Specific Fitting Factors According To Dn And Material - Burkert 8623 Instructions De Service

9.2

Specific Fitting factors according to DN and Material

DN
mm inches
15
20
25
32
40
50
65
80
100
DN
mm inches
15
20
25
32
40
50
65
80
100
Table 2: Specific Fitting Factors
The K Factor (specific fitting factor) is measured with water at 20°C and with a
flow speed of 2m/s on an approved calibration system.
This K Factor is dependant on the installation conditions. Repeatability is better
than ± 0.4%.
with Bürkert standard fittings with specific dimensions (see data
sheets 8025, 1500, 1501.
with Bürkert welded supports and saddle fittings under reference
conditions (medium and pipe dimensions). If there are deviations
from these conditions, you can change the above K Factors.
Please request consultation from Bürkert.
NOTE
Conversion to Imperial gallons: K (pulse / Imp gal) = 4.55*K(pulse / l)
28 - 8623
Specific Fitting factor K [pulse/l]
Metal PVC
½ 117.6 139.8
¾ 68.8 74.4
1 42.7 46.6
1 ¼ 25.4 28.6
1 ½ 17.73 17.61
2 11.46 10.18
2 ½ 7.01
3 5.04 4.56
4 2.85 2.83
Specific Fitting factor K [pulse/Imp gall.]
Metal PVC
½ 445.2 529.2
¾ 260.4 281.6
1 161.6 176.4
1 ¼ 96.1 108.3
1 ½ 67.11 66.66
2 43.38 38.54
2 ½ 26.54 27.63
3 19.08 17.26
4 10.79 10.71
PP PVDF
155.1 131.6
88.1
50.6
34.8
19.6
12
7.3 7.43
4.64
2.88
PP PVDF
587.1 498.2
335.5 299.4
191.5 186.2
131.7 117.7
74.19 65.49
45.42 36.95
28.13 25.55
17.56 16.98
10.9
79.1
49.2
31.1
17.3
9.76
6.75
4.48
2.8
10.6