BT-PN

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BT-PN

BT-PN
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Item. Description
1.1 Seal face
1.2 Bellows
1.3 Collar
1.4 Drive ring
1.5 Spring
1.6 Ring
2.1 Sationary seat
2.2 Gasket

BT-PN

Features

  • Single and double seal
  • For plain shafts
  • Elastomer bellows rotating
  • Unbalanced
  • Independent of direction of rotation

Advantages

  • No torsion on bellow and spring
  • Universal application opportunities
  • Suitable design for high volume seal
  • Individual adaptation to pumps design possible
  • Customized installation length can be achieved

Operating range

Shaft diameter:
d1* = 8 … 40 mm (0.31" … 1.57")
Pressure: p1** = 12 bar (174 PSI),
vacuum … 0.5 bar (7.45 PSI)
Temperature:
t** = -20 °C … +120 °C (-4 °F … +248 °F)
Sliding velocity: vg = 10 m/s (33 ft/s)

* Dependent on medium, size and material

Materials

Seal face:
Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B),Carbon graphite, full carbon (B3),
Silicon carbide (Q1, Q6)
Seat:
Al-Oxide (V, V1), Silicon carbide (Q1, Q6, Q7)
Elastomers:
NBR (P), EPDM (E), FKM (V)
Metal parts: CrNi steel 1.4301 (F), CrNiMo steel 1.4401 (G)

Standards and approvals

  • Various material approvals e.g. WRAS, UBA, ACS, NSF, FDA available (depending on type and material combinations). Please inquire!


Product variants

BT-PNL Items and designations same as for BT-PN,
but with a smaller outer diameter (d3).

Item. Description
1.1 Seal face
2.1 Sationary seat
1.2 Bellows
1.3 Collar
1.4 Drive ring
1.5 Spring
1.6 Ring
2.2 Collar
BT-PN and PNL double seal
Items and designations same as for BT-PN. This is a dual sela in a back to back arrangement with a BT-PN or BT-PNL base. Therefore, this seal combines the advantages of the PN/PNL with the advantage of a double seal.
Individual installation dimensions and lengths can be supplied upon request.
In this configuration, the operating pressure (product side seal) must be limited to max. 2 bar (29 PSI).
For specific application or operation limits, please inquire!

Item. Description
1.1, 1.6 Seal face
2.1, 3.1 Sationary seat
1.2 Bellow
1.3 Collar
1.4 Drive ring
1.5 Spring
2.2, 3.2 Collar

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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.

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