Features and Benefits • Dual pressurized gas seal design eliminates process leakage and coking problems in a compelling economic design that avoids liquid barrier-related seal issues.
• Laser-applied wavy face technology creates a gas film barrier between the seal faces to provide non-contacting,low drag, low energy consumption performance.
• Sinusoidal waves allow bi-directional operation to simplify installation on double-ended pumps and the smooth wave texture is self-cleaning to resist contamination or fouling.
• Alloy 718 welded metal bellows assembly construction offers the highest resistance to stress corrosion cracking in high temperature, sulfuric-laden services.
• Designed to operate without cooling and at full process temperature, the cartridge seal tolerates high axial overtravel during pump warm-up or thermal transients.
• Spring-energized graphite (SEG) seals absorb differential thermal expansion to maintain flat seal faces and low steam leakage rates.
• Qualification tested per API 682 Type C requirements for 3NC-FF designs, GTSP seals are suited for hot hydrocarbons such as hot oils,gas oils, asphalt and heat transfer fluids.
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