II =
Group II ( surface)
2 =
Category 2 (zone 1)
G =
Explosion hazardous environment with presence of gas, fog and vapour
c =
Manufacturing safety "c"
T6 =
Class of temperature T5
- 20°C ÷ + 60°C
Environment temperature
60°C
Maximum fluid temperature
xxxx/AA
Serial number xxxxx = PROGRESSIVE/ year = AA
DANGEROUS AREA
CATEGORIES AS PER RULES 94/9/CE
Gas, vapour or fog
Zona 0
1G
Gas, vapour or fog
Zona 1
2G or 1G
Gas, vapour or fog
Zona 2
3G, 2G or 1G
LOW PRESSURE TRANSFER DOUBLE DIAPHRAGM PUMPS
SERIE 2 LARIUS
SERIE 4 LARIUS
Pressure ratio
1:1
1:1
Pump feeding air pressure [bar]
1÷7
2÷8
Pump feeding air inlet
1/4" GAS
1/4" GAS
Max. Fluid delivery [l/min.]
21
40
Max. Air consumption [l/min.]
120
190
Low pressure transfer double diaphragm pumps series 2 and 4.
These safety instructions are related to installation, use and
service for use of transfer low pressure double diaphragm
pumps – series 2 and 4 – in potentially explosion Hazardous
environments due to presence of gas or vapour.
Environment temperature:
-10°C÷+50°C
Max. fluid temperature [°C]
: 60°C
Max. air temperature [°C]:
30°C
Low pressure double diaphragm transfer pumps series 2 and 4.
MARKING
ATEX CERTIFICATE
TECHNICAL FEATURES
II 2 G c IIB T4 T
amb
: -10°C ÷ + 50°C T
max.
fluido: 60°C Tech. File: LARIUS 2-4/ATEX/05
Relation between hazardous areas, products and categories
These instructions must be followed as further
precautions to those already listed within the
use and service instruction manual.
The double diaphragm pumps series 2 and 4
are group II equipment, suitable to use in areas
classified with iresence of gas and vapour (Ca-
tegory 3G, group IIB). The pumps are designed
and manufactured to suit the rules ATEX 94/9/CE
and the European Rules: EN 1127-1, EN 13463-
1ed EN 13463-5.
3
X
DESCRIPTION
EN
www.larius.com
34
LARIUS 2 TRANSFER
ED.
10 - 01/2022 - Cod. 150146
N
