B56VN

Mechanical Seals – Mechanical seals for pumps – Pusher seals

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

• • Shaft diameter : d = 20 … 110mm (0.79” … 4.33”)

  • Pressure : p1 = 40 bar (580 PSI

  • Temperature : t = -40 … +220 (-40 … +428

  • Sliding velocity : vg = 23 m/s (75 ft/s)

  • Axial movement : 2.0 mm … 4.0 mm depending on diameter and installation situation

  Other sizes on request

• • 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)

API 682/ISO 21049

• Process industry
• Oil and gas industry
• Refining technology
• Petrochemical industry
• Chemical industry
• Power plant technology
• Hot water
• Light hydrocarbons
• API 610/ISO 13709 pumps
• Process pumps