Dungs FRM-NOC 100025 HD, Instruction Manual, Page: 67 / 76

66 … 76
MC • Edition 2022.08 • No
. 279 663 R
ev
. -0
67 … 76
Work step Tool designation
Pressure
rating
Wrench size (mm)
DN 25 DN 40 DN 50
1 Loosen the pulse line. Open-ended wrench (A) ND/MD/HD 24 24 24
2 Release the adjusting springs.
Socket wrench (B)
ND/MD/HD
17 17 17
Socket wrench (B) 22 22 22
3
Separate the ASE from the
body
Internal hex key (C1)
ND/MD/HD
2.5 2.5 2.5
Jointed hook wrench with pins according to
DIN 1810 (D) 60-90 60-90 60-90
4
Replace the working membrane
in the ASE.
Internal hex key (C2) ND/MD/HD 4 4 4
SAV
Work step Tool designation
Pressure
rating
Wrench size (mm)
DN 25 DN 40 DN 50
1 Loosen the pulse line. Open-ended wrench (A) ND/MD/HD 24 24 24
2 Release the adjusting springs.
Open-ended wrench (A)
ND/MD/HD
24 24 24
Jointed hook wrench with pins (D) (UHD) 90-155 90-155 90-155
3 Replace the working membrane.
Internal hex key (C1)
ND/MD/HD
5 5 5
Open-ended wrench (A) 13 13 13
4 Replace the seal. Open-ended wrench (A) ND/MD/HD 13 17 17
5 Replace the valve seat. Socket wrench (B) ND/MD/HD 27 46 46
Regulator