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SPECIAL DUTY SEALS - DOUBLE COMPONENT SMD - SHAFT MOUNTED DOUBLE SEAL The SEPCO� SMD is a heavy duty multiple component seal that mounts externally on equipment with adequate first obstruction space. It can be designed to handle up to 1/4" shaft deflection and 1/8" end-play making it ideal for use on agitators, mixers, reac- tors, belt driven pumps and other equipment that exceeds the movement capabilities of standard off-the-shelf seal designs. Hydraulically Balanced Reciprocally balancing the seal allows for changes in operating pressure conditions without face separation. Reduced hydraulic loads allow the seal to operate successfully at high pressure with- out reducing lubrication critical for cooler operation & reliability. Mounting The seal mounts externally and the component design can be installed without making critical measurements. It is also avail- able as a cartridge mounted unit where preferred. Multiple Seal Design Allows for installation on high-pressure applications where haz- ardous, abrasive, non-lubricating products are handled that requires flushing without dilution of the pumped product. The seal is capable of operating in either a double or tandem mode. Isolated Metal Parts The SMD can be designed to eliminate all metal components from the process fluid making it ideal for use on corrosive applications. Lug Driven The rotating elements are lug driven to provide positive rotation on high pressure or applications where torque factors are excessive. SMD - SPECIFICATIONS Metal Parts: Standard metal parts: 316 SS Face Materials: Standard: High quality chemical grade carbon-graphite or solid nickel bound tungsten carbide Optional: Silicon carbide O-ring Materials: Standard: Viton�, EPR and AflasTM Optional: Perfluorinated Elastomers Operating Capabilities: Pressure: To 750 psig (52 bar g) Temperature: -20� to 500�F. (-29� to 260�C) Speeds: 5000 fpm (25 m/s) Stationary seat rings must be ordered separately. Please see page 37 for standard configurations. � 14 SEPCO Sealing Equipment Products Co., Inc.
Goodyear Rubber Products
