If you need to choose to buy cryogenic storage tanks, then you must find out which of its solution substances, and according to their working environment to select the right cryogenic storage tanks. In short, there are many points to note when choosing a cryogenic storage tank, we must maintain their own judgment without the influence of others.
In the selection of low-temperature storage tanks, first of all, we should understand whether the solution substances contained in the polyethylene resistant, although polyethylene does not have the same substances can dissolve it, but there are still a small amount of substances stored for a long time can dissolve it, such as benzene, toluene, halogenated hydrocarbons, low-grade lipids, etc., so it should not be used.

Second, the purchase of low-temperature storage tanks should pay attention to the working pressure, temperature and specific gravity of the liquid. In general, it works for temperature pressure for room temperature atmospheric pressure, specific gravity below 1.2, special circumstances temperature can be below 60 ℃, small volume can be resistant to 1-2kg/cm2 hydraulic pressure, vertical storage tanks with a higher specific gravity of no more than 1.3, horizontal storage tanks with a higher specific gravity of no more than 1.5.

Low-temperature storage tanks in use, when the liquid intake, liquid discharge flow is larger, the corresponding flow should be installed in the exhaust hole. When changing the liquid to be filled, you should know whether the cryogenic storage tank is allowed for the liquid being filled; cryogenic storage tank lower part of the pipe such as a joint or flange connection should be perpendicular to the barrel wall, using a soft connection, so as not to fill the liquid, the barrel wall up and down uneven expansion leads to damage to the joint connection resulting in leakage, and in serious cases damage to the joint and the barrel body.

The liquid inlet is higher from the bottom of the tank, the liquid inlet should be bent to the low-temperature storage tank wall to let the liquid into the tank wall down to reduce the impact on the bottom. Low-temperature storage tank storage pressure is greater, in connection with other flanges, attention should be paid to strengthen. General flange, cryogenic storage tank factory is generally tightened, in transport, loading and unloading may cause loosening, the user should check the sealing performance of the rotomolded storage tank before use, can add liquid to observe whether leakage. Rotomolded storage tanks containing chemical liquids, water to test the leakage to prevent losses.