Use:vertical woltman water meter is a kind of woltman(screw wing)water meter.Screw wing water meter,also known as Woltmann water meter, is a kind of speed water meter,which is suitable for use in large-diameter pipeline.It is characterized by large flow capacity and small pressure loss.
2.Wide range,suitable for occasions with large flow change.
3.Full flow detection,high measurement accuracy.
4.Dry magnetictransmission structure ensures that the counter is clean and clear.
5.The six digit enlarged digital wheel displays the reading,and the reading is clearer.
6.The detachable metering movement structure is convenient for maintenance.
7.Internal adjustment structure to prevent private meter adjustment.
8.Built in stainless steel filter screen effectively protects the measuring mechanism.
9.The high wear-resistant bearing system(gem bearing for aviation instrument+high wear-resistant cemented carbide shaft)ensures the long-term stability and reliability of the product and significantly improves the maximum flow of the product.
10.Stainless steel fasteners and epoxy resin powder are applied inside and outside the shell to maximize rust prevention and prolong the service life of the product;Optional anti prying protective cover(prevent users from disassembling the movement without permission,damaging or changing the measuring mechanism,and play the role of anti-theft water to thegreatest extent).
Technical parameter:
DN (mm)
Flow range
Maximum flow Q4
Common flow
Q3
Boundary flow Q2
Minimum flow Q1
Minimum
reading
Maximum
reading
Q3/Q1
m³/h
m³
40
50/200
50
40
1.28/1.25
0.8/0.2
0.0001
999, 999
50
50/200
50
40
1.28/1.25
0.8/0.2
0.0001
999, 999
80
50/200
80
63
2.0/2.0
1.26/0.32
0.0001
999, 999
100
50/200
125
100
3.2/3.12
2.0/0.5
0.0001
999, 999
150
50/200
312
250
8.0/7.88
5.0/1.25
0.0001
999, 999
200
50/200
500
400
12.8/12.5
8.0/2.0
0.0001
999, 999
Overall dimension and weight:
DN
(mm)
Length
Height
Connection flange
Reference weight
L
(mm)
H
(mm)
h
(mm)
Flange
outer
diameter
Center diameter of bolt hole D1(mm)
Number of
connecting bolts
kg
40
280
228
85
150
110
4*M16
11.6
50
280
228
85
165
125
4*M16
12
80
370
282
103
200
160
8*M16
21.3
100
370
303
114
220
180
8*M16
25
150
500
430
155
285
240
8*M20
68.2
200
500
505
190
340
295
12*M20
99.8
A.The maximum allowable error of a low area(Q1≤Q<Q2)is±5%
B.When the water temperature is≤30℃,
the maximum allowable error in the high area(Q2≤Q≤Q4)is±2% When the water temperature is>30℃,
the maximum allowable error in the high area(Q2≤Q≤Q4)is±3%
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