Thanks LittleInch.
Now I better understand the paragraph. I will use a small relief valve at DP and then the large ones at 105% of DP.
According to K322.6.3(a) the pressure during relief could rise up to 10%.
Dears,
I have sized a piping according to formulas of chapter IX "High pressure piping" (K304.1.2), the internal design gage pressure is 315 bar. Could I set the pressure relief valve at 330 bar (+4.7%)?
According to paragraph K322.6.3(b) I could. Or have I misinterpreted the text?
Thanks...
Dear engineers,
Is it possible to install a pressure vessels ASME VIII div.1 and div.2 in Iran?
Do you have experience about it?
Why no company in Iran have suppliers of pressure vessels as per ASME VIII with U and U2 stamps (already checked in ASME official site...
Dear expert,
We shall deliver a pressure vessel to an Indian customer who requested an IBR certification. We have some questions:
- The pressure vessel shall work at maximum 60°C and is not under fire. IBR does apply anyway?
- Does an ASME sec. VIII div. 2 pressure vessel can be accepted by...
SOLUTION
I found an article about the corrosion of carbon steel over long period of time due to humidity. The focus of the article is about waste container for the disposal of nuclear waste, but the data I found in it can be used also for our problem.
This article states that the corrosion...
UPDATE
Today I spoke with the suppler of the additive that the customer want to use in water.
He assured me that with 2% of its additive and using city water (potable water) no rust problems occur. Also the parts in the accumulator that are periodically wet and dry will not be affected by...
Dear expert
We have received offers from two supplier who have to manufacture a pressure vessel according to ASME VIII div.2 with U2 stamp. Both supplier claim they have U2 certification, but:
- Supplier A: in its website it say "Designator U2 – Certified by ASME"
- Supplier B: in the offer it...
Thanks for your answers. I'm getting a more clear view of the question.
The system works this way (also see attachment): the water from an open tank is pumped into the system. In the system water charge a water/air pressure vessel that is connected to other vessel on the air side. These vessels...
These pressure vessel will be used as an hydraulic accumulator for a steel extrusion press.
Paradoxically the manufacturing of the pressure vessel is the smallest problem. It will be performed using forged rings welded together. The pressure vessel will be designed according to ASME BPVC sec...
Thanks for your advices.
The internal coating was our first idea to protect the inside of the vessels, the problem is the high pressure of 330 bar (about 5000 psi). We should require a 600 mm (24") opening in order to allow the painting and the inspection. Such a large opening is not accepted...
Dear engineers
My company is issuing a RfQ for pressure vessels. Working fluid water 98% and 2% of mineral oil. Max. temperature 50°C, pressure up to 330 bar.
These pressure vessels work as accumulators, that means water level changes periodically inside the tank. The gas inside is air.
The...
