4 … 72
MC • Edition 05.20 • Nº 279 663
4. Contents
1. Target group
1
2. Warnings
1
2.1 General warnings
1
2.2 Designated uses
2
2.3 Risks in the event of misuse
2
3. EU Approval/statement of conformity
2
4. Contents
4
5. Abbreviations
5
6. Features
6
6.1 Technical data
6
6.2 Nomenclature
7
6.3 Adjustment ranges
8
6.4 Accuracy class / closing pressure class
9
6.5 Selection of regulating spring
10
6.5.1
For FRM-NOC 10010/10015/100025
10
6.5.2
For FRM-NOC 10020/100040/100050
10
6.6 Selection of spring SAV
11
6.7 Type plate
12
7. Function
13
8. Dimensions
16
9. Assembly/installation
20
9.1 General information
20
9.2 Assembly instructions
21
9.3 Tightening torques
22
10. Function SAV
23
11. Adjustment
24
11.1 Adjusting the regulator
24
11.2 Adjusting the SAV
27
11.3 Example of calculations of adjustment values
28
11.4 Regulating spring replacement
29
11.4.1 Type UHD
29
11.4.2 Type ND, MD for 1", 1 1/2", DN25 and type HD
31
11.4.3 Type ND, MD for 2", DN40 and DN50
32
11.5 Spring replacement SAV
34
11.5.1 Spring replacement W
dso
34
11.5.2 Spring replacement W
dsu
35
12. Commissioning and decommissioning
37
12.1 General information
37
12.2 Leakage test
37
12.3 Commissioning/unlocking/control of adjustment values
38
12.4 Recommissioning
40
12.5 Decommissioning
40
13. Faults and their causes
40
14. Maintenance
42
14.1 General information
42
14.2 Regulatory maintenance instructions
46
14.2.1 Preparation
46
14.2.2 Replace the working membrane
46
14.2.2.1 Type UHD
46
14.2.2.2 Type ND, MD for 1", 1 1/2", DN25 and type HD
48
14.2.2.3 Type ND, MD for 2", DN40 y DN50
50
14.2.3 Replace valve seat
52
14.2.3.1 Type UHD
52
14.2.3.2 Type ND, MD for 1", 1 1/2", DN25 and type HD
53
14.2.3.3 Type ND, MD for 2", DN40 and DN50
55
14.3 Maintenance SAV
61
14.3.1 Preparation
62
14.3.2 Separate the ASE of the body
62
14.3.3 Assembly of the ASE on the body
63
14.4 Tools required
64
14.5 Leakage test
66
14.6 Recommended maintenance intervals
66