Plastic ball valve maintenance knowledge
Stearic Acid is a saturated fatty acid with an 18-carbon chain Acid Product. The IUPAC name is octadecanoic acid. It is a waxy solid and its chemical formula is C17H35CO2H. The salts and esters of Sodium Stearate stearic acid are called stearates. As its ester, stearic acid is one of the most common saturated fatty acids found in nature following palmitic acid.The triglyceride derived from three molecules of stearic acid is called stearin.
In general, the Melamine Powder applications of Acid Octadecanoic stearic acid exploit its bifunctional character, with a polar head group that can be attached to metal cations and a nonpolar chain that confers Boric Acid Flakes solubility in organic solvents. The combination leads to uses as a surfactant and softening agent. Stearic acid undergoes the typical reactions of Triple Pressed Stearic Acid saturated carboxylic acids, a notable one being reduction to stearyl alcohol, and esterification with a range of alcohols. This is used in a large range of manufactures, from simple to complex electronic devices.
Stearic Acid,Sodium Stearate,Acid Octadecanoic,Triple Pressed Stearic Acid HENAN LIHAO CHEM PLANT LIMITED , https://www.lihaoche.com
The plastic ball valve for storage should be timely cleaned to make the plastic ball valve look beautiful; for the rust-prone processing surface, the valve stem and the sealing surface should be coated with a layer of rust inhibitor or affixed with a layer of rust-proof paper to protect it; The plastic ball valve inlet and outlet channels should be closed with plastic cover or wax paper to prevent dirt from entering.
There is a plastic ball valve in the warehouse to meet the accounting requirements. They are categorized into different categories, with neat emissions, clear labels, and easy identification. The small valves should be discharged on the shelves according to the model specifications and size order, and they should be classified well. For large valves, they should be placed on the floor of the warehouse, and they should be sorted in order according to the specifications and models. The plastic valve must be placed vertically, and the flange sealing surface cannot be in contact with the ground, nor can it be put together in a pile. To treat extra-large valves and valves that cannot be stored temporarily, place them outdoors in a dry and ventilated place. The sealing surface should be coated with anti-rust oil. The passages should be sealed with sealing caps; some valves have no fillers in the filling mouth to prevent rainwater from leaking. Inside the valve, the filler port should be closed with butter, and the valve should be covered with rain cloth or the like. It is better to temporarily build a protective shed to protect the valve.
For those plastic ball valves that are not used for a long time, if the filling port is packed with asbestos, it should be taken out to avoid electrochemical corrosion with the valve and damage the valve stem. For valves with no packing, the manufacturer will usually be equipped with the corresponding packing, and the inspector should take good care of it. And we must always pay attention to the plastic ball valve's aging period, so that first-in, first-out.
Damaged valve parts such as handwheels, handles, scales, etc. during the handling process must be promptly ordered by the manufacturer to be sent over and must not be missing.
Rust inhibitors and softeners that exceed the specified period of use should be periodically replaced or added as required.