👉 It is a continuous negative-pressure conveying system that moves powders and granules over short to medium distances. By maintaining vacuum inside the pipeline, it ensures dust-free transfer, operator safety, and reliable performance.
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Dilute Phase Vacuum Conveying System
Dilute Phase Vacuum Conveying System
Flexible, Clean & Reliable Powder Transfer Over Distances
Orchid’s Dilute Phase Vacuum Conveying Systems are designed for continuous and dust-free conveying of powders and granules using negative pressure. Unlike compact powder transfer systems meant for batch operations, this solution is ideal for medium-distance transfer, multi-point feeding, and flexible routing through pipelines.
Working Principle
The system maintains a vacuum inside the conveying pipeline. As material is introduced from hoppers, bag dump stations, or silos, the air stream carries it at high velocity toward a receiving vessel. At the receiver, a filter system separates the material from the air before discharging it into the next process step.
👉 Because of the negative pressure, any leakage draws air inward — ensuring dust-free and safe operation.
Key Features
- Continuous Conveying – Reliable medium-distance transfer up to 100m.
- Flexible Layouts – Works with bends, vertical lifts, and space-restricted plants.
- Multi-Point Feeding – Can collect from multiple sources into one receiver.
- Dust-Free Operation – Closed pipeline prevents contamination and spillage.
- Low Maintenance – Minimal moving parts, long-life filters, and easy cleaning.
- Hygienic Design – Stainless-steel construction with CIP/SIP options.
- Safe for Flameproof Zones – Engineered for compliance in controlled environments.
Applications Across Industries
- Pharmaceuticals & Nutraceuticals → Transfer of excipients, nutraceutical powders, and formulation blends.
- Chemicals & Petrochemicals → Conveying additives, catalysts, and fine specialty powders.
- Food & Spices → Hygienic movement of sugar, starch, flour, cocoa, and spice blends.
- Brewery & Distilleries → Handling of malt, starch, and fermentation ingredients.
- Plastics & Polymers → Transport of pigments, resins, masterbatch powders, and small granules.
- Paints & Dyes → Dust-controlled handling of pigments and fillers.
- Power & Energy → Conveying of biomass powders and fly ash.
Benefits for Your Plant
- Cleaner and safer working environment with dust-free transfer
- Flexibility in plant layout with pipelines that can navigate bends and height changes
- Improved process integration with multi-source to single receiver options
- Hygiene compliance for food and pharma applications
- Reduced manual handling and improved operator safety
Technical Highlights
- Capacity Range: Few kg/hr – multiple tons/hr (continuous transfer)
- Conveying Distance: Up to 100m (short to medium range)
- Applications: Bulk powders like starch, flour, pigments, catalysts, biomass ash
- Construction: SS304/316L or carbon steel (depending on industry)
- Filter System: Pulse-jet cleaned cartridge receiver, optional HEPA
- Control System: PLC + HMI with batch or continuous conveying modes
- Special Add-ons: Multi-source feeding, flexible routing with bends & vertical lifts
❓ Final FAQ – Dilute Phase Vacuum Conveying System
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1. What is a Dilute Phase Vacuum Conveying System?
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2. How is vacuum conveying different from pressure conveying?
👉 Vacuum conveying is best for shorter distances, flexible layouts, and dust control at feed points since air always flows inward during leaks.
👉 Pressure conveying is preferred for longer distances and higher capacities. -
3. Can the system handle multiple feed or discharge points?
👉 Yes . A dilute phase vacuum system can be designed to draw material from several bag dump stations, silos, or hoppers and deliver it to a single receiving vessel — reducing manual handling and improving efficiency.
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4. Is it suitable for food and pharmaceutical powders?
👉 Absolutely. With stainless-steel construction, CIP/SIP options, and closed conveying lines, the system is ideal for clean environments. It can also be supplied with flameproof compliance for regulated plant zones.
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5. What about maintenance requirements?
👉 Maintenance is minimal since the system has very few moving parts. Filters are equipped with pulse-jet cleaning or can be supplied with HEPA options, ensuring reliable operation and long filter life.