plastic valves VS lined metallic valves
plastic valves VS lined metallic valves
(OP)
Good morning,
I need to choose some valves for a neutralization plant involving Hcl Acid(30%, T°30C) pipes and NaOH (30%, T°45°C) pipes. The operating pressure is 6 Bars.
I'd like to know the pros and cons for using plastic valves vs lined metallic valves (linned with PTFE or any other thermoplastic).
In my mind, i think plastic valves are les expensive but the are less rugged than metallic valves. I think also that high temperature (45°C) can affect plastic valves life.
Am i wrong or right? Is there a possibility that plastic valves could be use in such application?
Thank you very much.
Djaz.
I need to choose some valves for a neutralization plant involving Hcl Acid(30%, T°30C) pipes and NaOH (30%, T°45°C) pipes. The operating pressure is 6 Bars.
I'd like to know the pros and cons for using plastic valves vs lined metallic valves (linned with PTFE or any other thermoplastic).
In my mind, i think plastic valves are les expensive but the are less rugged than metallic valves. I think also that high temperature (45°C) can affect plastic valves life.
Am i wrong or right? Is there a possibility that plastic valves could be use in such application?
Thank you very much.
Djaz.





RE: plastic valves VS lined metallic valves
RE: plastic valves VS lined metallic valves
I'll check if flanged style plastic valves are rated the ASME Flange class. If not, it can be a serious issue to solve.
In fact, most of the valves i am looking for are manually operated. So, i think there are more manufacturers in this case than it is for control valves.
Iam still open for any suggestion regarding this topic.
Thank you very much.
Djaz.
RE: plastic valves VS lined metallic valves
RE: plastic valves VS lined metallic valves
The catalogue of georgfisher is really impressive. There are a lot of plastic products for industrial process (what i am looking for actually).
Great!!!
Djaz.