Espey WD200/500

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Espey WD200/500

Espey WD200/500
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Item Description
1 Flat seal
2 Housing, 2-piece
3a Seal ring WD 200
3b Seal ring WD 500
4a Tension spring WD 200
4b Tension spring WD 500
5a Detent WD 200
5b Detent WD 500

Espey WD200/500

Features

  • 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

Advantages

  • Easy installation by split housing design (shaft removal not required)
  • Long-term operation time
  • Maintainability
  • Segmented seal rings for easy replacement

Operating range

Shaft diameter:
d = 45 ... 340 mm (1.77" … 13.89")
Operating pressure: p = vacuum ... 3 bar (44 PSI) abs. (depends on peripheral velocity)
Operating temperature: t = -120 °C ... +500 °C (-184 °F … +932 °F) for carbon,
-120 °C ... +150 °C (-184 °F … +302 °F) for PTFE compound
Sliding velocity:
vg = max. 40 m/s (131 ft/s)
Radial play: ±2.5 … 5.0 mm (±0.1" … 0.2")
Axial movement: theoretically unlimited
Recommended wear guard: >58 HRC

Materials

Seal ring: Carbon, PTFE compound
Housing: 1.4021, 1.4571, Hastelloy®, Titanium, Inconel®, others
Tension spring / detent: 1.4571, Hastelloy®, Titanium, Inconel®

Standards and approvals

  • FDA
  • Compliant to TA Luft (German Clean Air Act)*
(*) Carbon floating ring seals are not specifically mentioned in the TA Luft but may be a solution in certain applications. Their use must be verified with the approval authorities.


Product variants

Espey WD200/500-WD1S1
with barrier gas port. The arrangement guarantees a focused barrier gas flow to the process side and keeps gases, solids and mists off the sealing area. In addition the leakage to the outside is reduced.
Espey WD200/500-WD1S2
with barrier gas port. The arrangement guarantees a focused barrier gas flow to the process side and keeps gases, solids and mists off the sealing area. In addition the leakage to the outside is reduced.
Espey WD200/500-WD1S3
with barrier gas port. The arrangement guarantees a focused barrier gas flow to the process side and keeps gases, solids and mists off the sealing area. In addition the leakage to the outside is reduced.
Espey WD 200/500-WD1S2A1
with barrier gas port and recirculation. The arrangement guarantees a focused barrier gas flow to the process side and keeps gases, solids and mists off the sealing area. In addition the leakage to the outside is reduced and residual gases and condensates will be purged.

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Espey WD100

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  • Split housing design
  • Multi-part seal rings, radially cut
  • Very small operation gap – low leakage
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  • No sealing components mounted on the shaft and hence no additional shaft vibrations
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Espey WD200

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

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The Eagleburgmann Group

Sealing technology for plants and machines

EagleBurgmann is one of the worldwide leading providers of industrial sealing technology. Mechanical seals, seal supply systems, magnetic couplings, carbon floating ring seals, expansion joints, gaskets and packings as well as comprehensive services are used wherever reliability and safety are needed.

Mechanical seals and more

Sealing technology by EagleBurgmann is used worldwide in oil and gas industries, refineries, the petrochemical, chemical, and pharmaceutical industries, food processing, energy, water, mining, paper, aerospace, and other industries. Close to 5,800 employees provide their ideas, solutions, and commitment so that customers can rely on our sealing technology.

What makes us stand out is our excellent quality, great innovative capacity, and an extensive product portfolio for nearly all industrial processes and fields of application. Our product portfolio includes everything from mechanical seals and seal supply systems to magnetic couplings, carbon floating ring seals, expansion joints, and gaskets and packings as well as comprehensive services. Since we are part of the German Freudenberg and Japanese EKK group, we have all the necessary resources for a firmly based reliable partnership.

EagleBurgmann WORLDWIDE