SIL3 instrument isolation valve
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The company has launched a new project that involves hazardous processes; the SIS is designed to meet SIL3 standards. Are there any manufacturers of relevant instruments and isolation valves willing to offer their services, with proper certification required?
SIL3 is a requirement for the instrument valves themselves, rather than a requirement for the SIFs, right? The SIL level usually depends on three aspects: PFD, system capability, and structural constraints. For a single device, it is not difficult to achieve SIL3 for both the PFD and system capability. As for the aspect of structural constraints, it is not difficult to achieve SIL3 for instruments. However, for valves, especially those without PVST, structural constraints are generally addressed through certification using Path 2. In the absence of redundancy in valves, very few domestic valve manufacturers are able to meet this standard; it is recommended to consider imported valves.
The last edit to this post was made by liu530014416 on 2022-8-2 at 09:45. SIL3 is redundant; by adding additional protective measures through the design institute or third parties, it can be determined whether SIL2 is sufficient
:) Our factory’s cut-off valves can meet the requirements; feel free to discuss if needed
I can send one to you so you can see if your checks are correct
Our company, Zhejiang Linuo, is a domestic manufacturer of control valves. Our control valves and shut-off valves have obtained BV certification and meet the SIL3 certification standard. Those interested can contact us at daichengcheng@linuovalve.com
When SIL3 is encountered in ordinary chemical enterprises, it can be considered a failure of the design institute. A protective layer should be added to reduce the SIL level. SIL3 requires full redundancy and hard wiring.
Upstairs, they don’t even know when to conduct a SIL analysis; they just talk nonsense without even understanding the proper steps for project design and implementation. Besides, who provides the risk matrix? The project owner believes the risk is extremely high; what are you going to do? Who will analyze it? It also depends on the level of the analyst.
Hello, our company is Jiangsu Huaying Valve Co., Ltd. Our factory is located in Wuxi, Jiangsu. Our cut-off valves have obtained the Sil3 certification from the German TUV certification body. If you are interested, feel free to contact me at 15251600084