Internal Pipe material for Mixed bed exchanger vessel
Internal Pipe material for Mixed bed exchanger vessel
(OP)
5One of Vendor has offered SS316 internal pipes for mixed bed exchanger. I m worried with its competibility with HCL. Will it be accepted? Can anyone please help me out.....
Thankyou in advance
Thankyou in advance





RE: Internal Pipe material for Mixed bed exchanger vessel
RE: Internal Pipe material for Mixed bed exchanger vessel
it is true that it is not "compatible" with HCL but take into account that the regeneration (usually not more than 8%) will be done only during certain periods of time and will not be in contact with it. in that case in a typicall installation you will have that after 10 years you will loose about 0.2mm of piping, which is acceptable if the pipe thickness wall is 1 or 2 mm.
regads
gorostidi
RE: Internal Pipe material for Mixed bed exchanger vessel
RE: Internal Pipe material for Mixed bed exchanger vessel
RE: Internal Pipe material for Mixed bed exchanger vessel
For industrial grade equipment, 316SS is typical for H2SO4 applications. You can also use PVC, CPVC. If your are using HCL for regeneration, in lieu of 316SS for the regeneration distributor & underdrain, use Hast C.
In addition, if your application is ultrapure water, you do not want corrosion products to leach into your water.
RE: Internal Pipe material for Mixed bed exchanger vessel
...but unfortunatelly in many installations the air pressure used for mixing the resins is more than the necessary and the ionic exchange resins make a huge force acting like a piston upwards. This is the reason why steel is used in the mid diffusers, so that this big stress can be supported