H75VN Burgmann mechanical seals

H75VN

Features

  • Single seal
  • Cartridge unit
  • Design acc. to API 682 / ISO 21049
  • Category 2 and also 3, Type A, Arrangement 1
  • Independent of direction of rotation
  • Rotating multiple springs
  • Also Integrated pumping device available (H75VP)

Advantages

  • “Low-Emission-Seal” acc. to the American STLE-limits
  • Also 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 also pressure
  • Metal parts also in special materials available

Operating range

Shaft diameter:
d = 20 … 110 mm (0.79″ … 4.33″)*
Pressure: p1 = 40 bar (580 PSI)
Temperature:
t = -40 °C … +220 °C (-40 °F … 428 °F)
Sliding velocity: vg = 23 m/s (75 ft/s)
Axial movement: ± 2.0 … 4.0 mm depending on diameter and installation situation* Other sizes on request

H75VN Materials

Seal face: Carbon graphite antimony impregnated (A)
Seat: Silicon carbide (Q1, Q2)
Secondary seals: EPDM (E), NBR (P), FKM (V), FFKM (K)
Springs: Hastelloy® C-4 (M)
Metal parts: CrNiMo steel (G), Duplex (G1), Hastelloy® C-4 (M)

Standards and approvals

  • API 682 / ISO 21049

 

Download catalog for more information:H75VN