Low Emission Elastomer O-Ring Seals
Type 48 Seals evolved from the successful, proven John Crane Type 8B1 design, the preferred choice for safe, reliable, unpressurized tandem and pressurized dual seal arrangements in petroleum services for more than four decades. The Type 48 is a dependable, engineered mechanical seal developed specifically for single seal installations to attain M.A.C.T. (Maximum Achievable Controllable Technology) compliance in light hydro-carbons and other VOCs (volatile organic compounds). Type 48 Single Seals control emissions to less than 500 ppm. Available in cartridge or optional shaft-mounted seal arrangement.
- Industrial applications involved in the processing of VOCs and similar hazardous materials.
- Lubrication liquids, aqueous solutions, chemicals, light hydrocarbons, and water services.
Low Emission Single Seal
Designed to satisfy U.S.A. federal, state, and local regulatory requirements. Type 48 assures emission control with a single seal arrangement in VOC services. Years of low emission sealing are provided.
Type 48 Sealing Package
Type 48 Seals are application-specific with the proper selection of primary ring, mating ring materials, and flush arrangement.
Computer Optimized Seal Faces
Computer modeling minimizes thermal and pressure caused distortion. For optimal performance, face materials are specified antimony filled carbon graphite versus silicon carbide as standard.
Flush Maximizes Cooling
Available with an extended flush with single point injection and a large percentage of the mating ring exposed to the process fluid for cooler running. For higher heat loads, a distributed flush with improved heat transfer characteristics is recommended.
Low Emission, Low Pressure O-Ring Shaft Seal For Light Hydrocarbon Services.
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