Could someone advise on the material selection for the pipeline from the outlet of the dechlorination tower to the brine production section?
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If non-metallic materials are used for the entire pipeline section from the dechlorination tower to the brine production area, will there be any problems?!:handshake This post was last edited by shizhiyong001 on 2008-8-22 09:23 ]
We use titanium for the pump outlet, and non-metallic materials for the rest. Last edited by limingshuguang on 2008-8-19 23:24.]
Considering cost factors, titanium is generally not used; instead, steel-lined PE, steel-lined PTFE, steel-lined rubber or CPVC, PVC+FRP can be employed, and all of these options can last around 4-6 years provided their quality is satisfactory
We chose some titanium tubes combined with a steel frame and PE material, and it works very well!
Use reinforced PVC. Or CPVC will do. However, using steel lined with rubber is better. Those who can afford it can use titanium. Last edited by limingshuguang on 2008-8-21 21:34.]
Brine: NaCl 310 g/l, SO4-2 < 5 g/l, NaClO3 < 10 g/l; pressure P: 0.1–0.4 MPa; temperature: 55°C ± 5°C. Pipe materials: PPH, FRP, FRP/PVC, steel lined with rubber/steel lined with plastic
We are using fiberglass reinforced plastic, and we need to take into account thermal expansion and contraction, so expansion joints should be installed.
We use steel-lined PTFE pipes, and the results are excellent.
Those with steel linings covered in plastic usually last only three or four years, and iron ion levels can become excessive due to delamination； Titanium is not very expensive these days, and it has a long service life, so it should also be a good choice.
The pump outlet can be made of titanium; afterward, a steel lining with plastic coating, or a non-metallic material can be used – it’s cheaper