This next entry will try to explain the differences between a standard skid tank and a UL-142 tank.
Before you ask me, I cannot make copies of the Ul-142 code, it is copyrighted and it is too long to display. Each copy is designated to the fabricator with its own serial number. You can purchase the book directly from Underwriters Laboratory yourself.
When looking at the differences, we simply follow the UL recommendation. There are parameters in how you weld, how you do the overlapping, how you secure the ports and fittings on the tank, and how far the ends stick out. I am over simplifying in this example, but it is just a matter of following procedures within the code. Last, you will also find a name plate with the manufacturer’s name, serial number, and UL label in ‘gold’.
As far as accessories, these tanks come with a 1x-standard vent, 1x-emergency vent, fill cap as you can see in the pictures. When you request, double wall UL 142 tanks, then 2x- emergency vents will be included.
I get asked about inventory quite a bit, so to answer this questions. We normally stock single and double wall Ul 142 tanks up to 3000 gallons. Anything above that, will be built in accordance to your needs.
Take a look at the pictures and email me under the “contact us” tab with any questions or requests.
-Andy
Please let me know if metal fuel storage tanks need to be electrically earthed. Which code or regulation as per NFPA or UL stupulates this requirement
Shivaraman-
As fas as I am concerned and looking through the UL book, I cannot find a reference stating that UL tanks need to be electrically earthed. WI can share with you that this would more than likely fall under “field installation services”. When we have done a trn key project, we often do the start up on the tank and yes the tank will need to be grounded per owner’s recommendations or electrician. Again, I canot find anything in the UL code that mandates that. Hopefully that helps.
Andy