GB-11
GB
DOC-2
MODEL DESCRIPTION
NDP Series
G Series
AD Series
a
b
c
d
e
f
g
h
j
NDP -
25
B
V
T
-
X
G
15
A
T
0
0
AD
-
40
A
C
a
Series
DP / NDP / AD / G
b
Centre Body
P: Centre body PP / H: Mechanical switching / No mark: Standard
c
Liquid connection port size
d
Valve type
B: Ball / F (NDP-5, 15): Flat / F (NDP-50): Flapper
e
Wetted parts material
f
Diaphragm and ball material
g
Liquid connection thread type 0: Rc / 1: NPT
h
Air connection thread type
0: Rc / 1: NPT
j
Special options code
DOC-3
ATEX CODING DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
II
2
G
Ex h
IIC T6/T5/T4 Gb
II
2
G / 2
D
Ex h
IIC T6/T5/T4 Gb / Ex h
IIIC T95°C Db
1
Specific marking of explosion protection
2
Equipment of group II
3
Equipment of category 2
4
Explosive atmospheres caused by gases, vapours or mists
5
Equipment of category 2
6
Explosive atmospheres caused by dust
7
Non-electrical equipment for explosive atmospheres
8
Equipment of Group IIC
9
Temperature class, based on its maximum surface temperature internal and external
10
Equipment Protection Level (EPL), “equipment for explosive gas atmospheres”
11
Non-electrical equipment for explosive atmospheres
12
Equipment of Group IIIC
13
Maximum Surface temperature
14
Equipment Protection Level (EPL), “equipment for explosive dust atmospheres”
e
d
f
c
e
b
c
d
d
e
e
e
e
f
f
c
d
c
b
c,g
c,g
b
b
f
d
e
c
c
d
h
LIQUID
LIQUID
AIR
AIR
