Home » Products » Spare Parts of Water Meter » Non return valve
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Structure & Application
1. Non Return Valve is made up of body, base, insert, spring and seal washer.
2. Installed at the outlet pipe of DN15~DN50 Water meter.
3. Avoiding to lose accuracy after closing the faucet.
Working Conditions
Water temperature: ≤40℃ for cold water meter.
Water pressure: ≤1.6MPa.
Head loss Curve
Working Conditions
Water temperature: 40 for cold water meter. Water pressure: 1.6MPa.Dimensions and Weights
Structure View
1. body 2. base 3. insert 4. Spring 5. Seal washer
GeneralAssembly
Drawing No.ZN2.353.009
ZN2.353.005
ZN2.353.006
ZN2.353.023
ZN2.353.024
ZN2.353.007
ZN2.353.052
Nominal Diameter
DN15
DN20
DN25
DN32
DN40
DN50
Parameter diameter (mm)
L
19
24
30
38.5
42
50
50
L1
3
7
8
8
8
10
10.5
D
19.7
24.7
32
32
36.5
47
60
d
18
22
28.5
28.5
32
40
51
Valveweight(g/1PCS)
3.2
6.4
13.2
16.5
19.2
35.4
52.8