S738 S748 Dry Gas Seal for Pipeline Compressor

Operating Parameters

● Pressure: ≤15MPa ● Temperature: -60~200℃ ● Shaft Diameter: 90~260mm ● Speed: ≤15000r/min ● Linear Velocity: ≤180m/s The above limit application parameters are not met simultaneously, customized design for particular applications.

Product Description

● Non-contact running seal face. ● The surrounding design for seat effectively reduces the damage of equipment which 　caused by broken seat. ● Two sets tandem frictional pairs, the primary seal is for main seal, the secondary seal is 　for safe seal. ● The two stage seal design in same pressure, secondary seal also can operate safety 　under the full process pressure. ● The auxiliary seal use high-performance polymer seal which has good temperature 　resistance, pressure resistance, and corrosion resistance. ● Meeting the compressor start-stop within full pressure and start-stop frequently cases. ● Unidirectional groove and bidirectional groove are available, and unidirectional groove is 　preferred. ● Cartridge design is easy for installation and dismantling. ● Secondary seal gas supply port is provided normally, can add secondary seal gas.

Interface Details

● A　Primary Seal Gas　　　　Natural gas of compressor discharge ● B　Primary Vent Gas　　　　Vent to flare/Vent to safe location ● C　Secondary Seal Gas　　　　Nitrogen (optional) ● D　Secondary Vent Gas　　　　Vent to safe location ● E　Separation Gas　　　　Nitrogen/Instrument air, nitrogen is preferred

Materials and Configurations