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

New design and enhanced characteristics of WKA1100HP
  • Chamber seal (modular design - can be combined in any order)
  • New anti- rotation lock device
  • Light ring design with unchanged robustness
  • Very small operation gap - low leakage
  • Axial and radial limited space requirements
  • Dry running
  • Seal rings bear radial shaft movements
  • Seal rings running contact-free - sliding faces and machine consume no additional power
  • One-piece seal ring with titanium bandage
  • Two side balanced seal ring inside chamber for short-term backpressure operation
  • Seal ring axially spring-loaded – no contact to the shaft due to its own weight

Advantages

  • High reliability
  • Long-term operation time
  • Maintainability
  • Wartungsfreundlich

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

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 WD100

  • 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

  • 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
Contact

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