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Acid Pumps

Corrisive material pumps for acid and chemicals

Acid pumps are specially made pumps that are used to safely transport acidic and corrosive fluids, including phosphoric acid, sulfuric acid, hydrochloric acid, and nitric acid. The materials used in the construction of these pumps are resistant to acid, which helps to avoid corrosion, leaks, and equipment failure while in use.

What Makes a Pump Suitable for Acids?

  1. Corrosion-Resistant Materials:

    • Plastics: PP (Polypropylene), PVDF (Polyvinylidene Fluoride), PTFE (Teflon), ETFE – ideal for most acids.

    • Metals: SS 316, Hastelloy, Titanium – used when strength and temperature resistance are needed.

  2. Seal Options:

    • Magnetic drive (sealless): Eliminates leaks – ideal for hazardous acids.

    • Mechanical seals: Chemical-resistant variants used in traditional centrifugal or vertical pumps.

  3. Pump Types for Acids:

    Magnetic Drive Pumps: Leak-free, ideal for hazardous acids.
    AODD Pumps: Air-powered, safe for explosive environments, can handle solids.

Common Acids and Material Compatibility:

Pump material recommended for below Acids

 

Sulfuric Acid (H₂SO₄): (below 50% – PP), (above 50% – PVDF), (98% – SS316), (98% & above 100°C – PTFE)

Hydrochloric Acid (HCl): PVDF, PTFE, PP

Nitric Acid (HNO₃): PVDF, PTFE, Hastelloy
Phosphoric Acid: PP, PVDF, SS316
Acetic Acid: SS316, PTFE

 Applications:

 
  • Chemical dosing and transfer

  • Acid unloading from tankers

  • Electroplating and pickling lines

  • pH adjustment systems

  • Acid circulation in scrubbers and reactors

 

Selection Tips:

To choose the right acid pump, know:

  • Type of acid

  • Concentration & temperature

  • Required flow rate (LPM/M³/hr)

  • Head (discharge height/pressure)

  • Installation type: horizontal, vertical, submersible, etc.

  • Solids presence in the fluid

Top Choices for Acid Pumps:

Application – Bulk acid transfer

Best Pump Type – Magnetic Drive

Notes – Leak-free and reliable

Application – Acid unloading from tankers

Best Pump Type – AODD Pump

Notes – Handles solids and air pockets

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