The primary seal is a contact mechanical seal, the secondary seal is a non-contact dry gas seal, and the oil side seal is a contact mechanical seal. Multi-spring balanced type, static type, suitable for high-speed operation, the seal is a non-container structure, the working medium of the primary seal is the medium itself, and the working medium of the secondary seal is a mixture of external buffer gas and process medium. Sealed as bearing lubricant.
Under normal circumstances, the primary seal bears the full pressure of the medium, and the secondary seal runs under low pressure or normal pressure. When the primary seal fails completely, the secondary seal functions as the main seal, and it can run safely for at least 8 hours.
Sealed non-contact operation, energy saving, safety and environmental protection, reliable performance, simple operation, maintenance-free, and average service life of up to 3 years.
Pressure: 0 ~ 4MPa
Temperature: -40 ~ 180 ℃
Speed: ≤25000r / min
It is suitable for various relatively clean fluid media, mainly used for volatile hydrocarbons and non-volatile hydrocarbon media, and various high and low temperature, high and low pressure working conditions. Such as ethylene, propylene, propane, methane, ethane, liquefied gas, ammonia, MTBE, etc.