PVRV for Fiberglass Acid Tank

[KernOily]

Hi guys. What would you suggest for pressure-vacuum protection (a PVRV) for a tank that stores 35.2% hydrochloric acid? The tank is 20,000 gallon capacity. It breathes to atmosphere via an acid vapor scrubber. A PVRV must be fitted to protect the tank in case the scrubber packing plugs up. I am looking for something like a Varec 220 or 221 but those aren't available in Hastelloy. Thanks!!!

 

[Duwe6]

Keep Googling, there are some fiberglass PVRV's available. And. "for a price" you can have one fabricated in Hastelloy, RA-330, or Carpenter 20.

 

[KernOily]

Thanks Duwe6. That's what I needed; looks like fiberglass is the way to go. Hastelloy is a little too spendy. Thanks brother!