ORIGRAF®
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ORIGRAF® High-performance sealing solution for all industries ORIGRAF® graphite seal provides a long lasting high-performance sealing solution for all industries and can be specifically designed for extreme thermal & pressure cycles ensuring higher safety in operation while optimizing total cost of ownership.

ORIGRAF® SEAL BENEFITS • • • Excellent elastic recovery, capable of reaching 40% of compression recovery (spring back effect) Graphite spring-back effect serves the sealing function Integrated compression limiters (metal-to-metal concept) allow for the protection of the seal from asymmetric tightening or torqueing bolts of assembly Adaptability to extreme thermal and pressure changes (relative movement between the sealing contact areas) Chemical inertness: flexible graphite, which contains no binders, withstands most chemicals (mineral acids and solvents). Monobloc seal, easy to ensure that...

CONCEPT AND DESIGN ORIGRAF® seals are made from strips of flexible graphite grades without binder, densified under pressure using die-forming processes ensuring manufacturing performance consistency. The leak-tight interface is created by installation compression and final densification of the seal when metal to metal touch with a mechanical stop made by groove or limiter (compliant with Flanges Standard ASME/ANSI B16-5). ORIGRAF® seals are designed to be compressed by 15 to 20%. Graphite range Technetics Group Product Name Max. Temp. ° C/ °F (in oxidizing environment) Standard grade for...

Gasket dimensions and tolerances: C A = seal inner diameter B = seal outer diameter Please consult for all your standard and non-standard seals requirements. Groove size: The dimensioning of grooves has a direct impact on the sitting pressure to be developed on the seal in order to obtain the metal-to-metal contact. The chart below shows the influence of groove tolerances on the precision of the sitting pressure (PY0) defined for a seal with initial section l0 x e0. Groove Sizes Housing Tolerances g Recommendations for use: • Surface conditions : The surface conditions of the contact areas...

ORIGRAF® PERFORMANCE Evaluation of gaskets elastic recovery: Often a leakage occurs because of the offloading on the seal (can be due to the elongation of the fasteners, or rotation of the flange). ORIGRAF® seal, thanks to its excellent resiliency, can handle extreme variation of compression and still ensure the leak-tightness of the connection. Seals: NPS 3’’ – 900 lbs tested under offloading condition (by 0.05mm opening step) – Water pressure test (175 bar/2538 psi) at RT after 350°C/662°F. Evaluation of gaskets elastic recovery at RT after 350°C/662°F (pressure drop test with different...

Assembly Type Assembly Seal Type ON000 Seal composed of a single graphite ring Minimum possible thickness 2 mm/0.078 in Groove Section according to pressures to be sealed. Minimum internal diameter 6 mm/0.236 in outside diameter up to 1500 mm/59.055 in High pressure Seal composed of a graphite ring and 2 antiextrusion cups (huge gaps between parts, graphite anti-creeping, preservation of density high pressure or high temperature, highly corrosive or impurities charged fluid) Adapted to large space between metallic assembly parts Fluids containing impurities or highly corrosive (cups to...

Successful Applications ORIGRAF® seals are mainly used in applications servicing Nuclear, Chemical, Petrochemical, Aerospace, and Oil & Gas industries. The range of applications can be extensive, including steam equipment, heat exchangers/heaters, piping connection flanges, corrosive circuit, critical flange applications, boilers manways, fire safe requirements, alkylation units. Atmospheric microwave plasma technology Dissociate carbon dioxide-CO2 and methane-CH4 int hydrogen-H2 and carbon monoxide-CO (syngas). Two packing made of 4 rings ORIGRAF® ON250/ON000 are used to seal the reactor....

For more information on how Technetics Group supports high performance sealing technology, visit technetics.com Tus dita volorio vel magnis mi, voluptur, sam velitate vendant voluptaturia dest, Contact Us Today to Discuss Your Application is coErsped molo que auda sin nobitae comnimet repudae nos eicidel. Primary ORIGRAF® Manufacturing Facility 90, rue de la Roche du Geai 42029 Saint Etienne cedex 1 FRANCE No. 10 Xiangjie Road, SND Jiangsu Province Suzhou 215129 P.R. China Phone: +1-803-783-1880 Email: columbia@technetics.com The technical data contained herein is by way of example and...