AODD Pump Solutions for Industrial Excellence
AODD Pump Solutions for Industrial Excellence
40+ Years of Proven Performance Across Diverse Industries
Real-World Solutions to Complex Fluid Handling Challenges
Over four decades, we have engineered and deployed thousands of Air-Operated Double Diaphragm (AODD) pump solutions across India's most demanding industries. Our expertise lies not just in manufacturing quality pumps, but in understanding the unique challenges faced by each sector and delivering tailored solutions that drive operational efficiency, reduce costs, and ensure reliability.
Industry-Specific Solutions
How We Solve Real Problems in Different Sectors
Handling Corrosive and Viscous Chemical Transfers
Transferring hazardous materials safely and efficiently
The Challenge
- Corrosive acids and alkalis damage standard pumps within months
- Viscous paint additives clog centrifugal pumps, requiring constant maintenance
- Temperature fluctuations (30°C to 80°C) cause material degradation
- Hazardous material spillage risks from pump failures
- High downtime costs during equipment replacements
- Need for explosion-proof equipment in classified areas
Our Solution
- PTFE-lined AODD pumps resist all common industrial chemicals
- Positive displacement eliminates clogging issues
- Flexible diaphragm design handles viscosity changes 10-10000 cP
- No internal metal parts exposed to harsh chemicals
- Intrinsically safe for hazardous area classification (Zone 1/2)
- Extended intervals between servicing (12-18 months)
Documented Results
Hygienic Fluid Transfer Without Product Contamination
Meeting food safety standards while maintaining product integrity
The Challenge
- Centrifugal pumps damage viscous products (syrups, oils, sauces)
- Pulsating flow causes product degradation and foaming
- Metal particles from pump wear contaminate food products
- Strict FDA and FSSAI compliance requirements
- Complex cleaning protocols between batches (downtime loss)
- Shear-sensitive products require gentle handling
Our Solution
- Smooth, steady positive displacement flow with minimal pulsation
- All wetted parts in 316L stainless steel and food-grade elastomers
- No mixing with external air - maintains product integrity
- CIP (Clean-In-Place) compatible design for quick sanitation
- Reversible operation for rapid system purging
- NSF and EHEDG certification compliance ready
Documented Results
Precise Dosing and Sterile Operations
Critical precision for dosage-sensitive processes
The Challenge
- GMP compliance requires precise flow rates and documentation
- Sterile transfer without contamination or exposure
- Complex formulations need consistent mixing ratios
- Recurring regulatory audits with stringent standards
- Temperature-sensitive compounds degrade with heat from friction
- Zero tolerance for product loss or batch rejection
Our Solution
- AODD pumps deliver consistent flow rates within 5% variance
- Modular design allows sterile cartridge replacements
- Minimal heat generation - ideal for temperature-sensitive drugs
- Complete traceability and batch documentation capability
- Compatible with pharmaceutical-grade materials only
- Third-party certification and validation support provided
Documented Results
High-Pressure Operations in Harsh Environments
Extreme conditions offshore and onshore
The Challenge
- Extreme pressure variations (0.5 - 8 bar) in offshore operations
- Abrasive sand particles in crude oil damage standard pumps
- Corrosive saltwater environment degradation
- Remote locations require minimum maintenance and high reliability
- Emergency shutdown capability for safety compliance
- Vibration and temperature swings cause seal failures
Our Solution
- Heavy-duty construction rated for 8+ bar sustained pressure
- Hardened seats and seals resist sand particle abrasion
- Duplex stainless steel materials for saltwater resistance
- Wide capacity range (10 LPM to 500+ LPM) for scalability
- Emergency pilot air line for instant shutdown
- Modular design allows quick offshore repairs
Documented Results
Slurry and Abrasive Fluid Handling
Heavy-duty solutions for harsh mineral extraction processes
The Challenge
- High-density slurries (up to 60% solids) clog centrifugal pumps
- Abrasive mineral particles (sand, coal, ore) cause rapid wear
- Unpredictable solids content variation batch to batch
- Continuous operation 24/7 requires extreme reliability
- Dust and moisture-laden air causes cavitation
- Cost of emergency replacements affects mining timeline
Our Solution
- Positive displacement handles up to 70% solids without clogging
- Hardened elastomers and coated internal surfaces resist abrasion
- Self-priming capability handles moisture-laden air
- Reversible operation for blockage clearing and backflushing
- Air filter upgrade options prevent moisture ingestion
- Standardized parts reduce spares inventory complexity
Documented Results
Chemical Dosing and Wastewater Transfer
Environmental protection through reliable fluid management
The Challenge
- Variable pH chemicals require corrosion-resistant equipment
- Precise chemical dosing (coagulants, disinfectants) critical for water quality
- Activated sludge with variable density requires gentle handling
- Continuous operation with inconsistent feed consistency
- Environmental compliance and discharge regulations
- Power constraints - need for efficient pneumatic operation
Our Solution
- Corrosion-resistant materials for chemical treatment plant environment
- Precise metering enables accurate dosing within 2% variance
- Handles sludge and suspended solids without air entrainment
- Energy-efficient - consumes 30% less compressed air than alternatives
- Easy flow rate adjustment without replacement
- Compatible with all common treatment chemicals
Documented Results
How We Help Your Industry
Our Comprehensive Support Model Across 40+ Years
Custom Application Analysis
Deep technical assessment of your specific fluid properties, operating conditions, and environmental factors to select optimal pump configuration.
