Double Face Cartridge Mechanical Pump Seal Easy Install Cartex DN
Product Parameter
| Shaft diameter | d1 = 25 ... 100 mm |
| Temperature | t= -40 °C ... 220 °C (-40 °F ... 428 °F) |
| Pressure | p1 = 25 bar (363 PSI)[ Sliding face material combination BQ1] |
| Sliding velocity | vg = 16 m/s (52 ft/s)[ Sliding face material combination BQ1] |
| Pressure | p1 = 20 bar (290 PSI) [ Sliding face material combination Q1Q1 or U2Q1] |
| Sliding velocity | vg = 10 m/s (33 ft/s) [ Sliding face material combination Q1Q1 or U2Q1] |
| 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 |
| Recommended supply medium | max. ISO VG 5 |
| Axial movement | ±1.0 mm, d1 ≥75 mm ±1.5 mm |
Materials:
| Seal face product side | Silicon carbide DiamondFace (Q15) |
| Seat product side | Silicon carbide DiamondFace (Q15) |
| Seal face atmospheric side | Carbon graphite resin impregnated (B) |
| Seat atmospheric side | Silicon carbide (Q1) |
| Secondary seals | FKM (V), EPDM (E), FFKM (K), Perfluorocarbon rubber/PTFE (U1) |
| Springs | Hastelloy® C-4 (M) |
| Metal parts | CrNiMo steel (G), CrNiMo cast steel (G) |
Features:
- Dual seal
- Cartridge
- Balanced
- Independent of direction of rotation
- Double pressure balanced
- Integrated pumping device
- Variants available: for eccentric screw pumps (-Vario) and 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 MTBR intervals
- Significantly improved dry-run capability for inadequately lubricated sealing surfaces, thus vastly improved process safety
- Universally applicable, even with high solids content in the medium
Recommended applications:
- Petrochemical industry
- Chemical industry
- Pharmaceutical industry
- Power plant technology
- Pulp and paper industry
- Mining industry
- Food and beverage industry
- Sugar industry Universally applicable
- Centrifugal pumps
- Eccentric screw pumps
Recommended piping plans:
The EagleBurgmann QFT1000 buffer system and QFT2000 vessels are suitable for eCartex-DN in back-to-back arrangement. The EagleBurgmann TS1016 and TS2000 thermosiphon systems support double and back-to-back seal configurations.
