Are ball valves not suitable for pipelines carrying flammable and explosive liquids?
Thread Content
I would like to ask the teachers: are ball valves not suitable for pipelines carrying flammable and explosive liquids? This post was last edited by chinazwr on 2009-2-20 19:54.]
As long as the flow rate is not controlled by a valve, a ball valve should work fine.
Ball valves should also be able to control flow, right? In confusion. . .
When selecting ball valves for pipelines carrying flammable and explosive liquids, a higher sealing grade is preferred to prevent leaks; regulating flow ball valves are generally not used for this purpose.
Generally speaking, ordinary ball valves may have a relatively high leakage rate; they are not suitable for use with flammable and explosive media. Of course, there are also specialized versions with higher sealing standards
A ball valve is suitable for 40 kilograms at temperatures below 180 degrees. Ball valves can be used for rough adjustment. If the swelling of the fluid is severe, the material of the sealing surface needs to be taken into consideration; hard-sealed ball valves are generally not recommended
A ball valve can be used. The ball valves used must be fire-resistant and anti-static. For your reference.
There are many types of media used with ball valves on offshore platforms, and it seems that leakage from ball valves is no longer a major issue nowadays.
Ball valves can be used, but they must have a fire-resistant design
Flammable and explosive liquid pipelines generally use plug valves rather than ball valves; our ethylene oxide production pipelines are designed in this way
Thank you; you hit the nail on the head. That’s what is generally said in books as well. :lol
In fact, in the fine chemical industry, it is quite common to use ball valves for flammable and explosive liquids. The choice of valve should be made based on the properties of the material, such as its corrosiveness, as well as the process requirements related to the installation of the valve.
Excuse me, on the 12th floor – which book are you referring to? I’ve been looking for information on this topic. Thank you
Ball valves now have excellent sealing, so they can be used in environments with flammable and explosive substances without any problems. Just make sure antistatic measures are in place, that’s all
Ball valves are acceptable, but they cannot be used for precise flow control
We use ball valves for all our ammonia systems
Refer to clause 7.2.2 of \"SH3059-2001 General Rules for the Selection of Materials for Petrochemical Piping Systems\". 7.2.2 Ball valves, plug valves, and other special valves with general structures used for process materials, as well as for pipelines carrying extremely or highly hazardous media and flammable media, shall have fire-resistant and anti-static designs. For your reference.
There doesn’t seem to be any specific regulations for this, right? In our fine chemical industry, ball valves are generally used in the process flows
There is no such rule. It can be used.
I’m terrified – I’m working on a design that involves flammable and explosive materials, and I’ve been using ball valves; I never thought about the need for fire and static electricity protection. Thank you so much!