Product Overview
This is a local exhaust ventilation arm from Alsident: Alsident System 50 (50-8787-3-5). The product is a wall/ceiling mounted three-joint variant of the System 50 series with a working range of up to 1,660 mm and a tube diameter of Ø50 mm. System 50 is designed with anodized aluminium tubes and polypropylene (PP) joints.
Technical Description
Alsident System 50 (50-8787-3-5) uses extraction arms with anodized aluminium tubes (external diameter Ø50 mm) and connecting joints made of impact and chemical resistant polypropylene. The series specifies a recommended airflow of 45–85 m³/h and an operating temperature range of −15 °C to +90 °C. The arms can be mounted on a wall or ceiling in the depicted three-joint configuration.
Materials and Maintenance
- Tubes: Anodized aluminium, surface 10 μ (specified by manufacturer).
- Joints and moving parts: Polypropylene (PP), impact and chemical resistant.
- Seals: All O-rings are maintenance-free.
- Fasteners: Wire suspensions, springs, and screws made of acid-resistant stainless steel (AISI 316L) according to manufacturer's documentation.
- Rivets: Acid-resistant POP® rivets for increased durability in aggressive environments.
- Integrated functions: Built-in valve which, when open, is outside the airflow to maintain maximum throughput.
- Cleaning: The arms can be disassembled without tools for cleaning.
Documentation
The manufacturer's technical information and specifications are available in Alsident's datasheet:
View datasheet from manufacturer
Typical Applications
The product is specified by the manufacturer for use in connection with light pollution control.
Specifications
- Manufacturer: ALSIDENT
- Article number: 50-8787-3-5 (three-joint wall/ceiling variant based on base article 50-8787-3)
- Working length / working range: 430 - 1660 mm
- Tube diameter: Ø50 mm (external)
- Recommended airflow: 45–85 m³/h
- Operating temperature range: −15 °C to +90 °C
- Tube material: Anodized aluminium (surface 10 μ)
- Joint material: Polypropylene (PP)
- Colour codes for joints: -5 = white, -4 = red, -050 = black
- Components: All components RoHS compliant (specified by manufacturer)
- Additional features: Maintenance-free O-rings, integrated valve, acid-resistant screws (AISI 316L), acid-resistant POP® rivets, option for protective netting on hoods, detachable without tools
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