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Non-negative Pressure

Non-negative pressure frequency conversion water supply equipment, also called as intelligent pipe network pressure-superposed water supply equipment or pipe network pressure-superposed water supply equipment, is mainly composed of constant voltage frequency conversion and non-negative pressure device. The non-negative pressure device consists of pressure compensation unit, pressure transmitter, microcomputer control unit and pipeline system. If the equipment is tandem connected to municipal pipeline networks of tap water with underpressure, the equipment will detect the outlet pressure via the pressure sensor. By comparing the detected value and the set value, it calculates the pressure value to be increased thus to determine the input of water pump and output frequency of frequency converter and achieve constant voltage. Non-negative pressure frequency conversion water supply equipment has taken advantage of the original pressure in municipal pipe rather than producing negative pressure on the pipe. By replacing old-fashioned water tank with non-negative pressure tank and stainless steel water tank, secondary pollution is reduced.
 
Specification:
Name
Powerkw
In/outlet
DN
Non-pressure tank
mm
Pressure tank
L
Capacity
3.0
6.0
8.0
10.0
FW24-001
0.55
DN50-DN80
ф600×1300
50
 
 
 
Hydraulic Headm
28
26
24
20
FW24-002
0.75
DN50-DN80
ф600×1300
50
38
34
32
27
FW24-003
1.1
DN50-DN80
ф600×1300
50
56
52
48
41
FW24-004
1.5
DN50-DN80
ф600×1300
50
74
70
64
55
FW24-005
2.2
DN50-DN80
ф600×1300
50
114
104
95
85
FW24-006
3.0
DN50-DN80
ф600×1300
50
152
140
129
115
Name
Powerkw
In/outlet
DN
Non-pressure tank
mm
Pressure tank
L
Capacity
12.0
16.0
20.0
FW24-007
1.1
DN65-DN80
ф600×1300
50
 
 
 
 
Hydraulic Headm
29.5
27
24
FW24-008
2.2
DN65-DN80
ф600×1300
50
50
45
40
FW24-009
2.2
DN65-DN80
ф600×1300
50
60
54
48
FW24-010
3.0
DN65-DN80
ф600×1300
50
80
73
65
FW24-011
4.0
DN65-DN80
ф600×1300
50
100
92
81
FW24-012
4.0
DN65-DN80
ф600×1300
50
120
111
92
FW24-013
5.5
DN65-DN80
ф600×1300
50
141
130
113
Name
Powerkw
In/outlet
DN
Non-pressure tank
mm
Pressure tank
L
Capacity
24.0
32.0
FW24-014
2.2
DN80
ф600×1300
80
 
 
 
 
 
Hydraulic Headm
25
22
FW24-015
3.0
DN80
ф600×1300
80
38
34
FW24-016
4.0
DN80
ф600×1300
80
52
46
FW24-017
5.5
DN80
ф600×1300
80
65
58
FW24-018
5.5
DN80
ф600×1300
80
78
70
FW24-019
7.5
DN80
ф600×1300
80
104
94
FW24-020
11
DN80
ф600×1300
80
131
118
 
 

 

 

 

 

 

 

 

 

 

Name
Powerkw
In/outlet
DN
Non-pressure tank
mm
Pressure tank
L
Capacity
40.0
FW24-021
3.0
DN100
ф600×1300
100
 
 
 
 
 
Hydraulic Headm
28
FW24-022
4.0
DN100
ф600×1300
100
34
FW24-023
5.5
DN100
ф600×1300
100
51
FW24-024
7.5
DN100
ф600×1300
100
69
FW24-025
11
DN100
ф600×1300
100
86
FW24-026
11
DN100
ф600×1300
100
104
FW24-027
15
DN100
ф600×1300
100
121
FW24-028
15
DN100
ф600×1300
100
138
FW24-029
18.5
DN100
ф600×1300
100
156

 

 

 

 

 

 

 

 

 

 

 

 

 

Name
Powerkw
In/outlet
DN
Non-pressure tank
mm
Pressure tank
L
Capacity
50.0
60.0
70.0
FW24-021
3.0
DN100-DN125
ф800×1500
100
 
 
 
 
 
 
 
Hydraulic Headm
20
19
18
FW24-022
4.0
DN100-DN125
ф800×1500
100
24
23
22
FW24-023
5.5
DN100-DN125
ф800×1500
100
40
38
36
FW24-024
7.5
DN100-DN125
ф800×1500
100
48
46
44
FW24-025
11
DN100-DN125
ф800×1500
100
63
61
58
FW24-026
11
DN100-DN125
ф800×1500
100
71
69
66
FW24-027
15
DN100-DN125
ф800×1500
100
87
84
80
FW24-028
15
DN100-DN125
ф800×1500
100
95
92
88
FW24-029
18.5
DN100-DN125
ф800×1500
100
111
107
102
FW24-030
18.5
DN100-DN125
ф800×1500
100
119
115
110
FW24-031
22
DN100-DN125
ф800×1500
100
135
130
124
FW24-032
22
DN100-DN125
ф800×1500
100
143
138
132

 

 

 

 

 

 

 

 

 

 

 

Name
Powerkw
In/outlet
DN
Non-pressure tank
mm
Pressure tank
L
Capacity
80.0
100.0
120.0
130.0
FW24-033
4.0
DN100-DN150
ф1000×2000
100
 
 
 
 
 
Hydraulic Headm
18
16
14
13
FW24-034
5.5
DN100-DN150
ф1000×2000
100
25
23
21
20
FW24-035
7.5
DN100-DN150
ф1000×2000
100
36
33
29
26
FW24-036
11
DN100-DN150
ф1000×2000
100
51
47
43
40
FW24-037
15
DN100-DN150
ф1000×2000
100
62
56
50
46
FW24-038
18.5
DN100-DN150
ф1000×2000
100
76
70
64
60
FW24-039
18.5
DN100-DN150
ф1000×2000
100
87
80
71
66
FW24-040
22
DN100-DN150
ф1000×2000
100
101
94
85
80
FW24-041
30
DN100-DN150
ф1000×2000
100
114
105
95
88

 

 

 

 

 

 

 

 

 

 

Name
Powerkw
In/outlet
DN
Non-pressure tank
mm
Pressure tank
L
Capacity
140.0
160.0
200.0
FW24-042
5.5
DN150
ф1800×2500
200
 
 
 
 
 
Hydraulic Headm
17
16
10
FW24-043
7.5
DN150
ф1800×2500
200
22
21
16
FW24-044
11
DN150
ф1800×2500
200
36
32
22
FW24-045
15
DN150
ф1800×2500
200
47
44
36
FW24-046
18.5
DN150
ф1800×2500
200
60
55
41
FW24-047
22
DN150
ф1800×2500
200
72
67
55
FW24-048
30
DN150
ф1800×2500
200
87
80
62
FW24-049
30
DN150
ф1800×2500
200
100
92
76