● Pressure：0~25.0MPa

● Temperature：-160~260℃

● Shaft Diameter：25~360mm

● Speed：≦160m/s，for higher speed, special design is required

√ Preferred structure for high pressure, large shaft diameter and severe application conditions.

√ Dry-running, contact-free operation, no friction

√ Tandem seal arrangement. Primary seal acts as main seal, while secondary seal acts as safety seal

√ Unidirectional or bidirectional available

√ Shrouded mating ring prevents secondary damage in the event of a mating ring fracture

√ The secondary seal with high-performance polymer seal provides better floatability and reliability

√ The auxiliary seal with high-performance polymer seal features excellent temperature resistance, pressure resistance and corrosion resistance

Both primary and secondary seals have the capability of full product pressure. In the event of a primary seal failure, the secondary seal acts as an installed spare with full pressure capability

√ No secondary seal gas supply(nitrogen) injection. Process gas has controlled the leakage across both sets of seal faces, and a small amount of process gas will leak from the secondary seal to the atmosphere

√ Cartridge design makes installation and removal easy

√ For applications without nitrogen supply where the process leakage gas needs to be recycled. It's a structure with relatively high safety and reliability

● LNG refrigerant compressors, Natural Gas Pipeline Compressor, etc.

√ Primary seal gas supply：Gas from compressor discharge/ external gas

√ Primary vent

√ To flare system / recycling system / to safe location

√ Secondary vent：to safe location

√ Separation gas supply：Nitrogen / instrument air, nitrogen preferred