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Chemical Industry Application - China Fleyenda Actuated Valve Manufacturer

Chemical Industry Application - China Fleyenda Actuated Valve Manufacturer

Chemical Industry Application

Main chemical medium:

  • Sulfuric Acid: a industrial raw material with very wide application, but it is with strong corrosion so that WCB and Cast Iron are not suitable for it, based on different concentrations and temperature, SS304 and SS316 would be suitable for it but it is with limited anti-corrosive performance for sulfuric acid medium; Valves lined with fluorine material is the most suitable one for it, because it is with excellent corrosion resistance to sulfuric acid and it’s with good economical cost.
  • Hydrochloric Acid: Most of the non-metallic material are with good corrosion resisistance to hydrochloric acid, but most of the metallic material are with an opposite effect, so fluorine lined valves and plastic valves such as PP, PVDF valves are the good choice for conveying hydrochloric acid.
  • Nitric Acid: There is wide application of Stainless steel in Nitric Acid material, in normal temperature, SS304, SS321 are even with better anti-corrosion performance than SS316 and SS316L. But it normaly needs titanium and titanium alloy material for high temperature nitric acid.
  • Acetic Acid: it can be serious corrosion to use normal steel material in nitric acid with different concentration and temperature, but it’s a good choice to use stainless steel for acetic acid, molybdenum-containing stainless steel 316 even can be used for high temperature and dilute acetic acid steam. And users can choose high alloy stainless steel or fluorine plastic valves for high temperature, high concentration acetic acid or other corrosive medium contained application.

             



     

Valves in Chemical Industry Application

4 Key Points for Chemical Valves Selection:

  • Chemical character of the medium, such as concentration, temperature, it’s very important for the selection of valve material
  • Working pressure including continous working pressure, max instantaneous condition working pressure, manufacturers must make sure that the valve body, valve plug, and operational units can meet with it
  • Leakage: It’s important to do sealing test before delivery the valves, make sure if the valve seat does not have leakage problem.
  • Flow rate, valve function such as on/off or adjusting, fire safety requirement, and any other additional function needs.
Fleyenda’s professional engineering and sales team can help you to select the most correct valves including valve type, valve parts (valve body, stem, bonnet, packing) material, electric actuator, pneumatic actuator, etc., and we have strict quality control from incoming raw material, to production processing, QC/QA, tests before package to make sure you can get the safest valves, while maximizing your productivity and uptime of equipments.
 


5 Representative Valves for Chemical Industry

  • Manual / Pneumatic Lined PTFE Ball Valve
  • Manual / Pneumatic Line PTFE Butterfly Valve
  • Manual / Pneumatic UPVC Ball Valve
  • Manual / Pneumatic UPVC Butterfly Valve
  • Check Valve
 

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