Cartex Dual seals

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 Ideal seal for standardizations Universal applicable for packings conversions, retrofits or OEM No dimensional modification of the seal chamber (centrifugal pumps) necessary, small radial installation height No damage of the shaft by dynamically loaded O-Ring Extended service life No damage caused by dirt entered during assembly Straightforward and easy installation due to pre-assembled unit Individual adaptation to pump design possible Customer specific versions available Operating range Shaft diameter: d1 = 25 ... 100 mm (1.000" ... 4.000" Other sizes on request Temperature: t= -40 °C ... 220 °C (-40 °F ... 428 °F) (Check O-Ring resistance) Sliding face material combination BQ1 Pressure: p1 = 25 bar (363 PSI) Sliding velocity: vg = 16 m/s (52 ft/s) Sliding face material combination Q1Q1 or U2Q1 Pressure: p1 = 20 bar (290 PSI) Sliding velocity: vg = 10 m/s (33 ft/s) Barrier fluid circulation system: p3max = 25 bar (363 PSI) ?p (p3 - p1)ideal = 2 ... 3 bar (29 ... 44 PSI), 7 bar (102 PSI) for barrier media with poor lubricating properties. Pump startup: ?p (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: Silicon carbide (Q1), Carbon graphite resin impregnated (B), Tungsten carbide (U2) Seat: 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) Standards and approvals Compliant to TA Luft (German Clean Air Act) Recommended applications Petrochemical industry Chemical industry Pharmaceutical industry Power plant technology Pulp and paper industry Mining industry Food and beverage industry Sugar industry CCUS Lithium Hydrogen Sustainable plastics production Alternative fuels production Power generation Nuclear power technology Universally applicable Centrifugal pumps Eccentric screw pumps Recommended piping plans The EagleBurgmann QFT1000 buffer system and QFT2000 vessels are suitable for Cartex-DN in back-to-back arrangement. The EagleBurgmann TS1016 and TS2000 thermosiphon systems support double and back-to-back seal configurations. Product links: EagleBurgmann QFT1000 EagleBurgmann QFT2000 EagleBurgmann TS1000 EagleBurgmann TS2000 EagleBurgmann MultiFlow Unit (MFU) EagleBurgmann BestFlow