Hello MJCronin & Montemayor,
Thank you both for your replies to my post. I was able to dig up the fabrication drawings in our drawing room. The vessel was built in 1969 by Chicago Bridge & Iron Company (CB&I), and the tank was rated for -12.55 psig vacuum. It is 62 ft in diameter, 90 psi...
Does an LPG (Butanes) Pressurized Storage Sphere require a vacuum breaker? Our existing tanks were designed with a vacuum pressure (actually a duo-check valve) that is set to open at 1" H2O and has a design pressure of 90 psi (tank design pressure) at ambient conditions. I have been...
