
4 … 72
MC • Edition 05.20 • Nº 279 663
5 … 72
5. Abbreviations
Abbreviation Description
AG
o
Accuracy class of the upper response pressure
AG
u
Accuracy class of the lower response pressure
AC
Accuracy class
ASE
Safety Cutting Device (without casing)
K
G
Flow coefficient
DN
Nominal diameter
Fail-open
Actuator that automatically moves to the open position when the main membrane or auxiliary power
required to drive it fails
DS
Type of construction: differential strength
Class A
Functional class: in case the comparison membrane is damaged or in the event of a breakdown of the
auxiliary power supply, the SAV will close
MOP
Maximum permitted operating pressure
p
d
Outlet pressure
p
d, abs.
Outlet pressure as absolute pressure
p
u
Inlet pressure
p
u, abs.
Inlet pressure as absolute pressure
p
do
Upper release pressure (overpressure)
p
du
Lower release pressure (low pressure)
p
max
Maximum operating pressure
p
adm.
System-specific operating pressure according to regulator
PN
Nominal pressure of the flanges
PS
Maximum admissible pressure
SAV
Safety cut-off valve
SBV
Safety Relief Valve
SG
Closing pressure class
S.n.
Serial Nº
SZ
Closing pressure zone class
Tp.
Operating temperature -20 °C ... +60 °C
W
ds
Range of regulation determined
W
do
Adjustment range for overpressure by using the available adjusting springs
W
du
Adjustment range for low pressure by using the available adjusting springs
W
dso
Range of the adjustment spring installed for overpressure
W
dsu
Range of the adjustment spring installed for low pressure
15. Spare parts
67
15.1 Regulatory list of spare parts
67
15.2 List of spare parts SAV
69
15.3 Storage conditions
70
16. Tables of flow diagram
70
16.1 Tables of flow diagram AC 10 explanation
70
16.2 Valve flow coefficient K
G
71
Содержание 279042
Страница 14: ...14 72 MC Edition 05 20 Nº 279 663 A B C D E A B C D E F Type UHD F Type HD ...
Страница 15: ...MC Edition 05 20 Nº 279 663 15 72 A B C D F E A B C D E F ND MD for G2 DN40 DN50 ND for G1 G1 5 y DN25 ...
Страница 43: ...MC Edition 05 20 Nº 279 663 43 72 Type UHD X Y Q S W V M C A B D E G F J K L N P H O R U I ...
Страница 45: ...MC Edition 05 20 Nº 279 663 45 72 Type ND MD for 2 DN40 DN50 M B D E G F J K L N H X Y Q S W V O I T ...
Страница 64: ...64 72 MC Edition 05 20 Nº 279 663 14 4 Tools required A B C2 D C1 ...