Engineered Solutions
Tailored AODD pump systems designed for your exact requirements including size, material compatibility, pressure rating, and flow specifications.
Installation & Commissioning
On-site technical expertise ensuring proper integration, testing, and validation that your system meets all specified performance parameters.
Preventive Maintenance
Structured maintenance programs with scheduled inspections, parts optimization, and performance monitoring to maximize equipment life.
Spare Parts Logistics
Strategic inventory of critical replacement parts positioned across India for rapid deployment and minimal operational disruption.
Technical Training
Comprehensive operator and maintenance team training covering system operation, troubleshooting, and preventive care best practices.
Performance Optimization
Continuous monitoring and optimization recommendations to improve efficiency, reduce energy consumption, and extend component life.
24/7 Emergency Support
Rapid response technical support available around the clock for emergency situations, ensuring minimal production loss and quick resolution.
Standard Industry Applications
Proven Performance Across Diverse Use Cases
Chemical Transfer
Acids, alkalis, solvents, and specialty chemicals with full PTFE lining protection. Handles corrosion resistance requirements and hazardous material compliance.
Adhesive & Sealant Metering
High-viscosity adhesives and sealant materials without degradation. Precise dosing for consistent product quality in manufacturing.
Ink & Dye Circulation
Shear-sensitive inks and dyes with no product degradation. Pulsation-free operation preserves color consistency and application properties.
Paint Transfer & Circulation
Maintains paint homogeneity without foaming or aeration. Ideal for circulation loops in paint manufacturing and application systems.
Dairy & Beverage Transfer
Gentle handling of milk, juices, and other food liquids. CIP-compatible design for rapid sanitation between product batches.
Coating Application
Protective coatings, primers, and finishes with consistent flow rates. Spraying systems benefit from pulsation-free delivery.
Dewatering Operations
High-solids slurry handling for mining and construction. Self-priming for difficult suction lift conditions.
Polymer Dosing
Water treatment and wastewater polymer injection with precise metering. Low shear transfer preserves polymer efficacy.
Why Industries Trust Our AODD Pumps
Technical Advantages Across All Application Types
No Moving Parts in Fluid Path
Positive displacement mechanism eliminates impellers and rotating elements that create wear particles, contamination sources, and failure points.
Self-Priming Capability
Handles suction lift up to 3 meters, ideal for applications where pump placement is above fluid source level.
Pulsation-Free Operation
Dual diaphragm design ensures smooth, consistent flow without pressure spikes that damage sensitive fluids or require surge suppressors.
Handles Abrasive Fluids
Slurries with suspended solids pass through without damaging pump internals. No erosion-prone impeller blade surfaces.
Reversible Operation
Allows forward and reverse flow without mechanical modifications, useful for backflushing, drainage, and clearing blockages.
Intrinsically Safe
Air-operated design with no electric motor eliminates ignition sources, meeting explosive atmosphere classification requirements (Zone 1/2).
Low Heat Generation
Air operation produces minimal frictional heat, ideal for temperature-sensitive products like pharmaceuticals and specialty chemicals.
Extended Valve Life
Pneumatic actuation with modular cartridge design simplifies maintenance and reduces per-repair costs compared to mechanical alternatives.
Sando Editorial Team
The Sando Editorial Team consists of pump technology experts and engineers at Sando Rotary Equipments, dedicated to sharing insights and innovations in the fluid handling industry.
About Sando
Leading manufacturer of industrial pumps and valves for diverse industries worldwide.
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