Airlock: Air only Diverter Valve for Pressure and Vacuum
What this video shows
This video explains an air only bypass valve used in pneumatic conveying pressure and vacuum circuits. It can redirect or admit air during a system state change. It must not be treated as a powder diverter, and final selection requires the actual airflow, pressure and safe state.
What the footage shows
The footage presents the operating purpose and arrangement of an Airlock bypass valve in a pneumatic conveying air circuit.
Process challenge
A blower can require a controlled air path while a conveying route changes state, a receiver is isolated or a vacuum circuit needs relief. Stopping and restarting the blower is not always the intended control method.
Demonstrated solution
Airlock presents a valve that redirects air or admits relief air according to the circuit arrangement. The imported manufacturer description identifies lean phase pressure and vacuum duties and explicitly describes the handled medium as air only.
Technical overview
Key features
- •Air only flow path
- •Pressure and vacuum circuit examples
- •Bypass or relief function
- •Stainless steel and aluminium versions stated by the manufacturer
Benefits
- •Controlled air routing during a process state change
- •A visible alternative to switching the blower for every routing event
Typical applications
- •Pneumatic conveying blower bypass
- •Vacuum relief
- •Air unloading circuits
About this video
This video is about routing conveying air. The shown bypass valve is not presented as a product contact diverter for powder or granules.
What the valve does
In a vacuum circuit, a controlled opening can admit air and relieve the vacuum applied to a receiver or line. In a pressure circuit, a bypass route can release or redirect blower air while another valve changes the conveying path.
Airlock states that its BPV range is intended for lean phase pneumatic conveying air circuits in pressure and vacuum service. The manufacturer also names blower line unloading in water treatment as an example.
What the video can establish
The footage explains the intended circuit function and product arrangement. It does not establish airflow capacity, pressure loss, noise, leakage, switching time or suitability for a specific blower.
Data required for selection
- Airflow at each operating state.
- Positive pressure or vacuum at the valve.
- Temperature, humidity and possible carryover.
- Required switching time and failure position.
- Discharge location and noise control.
- Actuator, controls and proof of position.
Confirm the valve function on the process and instrumentation diagram. A bypass, relief valve and product diverter solve different problems even when their external appearance is similar.
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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