Dimensions/weights (approximate) in mm and kg Size A B C Pipeline ancillaries Disc, split disc and wafer check valves
10
D
E
Weight
DN15
64
22
15
48
25.0
0.25
DN20
73
27
20
61
31.5
0.45
DN25
85
33
25
71
35.5
0.67
DN32
95
41
32
81
40.0
0.85
DN40 DN50 DN65 DN80 DN100
106
49
40
91
45.0
1.12
119
59
50
105
56.0
1.75
149
75
65
125
63.0
2.75
158
90
80
141
71.0
3.58
189
111
100
164
80.0
5.39
Kv values DN 15 20 25 32 40 50 65 80 100 Kv 4.4 7.5 12 17 26 39 58 86 158 For conversion: Cv (UK) = Kv x 0.963 Cv (US) = Kv x 1.156 Opening pressures in mbar Differential pressures with zero flow for standard and high temperature springs. Flow direction
DN 15 20 25 32 40 50 65 80 100 25 25 25 27 28 29 30 31 33
7.5.21
22.5 22.5 22.5 23.5 24.5 24.5 25 25.5 26.5 20 20 20 20 20 20 20 20 20
B D A
Where lowest opening pressures are required, valves without springs can be installed in vertical pipes with bottom-to-top flow. Without spring 2.5 2.5 2.5 3.5 4 4.5 5 5.5 6.5
E
Heavy duty springs approximately 700 mbar
10.5 30
C
TI-P134-26 CMGT Issue 10
Page 4 of 5
DCV6 Disc Check Valve
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