Do all acid pipeline flanges need to be equipped with protective covers?
Thread Content
Do all acid pipeline flanges need to be equipped with protective covers?
I’ve been in contact with salt-acid pipelines; I’ve never seen this at the site. One of our alkali solution valves experiences frequent leakage at the gaskets and the large cover, due to the valves being closed at both ends and heat being applied in the middle; to protect the employees, metal covers were installed in those areas. Later, I found out the reason; once the valves on both sides were not closed anymore, such problems didn’t occur.
It doesn’t seem to be a mandatory requirement; it’s good to do it if you want, but it doesn’t look good from an aesthetic perspective. My sulfuric acid pipelines here don’t have anything like that!
Metal hoses and compensators – these vulnerable components must definitely be installed. We experienced such an accident this year: a hose burst, causing injuries due to high-temperature acid
All acid pipes and strong alkali pipelines entering the indoor area here are fitted with transparent plastic sleeves, and conductivity meters are installed at lower positions for monitoring. Aesthetically pleasing, safe, and easy to inspect, but requires a large investment.
There’s pressure buildup; measures must be taken to prevent pressure buildup in pipelines in areas where temperatures change significantly
**It is very necessary to install protective covers at chemical pipelines and the connections for high-temperature materials
Thank you all. It seems that only the coking regulations require this; nothing else does
Your approach is very advanced. So, what is done in the case of flanges and valves? Upload a photo, let’s learn* learn*!
Hello, we can customize protective covers for flange valves; the material and style can be selected according to requirements
We did the same after foreign experts conducted an inspection and gave their recommendations. Because the reason is simple – there is indeed a certain degree of risk – no regulatory basis was sought. We cut tetrafluoride plates into strips and wrap them around the rotating surface of the flange to prevent splashes caused by accidental leaks from injuring people. That’s why it was named a blowout preventer cover