Espey WDKS-Eco

Espey WDKS-Eco For a larger view, please mouseover the image.
For a larger view, please mouseover the image.
Item Description
1 Flat seal
2 Housing, 2-piece
3 Seal ring
4 Tension spring
5 Detent
  • Multi-part seal rings, radially cut
  • Split housing design
  • 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
  • Easy installation by split housing design (shaft removal not required)
  • Long-term operation time
  • Maintainability
  • Segmented seal rings for easy replacement
Shaft diameter:
d = 45 ... 160 mm (1.77" … 6.3")
Operating pressure:
p = vacuum ... 1.5 bar (22 PSI) abs.
Operating temperature: t = -120 °C ... +500 °C (-184 °F … +932 °F) for carbon,
max. 225 °C (437 °F) for PTFE compound, max. 300 °C (572 °F) with grease
Sliding velocity: vg = max. 150 m/s (492 ft/s) for carbon, max. 40 m/s (131 ft/s) for PTFE compound
Radial play: ±2.5 … 5.0 mm (±0.1" … 0.2")
Axial movement: theoretically unlimited
Recommended wear guard: >300 HB (low pressure)
Seal ring: Carbon, PTFE compound
Housing: 1.4021, 1.4571
Tension spring / detent: 1.4571
  • Chemical industry
  • Metal production and processing
  • Pulp and paper industry
  • Food processing industry
  • Power plant technology
  • (Solids containing) gases
  • (Solids containing) steams / liquid mist
  • Oil mist / penetrating oil
  • Water
  • Small and medium-sized fans / blowers
  • Bearing seals (gear box, motors)
  • Mixers, agitators, mills, dryers