Dimensions/weight (approximate) in mm (inches) and kg (lbs) Pipeline ancillaries Disc, split disc and wafer check valves
10
A
End elevation
B
Size
A Socket weld
A Screwed
B A/F
Weight
50 (1.97) 55 (2.17) 67 (2.64) 100 (3.94)
51 (2.01) 57 (2.24) 68 (2.68) 100 (3.94)
34 (1.34) 41 (1.61) 50 (1.97) 80 (3.15)
0.2 (0.44) 0.3 (0.66)
½"
¾"
0.5 (1.1) 2.0 (4.4)
1"
1¼" to 2"
Kv values Size
½ "
¾ "
1"
1¼"
1½"
2"
For conversion: Cv (UK) = Kv x 0.963 Cv (US) = Kv x 1.156
Kv
4.4
7.5
12
30
35
35
Opening pressures in mbar (mpsi) Differential pressures with zero flow for standard and high temperature springs. Flow direction All sizes 25 (0.36 psi) 22.5 (0.33 psi) 20 (0.29 psi)
7.5.15
Where lower opening pressures are required, valves without springs can be installed in vertical pipes with bottom-to-top flow. Without spring and flow direction Size ½ " ¾ " 1" 1¼" to 2"
3.0 (0.044)
2.5 (0.036)
4.0 (0.058)
6.5 (0.094)
10.5 24
mbar
Heavy duty springs approximately 700 mbar (10.2)
TI-P601-18 CMGT Issue 14
Page 4 of 5
DCV41, DCV41 Food+ Austenitic Stainless Steel Disc Check Valve
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