Espey WKA700

Espey WKA700 For a larger view, please mouseover the image.
For a larger view, please mouseover the image.
Item Description Variable
for width
1.1 Seal ring
1.3 Pressure spring
2 Chamber A
2.1 Chamber with O-Ring A
3 Barrier gas chamber B
3.1 Barrier gas chamber with O-Rings B
4 Lantern chamber C
4.1 Lantern chamber with O-Ring C
5.1 Lantern breit F
6 End ring G
7 Flat seal H
8* 8* Housing
9* 9* Lid
10* 10* O-Ring Housing

* On request
For a larger view, please mouseover the image.
  • Chamber seal (modular design - can be combined in any order), optinal with housing and lid for screw compressors with one-part and horizontally split housing
  • 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
  • Both side balanced seal ring inside chamber for short-term backpressure operation
  • Seal ring axially spring-loaded – no swinging up at pressure-less machine operation
  • High reliability
  • Long-term operation time
  • Maintainability
Shaft diameter:
d = 50 ... 340 mm (1.79" ... 13.39")
Operating pressure:
p = vacuum ... 65 bar (942.75 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
Seal ring: Carbon with titanium bandage
Chamber and housing parts: 1.4021, 1.4571, 1.4313
Hastelloy®, Titanium, Inconel®, others
Secondardy seal (elastomer): Fluorocarbon rubber
(Viton®), Nitrile-butadiene-rubber (Perbunan®),
Perfluorocarbon rubber (Kalrez®)
Secondary seal (gasket): Statotherm-HT/HD, KSiL C 4400
  • Oil and gas industry
  • Refining technology
  • Chemical industry
  • Petrochemical industry
  • Pulp and paper industry
  • Metal production and processing
  • Power plant technology
  • Gases
  • Fumes and exhaust, solids containing, acid containing and toxic gases
  • (Solids containing) steams/liquid mist
  • Oil mist/penetrating oil
  • Water
  • Screw compressors