Espey WKA300

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Espey WKA300

Espey WKA300
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Item Description
1 Seal ring
2 Tension spring
3 Chamber
4 End ring
4.1 Welding ring (as alternative)
5 Flat seal
6 Grease chamber
6.1 Barrier gas, suction chamber
7 Intermediate chamber

Espey WKA300

Features

  • Multi-part seal rings, radially cut
  • Chamber seal (modular design – can be combined in any order)
  • 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

Advantages

  • Segmented seal rings for easy replacement
  • High reliability
  • Log-term operation time
  • Maintainability

Operating range

Shaft diameter:
d = 20 ... 340 mm (0.79" … 13.39")
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: ±2.0 mm (±0.08")
Axial movement: theoretically unlimited
Recommended wear guard: >300 HB

Materials

Seal ring: carbon, PTFE compound
Chamber parts: 1.4571, Hastelloy®, Titanium, Inconel®, others
Tension spring: 1.4571, Hastelloy®, Titanium, Inconel®

Standards and approvals

  • FDA


Product variants

Espey WKA301/4
(up to 225 °C (437 °F)) or
Espey WKA302/4
(up to 500 °C (932 °F)) for clean media, not for solids containing gases
Espey WKA303/4
(up to 225 °C (437 °F)) or
Espey WKA304/4
(up to 500 °C (932 °F)) with grease barrier for clean media, not for solids containing gases
Espey WKA303.1/4
(up to 225 °C (437 °F)) or
Espey WKA304.1/4
(up to 500 °C (932 °F)) with grease barrier for clean media, not for solids containing gases
Espey WKA303.2/4
(up to 225 °C (437 °F)) or
Espey WKA304.2/4
(up to 500 °C (932 °F)) with barrier gas port for toxic and solids containing media as well as Atex applications, on special request.
Espey WKA305/4
(up to 225 °C (437 °F)) or
Espey WKA306/4
(up to 500 °C (932 °F)) with grease barrier for clean media, not for solids containing gases
Espey WKA305.1/4
(up to 225 °C (437 °F)) or
Espey WKA306.1/4
(up to 500 °C (932 °F)) for clean media, not for solids containing gases
Espey WKA305.2/4
(up to 225 °C (437 °F)) or
Espey WKA306.2/4
(up to 500 °C (932 °F)) with barrier gas port for toxic and solids containing media as well as Atex applications, on special request.
Espey WKA308/4
(up to 225 °C (437 °F) or
Espey WKA309/4
(up to 500 °C (932 °F)) with grease barrier for clean media, not for solids containing gases
Espey WKA308.1/4
(up to 225 °C (437 °F)) or
Espey WKA309.1/4
(up to 500 °C (932 °F)) for clean media, not for solids containing gases
Espey WKA308.2/4
(up to 225 °C (437 °F)) or
Espey WKA309.2/4
(up to 500 °C (932 °F)) with barrier gas port for toxic and solids containing media as well as Atex applications, on special request.

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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