LNF992

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LNF992

LNF992
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Item Description
1,8 Seal ring
2, 7, 9, 14, 16, 17, 24, 25 O-Ring
3, 10 Thrust ring
4, 11 Spring
5, 12 Mating ring
6, 13, 21, 27, 30 Pin
15 Seal sleeve
18 Labyrinth
19 Adapter sleeve
20, 26 Gland plate
22 Adapter
23 Retaining ring
28, 33 HSH cap screw
29 Drive collar
31 Set screw
32 Setting device


GBO Gas barrier OUT
GBI Gas barrier IN

LNF992

Features

  • API 682 Category 2 and 3, Type A, Arrangement 3 seal
  • Dual seal in face-to-back arrangement
  • Gas-lubricated
  • Balanced
  • Cartridge unit
  • Stationary multiple springs
  • Independent of direction of rotation
  • Solid seal faces

Advantages

  • Non-contacting stationary spring unit design
  • No process fluid penetration into the seal faces, no leakage to the atmospheric side
  • Appropriate to slurry fluid
  • Applicable inboard seal design for reverse and positive pressure
  • Low power consumption

Operating range

Shaft diameter: d1 = 20 ... 110 mm (0.79" ... 4.33")
Pressure: p = vacuum ... 16 bar (232 PSI)
Temperature: t = -40 °C ... +160 °C (-40 °F … +320 °F)
Sliding velocity: vg = 23 m/s (75 ft/s)

Materials

Seal rings: Silicon carbide SSiC (Q1),
High density carbon graphite
Mating rings: Silicon carbide SSiC (Q1)
Secondary seals: FKM (V)
Springs: Hastelloy® C-276 (M5)
Metal parts: CrNiMo steel 316 (G)

Standards and approvals

  • API 682 / ISO 21049
  • API 682 4th ed. Cat. 2/3 - 3NC-FB

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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