Oil-sweeping lobe pumps are mainly used to transport liquids with high viscosity and lubricity, but without solid particles. It has no suction or discharge valve, and relies on the rotor in the pump body to act directly on the liquid in the form of static pressure and to discharge the liquid through the squeezing effect of the rotor, while leaving space on the other side to form a low pressure so that the liquid is continuously drawn in.
So how do you add the correct lubricant to an oil-sweeping lobe pump in the process of use? The following rotor pump manufacturer 's will give you a brief introduction.
1, regularly check the oil level and oil quality of lubricating oil, in general, the normal oil level should be within the range of 1/3-2/3 of the equipment oil level window or label. Oil replenishment for the oil cup, its display oil level only represents the replenishment capacity, and the pump's bearing box oil level is to meet the operating requirements, the oil level in the oil cup is lower than 1/4 of its total volume can be considered for oil replenishment.
2、Check and replenish the oil method, take out a small amount of lubricant as a sample and fresh lubricant for comparison, capable units can consider oil quality assay to ensure the oil quality is qualified. If the sample appears to be cloudy, then it may be the result of mixing with water, which is often referred to as oil emulsification, at which point the lubricant should be replaced. If the sample course darkens in colour or thickens, then it may indicate that the oil has started to carbonise and the old oil should be completely replaced. If possible, flush the oil circuit with fresh oil. When changing the oil, ensure that the oil being changed is of the same type as the old one and that it is replenished to the required oil level.
3、Use oil bath type lubrication system, if the oil temperature is below 60℃(140F) and the lubricant is not contaminated, the lubricant can be replaced once a year. If the oil temperature is 60-100℃ (140-210F), the lubricant needs to be replaced four times a year. If the oil temperature is between 100-120°C (210-250F), the oil will need to be changed once a month. If the oil temperature is above 120°C (250F), the oil will need to be changed once a week.
4. Correct installation and maintenance are important factors in the normal operation of the bearings. At the same time, care must be taken to maintain the cleanliness of the pump bearings. Bearings must be protected from pollutants and moisture, and must have proper installation and lubrication. In addition, the design of the bearing mating, the condition of the oil seal, the form of the lubricant and the replacement cycle and specialised maintenance also play an important role and must all be attended to.
The above is about the correct way to add lubricant to the oil sweeping lobe pump, I hope it will help you. In addition, the lobe pump manufacturer recommends that when using the oil-sweeping lobe pump it must be regularly checked, maintained and serviced to ensure its normal operation.