To get the pump best suited to your industry application, please go through the below two steps in details.
Step: 1 – Check Temperature Limitations
What is the Material Pumping Temperature?
When choosing the AODD Pump Material, be sure to check the temperature limits for all wetted components. Elastomers may change Temperature limits
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Example: Viton® has a maximum limit of 176.7°C (350°F) but Polypropylene has maximum limit of only 79.4°C (175°F).
Maximum temperature limits are based upon mechanical stress only. Certain chemicals will significantly reduce maximum safe operating temperature. Consult us for chemical compatibility issues.
Step: 2 – Check Chemical Properties
The first consideration when applying a Diaphragm pump to any application is to try and determine how abrasive and corrosive the product to be pumped is.
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What is the Pump Application? – Submersible / Transfer / Other
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Operating Method? – Continuous / Intermittent
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What is the Chemical Viscosity?
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Is it Flammable?
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Is it Corrosive or Abrasive?
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Corrosive liquids, by nature, directly attack the pump materials. The strength of a corrosive liquid depends on its concentration and temperature.
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An Abrasive liquid is one that has particles in it. Some, like inks, have very fine particles, while others, like some paints, contain much larger particles. Handling abrasive liquids is a difficult application for any pump, because the abrasive particles promote pump wear.
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Typical abrasive applications include:
• Paints and Coatings
• Inks
• Filled Roofing Asphalt
• Waste Oils
• Magnetic Oxide TapeCoatings
• Titanium Dioxide Slurries
Is it Shear Sensitive?
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Is Material having Solid Particles? If Yes, What is the size of Particles?
Pump Wetted Material Compatibility Chart
pH is a measure of hydrogen-ion concentration. pH of 7 is neutral.
Below 7, Acid
Above 7, Alkaline
Litmus indicator solution turns red in acidic solutions and blue in alkaline solutions - and it turns purple in neutral solutions.
- The closer to pH 0 you go, the more strongly acidic a solution is.
- The closer to pH 14 you go, the more strongly alkaline a solution is.
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