98%-6% sulfuric acid dilution pipe
98%-6% sulfuric acid dilution pipe
(OP)
Our plant is looking to upgrade our sulfuric acid piping. Carbon steel is the current spec, which we will probably stick with for the transfer lines that handle only ~98% sulfuric at ambient temps with 40gpm. The problem area is our regen skids for our DI water systems. The mixing tees dilute the acid down to 6%, which produces a ton of heat. I looked at using Resistoflex multi-axis PTFE lined pipe, but the section after the mixing tee is 6". Does anyone have suggestions for some alloy that can handle this? We want to stay away from flanged connections, which is why I was looking at the Resistoflex multi-axis lined pipe. Maintenance would prefer an alloy that is weldable (field modifications). Thanks in advance!





RE: 98%-6% sulfuric acid dilution pipe
Keep the flow velocity real low in the CS lines--less than ~3 ft/sec. 40 gpm doesn't tell us anything by itself.
RE: 98%-6% sulfuric acid dilution pipe
RE: 98%-6% sulfuric acid dilution pipe
I think he means it's 6" dia., not length.
RE: 98%-6% sulfuric acid dilution pipe
I have spoken with MEC about their ZeCor system. I plan on sending out some drawings for a price quote, this week.
RE: 98%-6% sulfuric acid dilution pipe
PTFE Resistoflex may be your best bet if it holds up to the temp. They have good article on their website.
RE: 98%-6% sulfuric acid dilution pipe
okay on the pipe diameter being 6".
RE: 98%-6% sulfuric acid dilution pipe