TPY
R
TPY
R
17
18
Make sure that the pump is connected to ground
Some air is gathered in the pump
Make sure that the pump and the motor shaft are running smoothly
and without excessive noise(e.g.no parts are running against each
other).
note
EX
ia
IIC
2G
T4
T5
Ex Type
statement
Gas Type
Gas Type
Tem level
C
ia
0
GB3836
Meet explosion-proof standard of China GB3836
use ia essential safety explosion-proof
Be allowed to involve IIC explosive gas
2G
G
2G says surface gas high protective category
T5
100
T5
100
Cs
2
T4
135
6
T4
135
C
2
H
4
0,C
2
H
4
,etc.
Llsts
8
Gas temperature into groups
Tem
Surface tem
Gas explosion
T1
T2
T3
T4
T5
T6
450
100
85
135
200
300
46
H
2
,C
3
H
3
N
etc.
47
C
2
H
2
,C
2
H
4
etc.
6
C
2
H
4
0,C
2
H
4
,etc.
CS
2
C
2
H
5
NO
3
,C
2
H
5
NO
2
36
gasoline, C
4
H
6
O, etc.
For the dangerous sites explosion-proof method:
number
1
2
EX Type
code
national standard
EX protection
Applicable areas
flame proof
d
e
ia
GB3836.2
Isolated existence of ignition
Zone1,Zone2
3
ib
Type increasing safety
GB3836.3
Produce ignition
Zone1,Zone2
The Ann model
GB3836.4
Limit the ene-rgy of ignition
Zone0-2
Zone1,Zone2
4
5
6
7
8
9
p
o
q
n
m
h
Is pressed
GB3836.5
Isolated from dangerous
mater-ial and ignition
Zone1,Zone2
Filling oil type
Mold filling
No spark type
Encapsulation type
Airtight type
GB3836.6
GB3836.7
GB3836.8
GB3836.9
GB3836.10
Isolated from dangerous
mater-ial and ignition
Produce ignition
Produce ignition
Zone1,Zone2
Zone2
Zone1,Zone2
Zone1,Zone2
Zone1,Zone2
Zone1,Zone2
Isolated from dangerous
mater-ial and ignition
Produce ignition
