Solvent storage tank (alcohol based product) and Flame Arrestors

[CHEMTT]

Would a solvent storage tank require a flame arrestor if it already has a pressure relief valve or emergency vent?

 

[stookeyfpe]

What's the solvent, what's its classification, and where is someone telling you need a flame arrestor? It sounds like someone want the device in the tank emergency vent discharge, but that's only a guess.

 

[CHEMTT]

The solvent is a mixture of ethanol, methanol and propyl acetate. So the classification is IB.

 

[stookeyfpe]

Where do you want/need/desire to install the flamer arrestor?

 

[CHEMTT]

on the tank

 

[Latexman]

In all three companies I've worked for, where a PRV or emergency vent is provided, flame arrestors are normally not provided.

Good luck,
Latexman

 

[stookeyfpe]

Since you won't say where your going to install the flame arrestor, I'm going to assume it's either on the tank's normal vent or emergency vent. In either case, an in-line flame arrestor is not required by NFPA 30 or the 2009 International Fire Code.

 

[CHEMTT]

Thanks. I am sorry, it was going to be installed on the normal vent.