Gasolines of grade 93# and 97# have similar properties; can the pumps used for their storage and transportation be used as backup for each other?

Pumps can be shared, but it is recommended to use separate pipelines!!! :handshake :victory:

It can be shared during the loading and unloading of oils, but to reduce oil mixing, the inlet and outlet pipelines of the pump should be installed separately.

93# and 97# can share a pump, but the pipelines must be separate, as their performance is similar and this has little impact on the quality of the oil； It is best not to share a single pump for diesel and gasoline; instead, separate pumps should be used for each type of fuel. This approach ensures the quality of the fuels.

First question: If the requirements are not particularly strict, the pipelines can also be universal. For example: The gasoline in the reservoir is pumped to the dock for loading onto ships; there are three pipelines for the gasoline, and three loading pumps are installed. When the ship’s tonnage and design are similar, it is possible to use dedicated pumps for specific tasks. When a larger ship arrives and the pumping time with a single pump is not sufficient, two or three pumps can be used in parallel. In such cases, the flow rate in one pipe might be too high; therefore, it is also possible to use three pumps connected to three separate pipes. Well, I hope this explanation satisfies you. Second question: Diesel pumps and gasoline pumps should preferably not serve as backups for each other.

Oil: The installation of oil transfer pumps must comply with the following regulations: 1. When transporting oils with special requirements (such as aviation fuel), dedicated oil transfer pumps and backups should be installed； 　　2. For oil pumps that continuously transport the same type of oil, when no more than 3 such pumps are in operation at the same time, one spare pump can be installed ； When more than 3 oil pumps are in operation at the same time, there shall be no more than 2 standby pumps ； 　　3. For oil pumps that are operated frequently but not on a continuous basis, it is not necessary to provide a backup pump; they can use oil pumps that handle similar types of oil as backups, or a single backup pump can be installed for all of them. One spare pump can be shared for gasoline and diesel. 　　4, 93#, and 97# are determined based on octane number; they have similar physical properties. In the pipeline design of refineries and oil depots, single-pipe closed sequential transportation is generally used ； In the design of pipelines for oil storage and discharge, 93# and 97# gasoline often share the same pipeline; each time they are transported alternately, it is necessary to use a bilge pump to clean the pipeline.