H75VA4-S

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H75VA4-S

H75VA4-S
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Item Description
1.1.1 Seal ring
1.1.2 Driver
1.1.3 Thrust ring
1.1.4, 1.3, 3, 6 O-Ring
1.1.5, 8 Spring
1.1.6, 13 Set screw
1.2 Mating ring
2 Seal sleeve
4 Gland plate
5 Flow distributor
7 Throttle ring
9 Disc
10 Setting device
11 Hexagon bolt
12 Set ring


F Flush
Q Quench
D Drain

H75VA4-S

Features

  • API 682 Category 2 and 3, Type A, Arrangement 1 seal
  • Single seal
  • Balanced
  • Cartridge unit
  • Bi-directional design
  • Rotating multiple springs
  • Integrated pumping device available
  • Replaces the H75VN seal

Advantages

  • Compact design
  • Universally applicable both for retrofits or original equipment
  • Efficient stock-keeping due to standardized components
  • Extended selection of materials
  • Extended field of operation in terms of temperature and pressure
  • Metal parts also in special materials available

Operating range

Shaft diameter:
d1 = 20 ... 110 mm (0.79" ... 4.33")
Pressure: p1 = ... 42 bar (609 PSI)
Temperature:
t = -40 °C ... +176 °C (-40 °F … +349 °F)*
Sliding velocity: vg = 23 m/s (75 ft/s)
Axial movement:
d <50 mm ±1,0 mm
d ≥50 mm ±1,5 mm

* Engineered up to 260 °C (500 °F) with FFKM (K) secondary seals.

Materials

Seal ring: Blister resistant carbon,
Silicon carbide SSiC (Q1), RBSiC (Q2)
Mating ring:
Silicon carbide SSiC (Q1), RBSiC (Q2)
Secondary seals:
EPDM (E), NBR (P), FKM (V), FFKM (K)
Springs: Hastelloy® C-276 (M5)
Metal parts: CrNiMo steel 316 (G) or equivalent, optional materials on request.

Standards and approvals

  • API 682 / ISO 21049
  • API 682 4th ed. Cat. 2/3 - 1CW-FL

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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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