Key Material Recommendations
At room temperature (<60°C), no particles
- PP (Polypropylene): Most commonly used, cost‑effective, available in magnetic drive pumps or self‑priming pumps
- PVDF (Polyvinylidene fluoride): Higher temperature resistance and durability, preferred choice
- 316L stainless steel: Applicable for 20% acetic acid; 304 is not recommended (prone to long‑term corrosion)
- Cast iron, carbon steel and copper: strictly prohibited
Temperature >60°C
Only PVDF, PTFE or Hastelloy C are acceptable.
Pump Type Selection by Working Conditions
- Clean 20% acetic acid (no impurities)
- Fluoroplastic magnetic drive pump: leak‑free, ideal for chemical acetic acid transfer
- Self‑priming magnetic drive pump: for high suction lift requirements
- Acetic acid with minor impurities or crystals
- Fluoroplastic self‑priming pump
- Horizontal centrifugal pump (PVDF/PP)
- High‑pressure, high‑flow applications
- 316L stainless steel centrifugal pump / multistage pump
Quick Selection Rule
- Normal‑temperature general service: PVDF magnetic drive pump
- Budget‑sensitive option: PP self‑priming pump
- Metallic pump: 316L only, avoid 304
Common Model References
- Magnetic drive pump: CQF series (PVDF)
- Self‑priming pump: ZX / FZB series (fluoroplastic)