Nitric acid is a highly corrosive mineral acid, When it comes to pumps for Nitric Acid material selection is critical.
While some metals can be used in the construction of phosphoric acid pumps they may have a limited life. The best metals to use would be either 316 stainless steel or Hastelloy. Technopolymers offer good chemical resistance; materials such as polypropylene, PVDF and ETFE, are recommended. Viton and PTFE are the most resistant elastomers.
AxFlow offers a range of chemically resistant pumps that includes magnetically driven pumps and lined pumps all suitable for pumping phosphoric acid that range from plastic AODD pumps including numerous different types of mag drive pump across the UK.