Is this a name of a company or a type of steel? It is used for scraping amterial of a rotating drum. It also shows on the blade KF Steelflex and Lodding Specifications
We have SS tank ( 316 L ) that we think leaked where we welded it - the material going into the tank was at 200 F - could we have thermal shocked it - is this possible - is 200 F too hot - what do we do to prevent this in future? The tank is vertical hold capacity of 5700 gallons - leak is at...
Is there any regulation which requires a nitrogen blanket into atmospheric storage tanks that contain flammable liquids? I could not find anything in NFPA - but there might be - typically these tanks are aound 10000 gallons each.... Help....
I have a question -- we have a UL 142 tank which we will need to put a vacuum releif on and wanted to know if the standard allows these tanks any vacuum rating whatsoever . If none, then how does one put a vacuum relef on such a tank.....
What ways are they to reduce the nitrogen usage?
1. We cannot put in an air compressor to take the place of nitrogen cause we want to avoid mishaps.
2. We have a nitrogen membrane unit with liquid backup and the costs are way too high and we have many years beofre we can get out.
3. We use...
What is the norm for purging vessels while in operation? We typically keep a constant purge of 50 scfh ( 70 acfh) of nitrogen on at all times no matter what size of reactor we have and they vary from 500 gallon to 4000 gallon.
We still purge the vessels with a presure purge before chemicals...
I am stumped or forgot to to do a calculation - if I have a 1000 gallon under zero pressure ( atmosheric) - I have about 133 cf of air ( 7.5 gallons per CF).. but if I pressurze that vessel with air, then I will have more air in the vessel but I forgot how to figure that volume out.....
please...
Does anyone have any diagrams the way a vessel should be purged? Our pressure vessels only have nozzles on the top and they are asme stamped vesssels so if we need to get to the bottom, we hae to do it from the top? But, does it matter?
We have a process which requires nitric acid to be pumped from tank to final location. We have been using Ansimag pumps which do not last. Anyone have any success in this with any type of pump?
I am looking for a flowmeter for various liquids which will handle solvents and acids , 1' and 2" dia - with intriscially safe display or explosionproof showing both rate and total and be low cost - under $1500 -
We currently use a Stokes 412H pump which is used for pulling solvent laden vapors out of a process vessel. The solvents contamintae the oil in the pump and destroy the pump. I assume people have used pumps succesfully for thi soperation and wonder what type and brand of pumps were used?
THe...
Does anyone out there point me in the right direction for a spark tester beisdes one I can purchase from Pfaudler or Dedetrich to detct glass loss on a glass lined vessel?
How does one convert vacuum pressure reading to absolute pressure reading. I have a manomenter reading 25 " Hg - what is that in absolute pressure
I work at a chemical plant which has to dispose of solvent laden waste water to a waste incineration place and I would like to find another was to handle this. Typically, we are getting rid of thousands of gallons of waste with about 5 % of it being solvents and a few other misc fluids... The...
Is there a website or article/page which shows how to determine the amount of purges a vessel must be purged to lower its oxygen concentration varying the nitrogen purity?
