FSR

Project planning

4.322

FLEXWELL® Safety Pipe

Basic planning parameters

Determining the lengths

Example of a routing sketch with determination of the lengths for FSR 39/60

Determining the length

s

Section

Length

l1**

0.20

m

l2

0.40

m

R

e

f

e

r

e

n

c

e

s

i

z

e

l3

9.30

m

l4

12.80

m

l5

11.70

m

l6

0.15

m

l7**

0.20

m

l1

l2

l3

– lx for 2 x R = 0.6 m – (2 x 0.25 m) = – 0.50 m

Overall length

34.25 m

** Protruding length:

Wall duct

Worksheet FSR 4.300

Steel duct entries

Worksheet FSR 4.302

R

l

4

R

l6 l

7

l

5

Type

for a bending

for a 90° elbow

radius R* from

deduct from value l

x

FSR 13/ 25

0.3 m

l

x = – 0.12 m

FSR 30/ 48

0.5 m

l

x = – 0.21 m

FSR 39/ 60

0.6 m

l

x = – 0.25 m

FSR 48/ 71

0.6 m

l

x = – 0.25 m

FSR 60/ 83

0.7 m

l

x = – 0.30 m

FSR 75/107

0.9 m

lx = – 0.39 m

FSR 98/134

1.2 m

lx = – 0.52 m

FSR 127/175

1.5 m

lx = – 0.64 m

FSR 200/262

4.0 m

l

x = – 1.70 m

* Minimum bending radius R min. – generally done using a

mechanical bending device

.

04.05.2022 Subject to technical changes. Page 14