Can the hydraulic support use carbon steel valve? What is the difference with stainless steel valve? Does it affect normal use? First of all, it is not that carbon steel is combined with rust,Comprehensive consideration should be given to the working conditions used;Can use,You need to see pressure, valve type, etc.Under the same conditions,The service life of stainless steel valve is longer,But the cost is also high,For example, the same standard gate valve is DN100 150LB,The price of stainless steel may be more than 3 times that of carbon steel,Even more.But if properly maintained,Carbon steel valve mission is also very long,Yes,No impact,Long life of stainless steel valve body,Also just refers to the valve body.Rust,Domestic valves that cannot be used normally are generally carbon steel valves: as long as the internal valve core and valve seat are made of stainless steel,Other galvanized or black treatment such as valve body and support parts,The specific use of coal mines,Generally need to replace about
The 3 M pre-purification water I bought was clear when the water was washed. did I buy fake products? Hello,You can prove the authenticity of the product in the following two ways,1. whether the fine filter element of the water purifier has anti-counterfeiting code on the bottle body can be verified, it is recommended that you verify the authenticity of the product through the serial number on the anti-counterfeiting code.2. after you have installed it, you need to ask the buyer if it is 60 working days. you can receive the 'warranty card' mailed to you by 3 M (China) Shanghai head office '.The above two points hope to help you, thank you for your support for our products! Like you, I think there is a problem. my water is not only clear, but also the water filter core can't be seen in the blue transparent pipe.