The operating temperature is 350°C and the outlet pressure is 20 Mpa; what type of valve would be appropriate according to standards?
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The operating temperature is 350°C, the outlet pressure is 20 Mpa, and the medium contains a high level of sulfur; what type of valve is appropriate to use in this scenario?
Y-type shut-off ultra-high pressure inlet valve with self-sealing
OP: Is it high-pressure hydrogenation? It is recommended to use fully metal-sealed ball valves for tracks
Y-type shut-off ultra-high pressure inlet valve with self-sealing
The poster should provide more detailed information regarding this selection recommendation – which workshop is it? The sales performance of valve manufacturers can generally be compared! Use those that are more suitable! Also, when selecting options from design institutes, one can quickly find relevant reference materials by consulting available information!
Full-welded pipeline ball valves – I’m not sure what’s contained in them; sulfur?
If it needs to be cut off, a parallel double-gate valve can be used； If adjustment is needed, a metal-sealed ball valve can be used. It would be best to have a detailed parameter table. I can help you make a more accurate selection. For further inquiries, please contact: Zhang 18913938372 E-mail: zab1568@126.com
Stainless steel, fully welded, double-sealed ball valve – preferably imported! Additionally, the material of the valve can be determined based on the material of the pipeline.
To put it bluntly, does the valve even give you a choice? Doesn’t it matter what the valve is used for? For anything, the first thing it should meet is its functionality, right? If these are the conditions, then choose a valve, regardless of what function it actually performs in that location. Put nicely, that’s called ignorance; put bluntly, it’s just bad judgment. . . . . . There are so many model options in the responses; it seems that either the information is very vague, or it’s the dealers who, in order to make money, will ignore everything else.
The friend upstairs made a valid point; I hope that in the future, when posting similar threads, sea enthusiasts will try to provide more detailed information regarding operating conditions and parameters. Let’s learn together *and make progress. :handshake
This post was last edited by boiler operator on 2010-6-10 17:59; the condition is that a few things are missing. Only the material to be used and the pressure rating can be determined. At 350 degrees, carbon steel can be used, such as American standard WCB cast steel or A105 forged steel; the maximum temperature is 425 degrees. This is the option when the medium is sulfur-free. However, in the presence of sulfur, stainless steel should be used. If the amount of sulfur is unknown, and it is assumed to be low, then CF8M cast stainless steel or A182 F316 forged stainless steel can be chosen. For a working temperature of 350 degrees along with a pressure of 20 MPa, an ANSI 2500 pound class (PN420) pressure rating should be selected. In this case, it’s better to opt for imported materials. In my opinion, domestic valves may encounter some issues at 2500 pound class or PN420 levels; once domestic manufacturing standards improve further in three to five years, valve types used for switching applications will be able to handle high pressures. Based on the available conditions, only this much analysis can be done; as for whether to use ball valves, globe valves, gate valves, check valves, or even control valves, specific requirements are needed.