 transportation and storage
  • Integral-gear compressors (one or multi-stage)
  • Screw and chiller compressors
  • Steam turbines
  • Air regulating devices

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