Cost Estimation of Vessels with Lining

[izhar7787]

Problem Statement:
I am doing a cost comparison between a lined-vessel and vessel without lining. I wish to know the cost comparison
However, I have no idea on how to estimate this

Questions
1) How does the cost of vessel lining i.e. Stainless Steel Cladding/Lining be determined? Is it based on surface area? volume? Or is it a fraction of the vessel cost i.e. 1/5 of total vessel cost?

2) Can anyone help with any unit rate of Stainless Steel Cladding/Lining?

Appreciate you sonnest response to the above query. This is very important for me.Thank you

 

[vpl]

These sound like some good questions to ask whomever will be doing the manufacturing.

If you haven't selected a manufacturer, trying an internet search on "lined pressure vessel cost" will bring up some who should at least be able to answer your basic questions.

Patricia Lougheed

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[MrTank]

Recently I have an RFQ with this type of vessels. I would assume that the price is based on the wetted surface area and the thickness of the welded cladding. ASME VIII-DIV 1 PART UCL has some info regarding "Requirements for Welded Pressure Vessels Constructed of Material With Corrosion Resistant Integral Cladding, Weld Metal Overlay Cladding, or With Applied Linings" but i don't think they have anything about the pricing. You can have the best answer from a company that provides this kind of service. Let us know what you got.

MechCiVAero

“I have not failed. I've just found 10,000 ways that won't work.”
? Thomas A. Edison

 

[micalbrch]

We have purchased steel, stainless steel and lined vessels in the past. As a rough estimate I would use factor 5 for a rubber lined steel vessel compared to a normal steel vessel of the same size and pressure rating.

 

[austsa]

The answer depends on many factors. Example 1: Thickness of cladding. This will determine whether overlay is single or double layer. Example 2: Number and size of nozzles. Nozzles with small ID are very difficult (ie very expensive) or impossible to overlay. Also applies to vessel if vessel ID is small.
austsa

 

[moltenmetal]

micalbrch: 5x the price of an unlined unit seems very steep for rubber lined. 5x would be a high price even for a teflon-lined vessel in our experience.

Lining does add cost, mostly by virtue of requiring proper fabrication details and testing to ensure that an intact lining of uniform thickness can be installed. For small vessels, the biggest problem is access, requiring the addition of body flanges- that can add up cost quickly.

For shop-fabricated tanks of a size that can be entered, a factor of 2x the unlined cost would be closer to the mark in our experience.

 

[micalbrch]

moltenmetal: I'm assuming divisions of the vessel to get it internally lined compared to a simple steel vessel where the shells can just be welded together. If that (divisions) is not necessary, I'll agree with your estimation.

 

[bernoullies123]

Assuming that cladding is the standard 3 mm thick. As noted above it is best to contact a manufacturer for an order of magnitude costing. If you don't have the time and need something quickly then I would take the CS price and triple it at least. The cost isn't in the 3 mm cladded material, it is in the fabrication.