How the VA-RSA works.
A complete air distribution wall behind the shooter that pushes the air like a piston along the range to the bullet trap, so propellant fumes do not come back.
Applications: indoor firing ranges for police, municipalities and shooting clubs (p. 2). In the Netherlands the data sheet lists the A7 building complex and the police in Borne as Krantz references (p. 5).
Krantz, Displacement outlet for indoor firing ranges VA-RSA, DS 4168 E 03.2014.
Smoke test
Airflow in the Krantz lab.
A real smoke test in the Krantz flow laboratory: this is how air leaves the VA-RSA.
Technical data VA-RSA
- Max. ΔT cooling
- stable piston flowp. 4
- Volume flow (references)
- projects approx. 8,000 – 40,000 m³/hp. 5
Krantz, Displacement outlet for indoor firing ranges VA-RSA, DS 4168 E 03.2014.
Page numbers are PDF pages of the data sheet.
Download documents
Air
| Property | Value · Source |
|---|---|
| Air velocity | gemiddeld over de schietbaan min. 0.25 m/s; afhankelijk van wapen/munitie/schotfrequentie tot max. 0.35 m/s p. 2 |
| Max. ΔT cooling | stable piston flow at a temperature difference of up to approx. ±4 K supply – room p. 4 |
| Volume flow (references) | projects approx. 8,000 – 40,000 m³/h p. 5 |
Design
| Property | Value · Source |
|---|---|
| Sizes | made to measure for the architecture of the firing range (width/height/depth per project) p. 4 |
| Materials and finish | discharge panels galvanised sheet steel; post-and-rail structure mild steel; visible parts powder-coated in RAL colour of choice p. 4 |
| Options and versions | adjustable linear outlets (slot outlets) in the panels; windows/doors with air-distributing reveals; modular system with separate boxes p. 2 |
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