HSH-D

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HSH-D

HSH-D
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Item no. Description
1 Seal face, atmosphere side
2 Seal face, product side
4, 5, 13, 14 O-Ring
11 Seat, product side
12 Seat, atmosphere side

HSH-D

Features

  • For top entry drives
  • Double seal
  • Balanced
  • Independent of direction of rotation
  • Multiple springs rotating
  • Liquid-lubricated
  • Cartridge unit

Advantages

  • Ready-to-fit and factory-tested unit
  • With or without bearing available
  • Patented hydrodynamic grooves
  • Designed for high pressure range
  • Connection dimensions to customers' requirements
  • ATEX certification on request

Operating range

Shaft diameter:
d1 = 20 ... 500 mm (0.79" ... 19.69")
Pressure:
p1 = vacuum ... 250 bar (... 3,625 PSI)*,
p3 = p1 +10 %
Temperature:
t1 = -40 °C... +200 (350**) °C
(-40 °F ... +392 (662**) °F)
Sliding velocity:
vg = 0 ... 5 m/s (0 ... 16 ft/s)

* Depending on size, from 100 ... 150 bar (1,450 ... 2,175 PSI) executed as tandem seal (pressure reduction in 2 stages).
** with cooling flange

! It should be noted that the extremal values of each operating parameter cannot be applied at the same time because of their interaction.

Materials

Seal faces: Carbon graphite
Seats: Silicon carbide, FDA conform
Secondary seals and metallic parts acc. to application and customers' requirement.

Standards and approvals

  • FDA

Notes

Options:
  • Cooling resp. heating flange
  • Leakage drain
  • Flush
  • Polymerization barrier

Recommended piping plans

Open circuit
e.g. EagleBurgmann SPA, EagleBurgmann SPN

Product links:
EagleBurgmann SPA
EagleBurgmann SPN manual
EagleBurgmann SPN automatic


Product variants

HSH(V)-D
Double seal

HSH(V)L-D
Double seal with integrated floating bearing (axial thrust bearing on request).

These seals are designed to be self-closing on the product side, i.e. they will remain closed even with pressure variations or a pressure reversal.

Similar products

ERB

ERB

  • Cartridge unit
  • Double seal with integrated bearing
  • Unbalanced
  • Independent of direction of rotation

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HS-D

HS-D

  • For top entry drives
  • Double seal
  • Unbalanced
  • Independent of direction of rotation
  • Multiple springs rotating
  • Liquid-lubricated
  • Cartridge unit

Read more

HSH(L)U-D

HSH(L)U-D

  • For bottom entry drives
  • Double seal
  • Balanced
  • Independent of direction of rotation
  • Multiple springs rotating
  • Liquid-lubricated
  • Cartridge unit

Read more

Contact

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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