Sealed and stored in a cool and ventilated place, avoid direct sunlight.
Shelf life is generally 3 years, need to be used as soon as possible after opening.

1, The oil temperature rises abnormally check: circulating pump failure, whether the pipeline is clogged, etc., need to stop the furnace to check the pump, filter, dredge the pipeline and so on.
2, The system pressure fluctuations: the possible causes of system air intake, heat transfer oil vaporization, etc., need to cool down to a safe pressure to check the equipment exhaust and other processing.
3, Heat transfer oil leakage: cause of aging seals, welding cracks, etc., need to shut down to repair, replenish the oil before the pressure test to confirm the system seal.
4, Oil aging: because the heat transfer oil use time is too long, over-temperature operation, high-temperature oxidation, etc., need to replace the new oil, thoroughly clean the system.

Supplementary new oil must be of the same type as crude oil, and dewatering is required before adding.
Waste oil should be treated according to environmental protection requirements and dumping is prohibited.

Filters are cleaned monthly to prevent impurities from clogging pipes.
Full testing of coking is required after 6,000 hours of system operation. Coking filter?

Heat transfer oil should be regularly sampled and tested: viscosity, acid value, flash point, residual carbon and other indicators.
Acid value > 0.5mg KOH / g or residual carbon > 1.5% need to consider changing the oil.