eCartex Dual seals

eCartex Dual seals

Features

  • Dual seal
  • Cartridge
  • Also Balanced
  • Independent of direction of rotation
  • Also Double pressure balanced
  • Integrated pumping device
  • Variants available: for eccentric screw pumps (-Vario) and also gas-lubricated version (-GSDN)

Advantages

  • The series has sliding surfaces that are equipped with EagleBurgmann DiamondFace technology as standard
  • Up to 80 % less energy consumption and minimized heat generation of seal due to friction-reducing DiamondFace layer
  • Up to 100 % extended operating period, prolongation of MTBF and also MTBR intervals
  • Significantly improved dry-run capability for inadequately lubricated sealing surfaces, thus vastly improved process safety
  • Also,Universally applicable, even with high solids content in the medium

Operating range

Shaft diameter:
d1 = 25 … 100 mm (1.000″ … 4.000″
Other sizes on request
Seal Temperature:
t= -40 °C … 220 °C (-40 °F … 428 °F)
(Check O-Ring resistance)
Sliding face material combination BQ1
Seal Pressure: p1 = 25 bar (363 PSI)
Sliding velocity: vg = 16 m/s (52 ft/s)
Also Sliding face material combination Q1Q1 or U2Q1
Also Seal Pressure: p1 = 20 bar (290 PSI)
Sliding velocity: vg = 10 m/s (33 ft/s)
Barrier fluid circulation system:
p3max = 25 bar (363 PSI)
Δp (p3 – p1)ideal = 2 … 3 bar (29 … 44 PSI),
7 bar (102 PSI) for barrier media with poor lubricating properties)
Pump startup:
Δp (p3 – p1)max = 25 bar (363 PSI) allowed
Also Recommended supply medium: max. ISO VG 5
Axial movement: ±1.0 mm, d1 from 75 mm ±1.5 mm

eCartex Dual seals Materials

Seal face product side: Silicon carbide DiamondFace (Q15)
Seat product side: also Silicon carbide DiamondFace (Q15)
Seal face atmospheric side: Carbon graphite resin impregnated (B)
Seat atmospheric side: Silicon carbide (Q1)
Secondary seals: FKM (V), also EPDM (E),  FFKM (K),also Perfluorcarbon rubber/PTFE (U1)
Springs: Hastelloy® C-4 (M)
Metal parts: CrNiMo steel (G), also CrNiMo cast steel (G)

 

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