Sebuah pabrik bahan kimia murni (fine chemicals) yang pindah ke fasilitas baru ingin mengurangi ketergantungan pada sistem udara bertekanan sekaligus meningkatkan efisiensi energi. Perpindahan ini menjadi momen tepat untuk meninjau ulang pemilihan pompa agar setiap aplikasi menggunakan tipe yang paling efisien.
Kebutuhannya mencakup transfer jarak jauh, bongkar muat (unloading) jangka pendek, dan pengolahan limbah, sehingga tidak cukup hanya mengandalkan satu jenis pompa.
➊ Step 1: Define Your Needs (Transfer vs Circulation vs Metering)
1) For long-distance transfer of raw materials and finished products, continuous operation with low running costs is key.
✘ Exclude: Centrifugal (high cavitation risk), Gear (seal leakage), AODD (high air consumption), Peristaltic, Plunger (low flow)
✔ Recommended: EODD (energy-efficient) or Screw (high viscosity capability)
2) For short-term unloading from tankers or barrels, portability and rapid chemical changeover are important.
✘ Exclude: Centrifugal (poor self-priming, slow cleaning)
✔ Recommended: AODD (self-priming, dry-run capable, easy to clean)
3) For intermittent wastewater circulation, the pump must handle solids and self-prime for transfer to coagulation tanks.
✘ Exclude: Centrifugal, Gear (not solid-tolerant), Plunger (excessive pulsation)
✔ Recommended: AODD (large particles, dry-run capable)
➋ Step 2: Analyze Fluid Characteristics
Customer uses a mix of acids, bases, and solid suspensions. Foaming can also affect liquid formulations.
✘ Exclude: Centrifugal (cavitation risk), Gear (seal leakage), Screw (material limitations), Vortex (low efficiency)
✔ Recommended: AODD/EODD – seal-less, leak-proof, self-priming, solid-tolerant, low shear, ideal for foaming or high-viscosity fluids.
➌ Step 3: Confirm Flow and Pressure
Consider both flow range and pressure tolerance when selecting the pump.
➍ Step 4: Installation and Environmental Conditions
Customer previously used AODD pumps, but the new facility aims to reduce air system dependence.
- Air supply limits: Long-distance stations cannot use compressed air → EODD required
- Mobile unloading: Tanker area with air hookups → Keep AODD (light, cordless, explosion-proof)
- Outdoor wastewater: Compressed air available, low noise preferred → AODD or EODD both suitable
➎ Step 5: Cost and Maintenance
- EODD has higher upfront costs, but 70% lower energy costs than AODD annually.
- For long-distance, continuous transfer, choose EODD. For explosion-proof or **low-noise areas, AODD is also an option.
★ Conclusion: Hybrid EODD + AODD Configuration for Best Results ★
After assessment, the customer is advised to use 2" AODD pumps for intermittent transfer and EODD for long-duration, high-flow stations, reducing energy consumption, noise, and leak risk based on application.
➤ Learn More: Recommended Product –
QUANTM EODD Electric Diaphragm Pumps