Question about pumping off a load

NEVER AIR!!!!! Stick to that rule. Nitrogen is fine, but you will at some point deliver to a customer that says to use air. "We've done it that way for years". Not on your watch.

 

I used to air off resin at the papermill. Keeping pressure below 30 psi or the automatic release valve would scare the beejeesus out of me. Make sure there's no pressure left in the tanker before opening dome lid when finished unloading.

 

With some latex loads,you might want to keep the tank under pressure after you unload.
Prevents the latex from drying up.

 

No, not supposed to do that, dangerous and most likely illegal

 

Especially for the tank wash guys.

 

So what do you do with UN1160 or UN 1235?(too name but 2,there are mant more)
Those 2 are allways under pressure.
(The product builds up pressure on it's own)

 

I make a note on the wash ticket order form. My company hauls a lot of latex, and I can't remember any that build up that much pressure or drys so fast that it can't be washed.

 

Venting a tank means you need a source where air is able to flow through the tank... either open the latch on top so there is constant air flow... a sealed tank once the product is out it with suck the tank in because of no air supply

 

Ever unloaded natural latex with a tankcontainer?

 

Sure they do might be a couple psi.
But never move an empty tank with stored pressure
Like 10-20 or 30 psi, you puncture and charged tanked it'll explode.