Every industry has unique pumping requirements, and choosing the wrong pump can cost time, money, and efficiency.
At Sando Rotary Equipment Pvt. Ltd., we help businesses pick the right pump for the job. Below, we’ve answered the most common questions people search for online when buying pumps.
Q1: Which pump is best for chemical transfer?
For safe and efficient chemical transfer—especially for acids, solvents, and corrosive liquids—Air Operated Double Diaphragm (AODD) pumps are our top recommendation.
Why? They can handle aggressive fluids without damage, work in explosive zones without sparks, and are easy to maintain.
Popular in: Chemical plants, paint manufacturing, pharma industries.
Q2: Which pump is good for high-viscosity liquids?
If you’re moving honey, molasses, heavy oils, or thick slurries, we recommend AODD pumps or screw pumps.
AODD pumps are versatile, portable, and can also handle solids.
Screw pumps are great for continuous high-volume, high-viscosity flow.
Q3: What is the best pump for abrasive slurry?
Abrasive slurry (mining, ceramics, wastewater sludge) can quickly wear down impellers and gears. AODD pumps with reinforced diaphragms and wear-resistant materials are ideal.
Why? No tight clearances, low RPM operation, and solids-handling ability.
Q4: Which pump should I use for food and beverage?
For dairy, sauces, syrups, chocolate, or drinks with fruit pulp, food-grade AODD pumps with sanitary fittings are best.
Why? Gentle pumping to protect texture, easy disassembly for cleaning, and compliance with food hygiene standards.
Q5: Best pump for flammable or explosive liquids?
When safety is critical, AODD pumps running on compressed air are the safest choice.
Why? No electricity means no ignition risk; ideal for solvents, fuels, and alcohols.
Q6: Pump for intermittent or stop-start operations?
If your pump will start/stop often, or may run dry, AODD pumps are unbeatable.
Why? They handle dry running without damage, self-prime easily, and restart instantly when air supply resumes.
Q7: Which pump is best for dewatering or emptying tanks?
For removing water, sludge, or chemicals from tanks and pits, AODD pumps are perfect.
Why? They’re portable, self-priming, and can handle solids or debris in the liquid.
Q8: What pump should I choose for pharmaceutical liquids?
For sterile, high-purity fluids, sanitary AODD pumps made from stainless steel or PTFE are recommended.
Why? No contamination risk, easy to clean, and precise transfer without damaging sensitive compounds.
Q9: Which pump is good for paint and coatings?
Paint, varnish, and coating materials can be thick and shear-sensitive. AODD pumps ensure smooth transfer without altering product quality.
Q10: Pump for long-distance liquid transfer?
If you need to move liquid over long pipelines, multi-stage centrifugal pumps work well for clean water, but for chemical or viscous transfer, AODD pumps are safer and more flexible.
Why Sando Rotary Equipment Pvt. Ltd. Should Be Your Pump Partner
Wide selection of pumps for every industry
Expertise in matching pump type to application
Genuine spares and reliable after-sales service
Proven track record across chemical, food, pharma, power, and wastewater sectors
📞 Ready to find your perfect pump?
Contact Sando Rotary Equipment Pvt. Ltd. today and let us recommend the right solution for your process.

Sando Editorial Team
Pump technology experts at Sando Rotary Equipments