Pipes And Pipe Connections; Branches And Bends - Siemens FDA2 Series Planning, Mounting

Pipe system for aspirating smoke detectors
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3.4.1 Pipes and pipe connections

3.4.2 Branches and bends

A6V11783979_en--_a
Pipe
Pipe connection
90° bend
T-piece
System description
Pipe system components
Piping for air aspiration
Outer diameter: 25 mm (1 inch)
Inner diameter: 21 mm
Pipes can be trimmed to the required length
using a pipe cutter
Pipes can be connected using glued pipe
connections
Material: Typically PVC or ABS depending on
the ambient conditions
For connecting two pipes with an outer
diameter of 25 mm (1 inch)
The pipes are glued to the pipe connection
Material: Typically PVC or ABS depending on
the ambient conditions
For changes of direction in the pipe system
90° bend angle
Flange for holding the pipe at both ends
The pipes are glued to the bend
Recommendation: Use a bend with the largest
possible radius, e.g., 70 mm
Material: Typically PVC or ABS depending on
the ambient conditions
For branches in the pipe system
Flange for holding the pipe at all three ends
The pipes are glued to the T-piece
Material: Typically PVC or ABS depending on
the ambient conditions
3
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