• Categories:News
• Author:Lisa
• Origin:
• Time of issue:2022-11-19
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(Summary description)How to use explosion-proof F wrench? Explosion proof F wrenches have many names, some of which are valve wrenches, cock wrenches, valve hooks, valve F wrenches, etc. They are mainly used to open and close various manual valves, generally divided into two types: anti-skid F wrenches and ordinary ones. Its use characteristics: convenient, light and versatile. The following points must be paid attention to when the explosion-proof F wrench is used to open and close the valve daily: A. Before the operation of the explosion-proof F wrench, the appropriate F hook wrench should be selected according to the regulations for different sizes of valves. It is strictly prohibited to use an extended lever or a long wrench to pull small valves, because the design of manual valves is mainly based on ordinary manpower, The strength of the valve sealing surface and the closing force of the valve shall be considered before operation. B. The opening and closing of valves should be: the force should be stable, and no strong force or fast force should be used, especially the closing and opening of some high pressure valves. C. Attention shall also be paid to opening the steam valve: heating shall be conducted in advance before opening, and condensate shall be discharged. When opening, attention shall be paid to the use of F wrench to slowly open, so as to avoid water hammer. D. After all valves are opened, use the F wrench to rotate the handwheel a little to tighten the threads to avoid looseness and damage. E. For rising stem valves, remember the position of the valve stem when opening and closing. It is strictly prohibited to hit the dead point at the beginning of the whole process, and pay attention to check whether it is false closing when it is fully closed. F. When the pipeline is used at the initial stage, due to the large amount of dirt, or when the normally open valve is stained with dirt, the operator should use the valve hook to slowly open the valve, which is also a slight opening, and use the high-speed flow of media to wash away the dirt, then gently close it, then open it again, and repeat many times. G. When using the explosion-proof F wrench, if it is found that it is too hard to operate, the cause should be analyzed immediately, and it is forbidden to do anything recklessly