DONIT TESNIT特力 DONIFLEX G-U密封垫片 石墨垫片耐高温
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DONIFLEX® G-U
Devoid of any organic solvent, this graphite-based composite allaying aramid and special functional inorganics, is advanced heavy-duty material. It displays excellent physicochemical properties (thermal, chemical, stress resistance, etc.) with high compressibility and flexibility enabling it to conform to uneven surfaces. Steam supply, heating systems, and chemical industry are amongst its well-suited application. The version with a metal insert withstands higher pressures. Also, fitted with a highly performant anti-stick, gasket replacement is quite effortless following prolonged elevated temperature service.
PROPERTIES
APPROPRIATE INDUSTRIES & APPLICATIONS
AUTOMOTIVE AND ENGINE BUILDING INDUSTRIES CHEMICAL INDUSTRY GENERAL PURPOSE HEATING SYSTEMS HIGH-TEMPERATURE APP. PAPER & CELLULOSE INDUSTRIES PETROCHEMICAL INDUSTRY POTABLE WATER SUPPLY POWER PLANT STEAM SUPPLY VALVES WATER SUPPLY Composition Graphite, aramid fibers, functional inorganic fillers, NBR binder; optionally available with expanded metal reinforcement (AISI 316L, 0.15 mm) Color Anthracite Approvals and compliances EC 1935/2004 Sheet dimensions Size (mm): 1500 x 1480 | 2000 x 1480
Thickness (mm): 0.8 | 1.0 | 1.5 | 2.0 | 3.0
Rolls: 1480 mm x L (m)
Thickness (mm): 0.8 | 1.0 | 1.5 | 2.0
Other sizes and thicknesses available on requestTolerances ± 5 % on length and width
On thickness up to 1.0 mm ± 0.1 mm
On thickness above 1.0 mm ± 10 %Surface finish Standard: 4AS. Optional: IQ, graphite or PTFE
TECHNICAL DATA
Typical values for 2 mm thickness
Density DIN 28090-2 g/cm3 1.25 Compressibility ASTM F36J % 35 Recovery ASTM F36J % 25 Tensile strength ASTM F152 MPa Longitudinal 5 Transversal 5 Stress resistance DIN 52913 50 MPa, 16 h, 175°C MPa 42 50 MPa, 16 h, 300°C MPa 37 Specific leak rate DIN 3535-6 mg/(s·m) 0.05 Thickness increase ASTM F146 Oil IRM 903, 5 h, 150°C % 3 ASTM Fuel B, 5 h, 23°C % 3 Weight increase Oil IRM 903, 5 h, 150°C % 30 ASTM Fuel B, 5 h, 23°C % 25 Compression modulus DIN 28090-2 At room temperature: εKSW % 30 At elevated temperature: εWSW/200°C % 6 Creep relaxation DIN 28090-2 At room temperature: εKRW % 3.5 At elevated temperature: εWRW/200°C % 0.3 Creep deformation Change in thickness at 20°C, 50 MPa % 30 Change in thickness at 300°C, 50 MPa % 12 Change in thickness at 400°C, 50 MPa % 15 Leachable chloride content FSA NMG 202 ppm <20 Leachable fluoride content FSA NMG 203 ppm <20 P-T diagram EN 1514-1, Type IBC, PN 40, DIN 28091-2 / 3.8, 2 mm
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