Anhydrous Ammonia PSV's
Anhydrous Ammonia PSV's
(OP)
The OSHA Standard CFR 1910.111 states that NH3 PSV discharge tailpieces shall have suitable raincaps. Any ideas?, we have considered a hat type, or turning the discharge 90 deg with a bevel cut.





RE: Anhydrous Ammonia PSV's
http://www.prdtechnologies.com/id53.htm
RE: Anhydrous Ammonia PSV's
Just use a weatherproof piece of fabric tied with an elastic. If the valve blows, it will be removed.
I don't recommend to turn the discharge direction, as you need to evaluate where to discharge. Further, ammonia diffusion will be very affected.
Have a safe day
J.Alvarez
RE: Anhydrous Ammonia PSV's
The more you learn, the less you are certain of.