Cartridge seal R-CARTEX(SN) is a single balanced seal with a connection for flushing. It is a fully mounted unit for use in oil seal chambers of pumps, in particular centrifugal pumps, with an arbitrary direction of rotation. The R-CARTEX(SN) seal is ideal for use in chemical, petrochemical, pharmaceutical, sugar and food, paper industry, beverage production, water supply. A shut-off fluid supply system is required.
Shaft Diameter: d1 = 25 ... 100 mm (1,000"...4,000")
Temperature: t = -40°C ... 220°C (-40°F ... 428°F)
For a combination of graphite/silicon carbide friction pairs - operating pressure: p1 =25 bar (363 PSI)
Sliding speed: vg = 16 m/s (52 ft/s)
For combination of silicon carbide/ silicon carbide or silicon carbide/ tungsten carbide - pressure: p1 = 10 bar (145 PSI)
Sliding speed: vg = 10 m/s (33 ft/s)
Barrier fluid circulation system: p3 max = 25 bar (363 PSI) Δp (p3 - p1) ideal = 2 ... 3 bar (29 .. 44 pounds/sq. Inch), 7 bar (102 lb/sq.inch) for barrier media with poor lubricating properties.
Pump start: Δp (p3 - p1) max = allowed 25 bar (363 PSI) Recommended working environment: max. ISO VG 5 Axial displacement: ± 1.0mm, d1 ≥75 mm ± 1.5 mm
