Airlock: Field-Proven Diverter Valves for Pneumatic Conveying Applications
What this video shows
This video compares Airlock drum type diverter arrangements for routing powders and granules between pneumatic conveying lines. It helps identify the flow path and valve family. Leakage, wear, particle damage and cleanability still require project evidence.
What the footage shows
The video presents DTD, SDTD and SDTD C diverter arrangements and illustrates how a dry material stream is directed between connected conveying lines.
Process challenge
A pneumatic conveying system may need to send one source to alternate destinations or combine alternate sources into one route. The diverter has to change the material path while respecting pressure, leakage, wear, cleaning and particle integrity requirements.
Demonstrated solution
Airlock presents drum type valves for powders, pellets, kibbles and granules. The footage explains the product families and routing concept. It does not provide comparative leakage, wear or degradation measurements.
Technical overview
Key features
- •Double drum type diverter
- •Single drum type diverter
- •Diverting and converging configurations
- •Stainless steel and aluminium versions stated by the manufacturer
Benefits
- •Visual comparison of several routing arrangements
- •Identification of the moving flow path and connected branches
Typical applications
- •Pressure or vacuum pneumatic conveying
- •Dry powder and granule routing
- •Multi destination conveying systems
About this video
The video presents several Airlock drum type diverter valves for changing the path of dry material in a pneumatic conveying line.
Diverting and converging duties
A diverter sends one incoming stream to alternate destinations. A converging arrangement connects alternate inlets to one downstream route. Airlock shows double drum and single drum configurations for these duties.
The imported description names powders, pellets, kibbles and granules. It also states that stainless steel and aluminium versions are available. These are portfolio statements, not proof that every configuration is compatible with every material.
Engineering questions raised by the footage
- Which line is pressurized during switching.
- Whether switching occurs with air only or with product present.
- How much internal leakage is acceptable.
- Whether product can lodge in the moving interface.
- Which wear, cleanability and particle damage limits apply.
- Which position is safe after loss of power or air.
How to compare a proposed valve
Provide the supplier with material data, conveying pressure, line size, temperature, routing logic and cleaning requirements. Request the current section drawing, seal concept, actuator sizing, switching logic, leakage basis and maintenance procedure.
The video is useful for understanding the flow path. A representative material test or operating reference is needed when degradation, smearing, abrasion or contamination is critical.
From video review to acceptance plan
Turn each important observation into a requirement that can be checked. Define the material, operating state and measurable result. Record who supplies the evidence and whether it comes from a drawing, calculation, certificate, material trial or site acceptance test. Include normal production, startup, shutdown, cleaning and credible fault conditions. This approach preserves the discovery value of the footage while preventing a visual impression from becoming an unsupported specification.
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