Burkert 8021 Notice D'utilisation page 19

4.4 Specific Factors K according to DN and Material type S030 Inline
DN
mm inch Stainless-steel
15 1/2
20 3/4
25 1
32 1 1/4
40 1 1/2
50 2
DN
mm inch Stainless-steel
15 1/2
20 3/4
25 1
32 1 1/4
40 1 1/2
50 2
Fig. 5 K-Factors classified according to DN and Material - Fitting type S030 Inline
The K-factor (specific fitting factor) has been measured on a certified calibration rig
with water at 20°C and a flow velocity of 2 m/s.This K-factor depends upon the
installation conditions.Repeatability is better than ±0.4%.
Note: Conversion to Imperial Gallons : K (impulse/Imp gal) = 4,55 x K (impulse/ l)
Fig. 6 Principle and Mounting of the flow sensor type 8030 Inline
8021
PULSE DIVIDER TYPE 8021
Specific Fitting factor K [puls/l]
Brass
112,2 112,9
65,82 65,69
48,82 49,41
31,66 27,12
19,74 18,47
11,33 10,65
Specific Fitting factor K [puls/US gal]
Brass
424,8 427,4
249,2 248,7
184,8 187,0
119,8 102,7
74,7 69,9
42,9 40,3
-19-
PVC
107,6 112,9
76,14 79,10
53,93 56,72
28,49 30,04
17,28 18,44
10,07 10,69
PVC
407,2 427,6
288,2 299,4
204,1 214,7
107,8 113,7
65,4 69,8
38,1 40,5
Fitting
S030 Inline
PP PVDF
112,9
79,31
57,17
31,49
18,88
10,71
PP PVDF
427,6
299,8
216,1
119,0
71,4
40,5
Type SE30