Issues related to valve selection for high-pressure hydrogenation control valves 1
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Issue 1 in the selection of high-pressure hydrogenation control valves: What is the key factor in selecting a control valve for regulating the liquid level in the high-pressure hydrogenation heat exchanger? As we all know, the 78000 or 77000 series control valves from Memosyn are commonly used here. So could anyone explain why this brand is preferred, or what are the key factors behind its selection? What patented technology gives it an advantage? At full closure, the pressure drop is 22.32 MPa; the design temperature is 330°C. It produces hot oil and liquid, with an operating density of 751.7 kg/m3.
Why do you keep asking such questions? Are you an agent? You see, the several issues you’ve raised relate to the operation of control valves in harsh environments. This is precisely the key technology in the manufacturing process of control valves! Manufacturers capable of producing such valves under ultra-high pressure differences and high temperatures – how could they be afraid of valves operating under other conditions? !
What do those in the tech field study if not the key technologies? What is there to discuss about normal operating conditions? Why are domestic valves less used in critical applications for high-pressure hydrogenation and reforming? How much do Chinese people spend each year on imported valves? Is it not worth discussing?
This is a problem related to equipment manufacturing processes and material shaping. As an instrumentation technician, can you figure it out? I think it’s sufficient to understand why this type of valve is chosen; it’s great to be able to identify its advantages and disadvantages! How much money the people of this country spend each year is not something that commoners like us should worry about!
Is it only the reason of “equipment manufacturing processes and material forming”? If you don’t know, follow this post to see others’ answers. Integrity isn’t something everyone possesses, and patriotism isn’t just something said verbally.
Okay, I’ll just wait for the expert to answer your question! Be a good onlooker! Be determined and study this issue thoroughly; I’ll be waiting for you!
Don’t take it to heart; if there are problems, they should be solved properly. Everyone can contribute their ideas, but when it comes to the core issues, one still has to rely on oneself or consult reputable manufacturers for analysis, as the problem you face might also be a challenge for others as well. Personal opinions； Pneumatic valves for hydrogenation, as well as fittings such as needle valves and ball valves, have been used before; the pressure ranges from 25 MPa to 70 MPa. In any case, grades of 50 MPa and 100 MPa are chosen for such applications. It’s difficult to obtain them locally, so imports are still necessary for this purpose at present.
We use Samson’s high-pressure valves
Could you talk about Samson’s selection and usage?
Give it a round of applause – Memsonylan is known as the leading brand of valves for harsh operating conditions
High pressure enables minimum flow regulation, with high precision and stability.