● Pressure：≤40MPa

● Temperature：-160~260℃

● Shaft Diameter：25~220mm

● Speed：≤50000r/min

● Sliding Velocity：≤180m/s

The limit values of the above parameters are not met at the same time, and the special design will be considered for special applications.

● Suitable for over-high pressure, high temperature, high speed, and demanding applications.

● Non-contactrunning.

● Unidirectional grooves and bidirectional grooves are available.

● The outer circle of the seat is designed to be surrounded to effectively reduce the damage to the other parts caused by the fragmentation of the seat.

● Two sets of pairs are arranged in tandem, with the primary seal being the main seal and the secondary seal being the safety seal.

● The auxiliary seal adopts a high-performance polymer seal which has good temperature resistance, pressure resistance and corrosion resistance.

● Both stages of the seal can withstand the full pressure of the medium, and after the failure of the main seal, the safety seal can still operate under the full pressure of the medium.

● There is a secondary seal gas injection, the secondary seal working gas is nitrogen, and no process gas leaks from outboard seal to the atmosphere.

● Assembly structure makes it easy to install and disassemble.

● Suitable for most applications, it is a structure with the highest safety and reliability. Process gas does not leak into the atmosphere, and external nitrogen does not enter the process system.

● Gas storage natural gas compressor

● Recycle hydrogen compressor

● Oilfield reinjection gas compressor

● A　Primary seal gas supply-------From compressor discharge，External gas

● B　Primary leakage gas-----------Vent to flare，Vent to safelocation

● C　Secondary seal gas supply----Nitrogen

● D　Secondary leakage gas--------Vent to safe lacation

● E　Separation gas supply---------Nitrogen/Instrument air，nitrogen is preferred