VERDER VERDERFLEX Dura D10, Instruction Manual

Page: 12 / 16

ATEX Instruction Manual
Dura 05-55
Version 1.0v-07/2019 12 | Page
5 Limitations for use in ATEX
Environment
5.1 Speed Limitations
5.2 Maximum Pressure
5.3 Maximum Temperature
5.4 Lightning Strike
End user to take provision that pump will be protected
against lightning strikes.
5.5 Ionising Radiation
Pump is not approved for use in radioactive area.
Standard, background radiation is permissible (< 50,000
Bq) Motor Protection.
5.6 Motor Protection
1. Motor must have PTCs fitted and correctly installed.
2. Motor must be protected by motor overload relays or
equivalent.
3. Motor must be protected in event of overload condi-
tion.
4. ‘Ex’ motors for vertical mounting (shaft down) should
be equipped with a Drip Cover (Impact Canopy) over
the Fan Cowl.
5.7 Pumped Media
The ATEX certification is only valid when pumping media
that is approved by Verder. Using the pump with media
that is not approved by Verder will make this certification
void.
5.8 Hose Material Limitation
The following hoses can be used on ATEX pumps
(when applicable):
 NBR - Nitrile Rubber
 NBR(F) - Nitrile Rubber (food grade)
 EPDM - Ethylene Propylene Diene Monomer
 NR - Natural Rubber
The following hoses cannot be used on ATEX
pumps:
 CSM - Chlorosulfonated polyethylene
5.9 Limitation for Inserts that can
be used
The following inserts are suitable for use in an ATEX
environment:
 Stainless steel
The following inserts cannot be used on ATEX
pumps:
 PP - Polypropylene
 PVDF - Polyvinylidene fluoride
Pump Type
Maximum output
RPM
Minimum output
RPM
D5, D7, D10,
D15, D25 and
D35
60 RPM -
D5, D7, D10,
D15 and D35
- 12.5 RPM
D25 - 16.7 RPM
D45
79RPM @ 5 Bar
59RPM @ 10 Bar
38RPM @ 16 Bar
12.5 RPM
D55
47RPM @ 5 Bar
38RPM @ 10 Bar
38RPM @ 16 Bar
12.5 RPM
Table 10 Dura 05-55 - Maximum /Minimum Output
Pump Type
Maximum Discharge
Pressure BAR
D5 and D7 8 BAR
D10 and D15 12 BAR
D25 and D35 16 BAR
D45 and D55 16 BAR
Table 11 Dura 05-55 - Maximum Pressure
Pump Type Maximum Medium
Temperature
Maximum Ambient
Temperature
D05-55 40°C 40°C
Table 12 Dura 05-55 - Maximum Temperature