Material selection for reverse osmosis brine transfer pumps
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I have a question: for the several stages of concentrated brine in reverse osmosis, the TDS values are approximately 2W, 6W, and 12W respectively. The chloride ions are divided into approximately 2k, 6k, and 12k, while the sulfate ions are approximately 8k, 24k, and 48k respectively. Units: ppm. Should dual-phase steel be used for the water pump material, 2205 or 2507? I’ve read some articles stating that when chloride/sulfate levels are ≤0.56, 316L can be used – is this feasible?
Just choose a plastic magnetic pump.
If the temperature is not high, a plastic pump can be used
Using plastic is more cost-effective; if metal must be used, 316L is also an option