amemberof BCSl and FREUDENBERG RELY ON EXCELLENCE Features Statotherm R profile rings R901/B are made from permanently elastic, expanded graphite (purity > 99.85%, ash content <0.15 %, chloride content <20 ppm) without binders or fillers. Statotherm R profile rings R901/B are almost maintenance-free and are intended for exposure to extreme temperature cycling and/ or high or low temperature ranges which cannot be withstood by elastomeric O-rings. Advantages • High purity nuclear grade graphite • Outstanding deformability • Permanent resiliency • Permanent elasticity • Good cross-sectional tightness Operating range Pressure: p = 500 bar Sliding velocity • Pump application vg = 2 m/s Temperature • Continuous operation: t = -200 °C ... +500 °C • Steam: tmax+550° Recommended surface roughness: RZ = 10 -40 pm Chemical resistance: pH = 0 ... 14 Resistant to almost all organic and inorganic acids, alkalis, oils and solvents. Standards and approvals • TA Luft • BAM (upon request) Notes Statotherm profile rings must only be permitted to deform in the axial direction. The sealing groove must be designed to prevent tensile stresses causedby widening of the profile rings (which are damaged by radial deformation). Article numbers of variants R901/B5: density 1.3 g/cm3 R901/B6: density 1.4 g/cm3 R901/B7: density 1.6 g/cm3 R901/B8: density 1.8 g/cm3 R904/...: reduced sulphur content < 200 ppm Forms of supply • All dimensions (minimum cross-section 3 mm) and profiles up to max. 0 1,000 mm • Precompressed rings, closed, split or with slanted cut • Also available with protective cap (in 1.4541) on one side Recommended applications Industries • Process industry • Petrochemical industry • Chemical industry • Power plant technology • Building services industry eagleburgmann.com [email protected] All technical specifications are based on extensive tests and our many years of experience. The diversity of possible applications, however, means that they can serve only as guide values. We must be notified of the exact conditions of application before we can provide any guarantee for a specific case. This is subject to change.