Earl and the Aboveground Storage Tank Forum for fuel tanks, plastic tanks, fuel oil storage tanksWelcome to the aboveground storage tank forum, a bulletin board dedicated to tanks, fuel tanks, plastic tanks, fuel storage tanks, and above ground storage tanks (AST) API650, API653 & UL142 aboveground storage tanks (AST) and chemical plastic tanks. Remember the forum is made up of volunteers from experts to beginners. Unfortunately, we cannot allow free commercialism that promotes products, services, or sites.
Sponsored by:

Contact us about advertising

Re: Tank Datasheet Appendix L

From: DavidR@Fast.net [39] 5 Stars
Date: Friday, May 20, 2011
Time: 6:48:47 AM
Remote Name:


Sir - In my view, if your tank has vents then it will be at atmospheric pressure inside and the vapor pressure can be ignored. If you are designing an Appendix F tank then you should add the vapor pressure to the liquid pressure. If you are pressurizing the Appendic F tank by some other means - nitrogen blanket for instance - then you only need to add your vapor pressure to the applied pressure to the extent that your vapor pressure exceeds the blanket pressure. My opinion only - independent verification is suggested!

Silver Star Sponsors
Tutorial on Pressure Vessel Safety Awareness AIS Forensic Testing Laboratory Spirax Sarco Steel Making Tutorial

Industrial Training School | Little Smokey's Bookstore at AIS Engineering Books | ASR Search Engine | Steam and Power Forum
Want to Advertise on the AST Forum
Confidentiality, Disclaimer & Policy
Copyright 2001-2012
All Rights Reserved; AST-FORUM.COM
Valid XHTML 1.0 Transitional