Hydra-Cell T Series User manual

Rev. A 14/10/2019 1
ATEX
T & Q-Series pumps
Directive 2014/34/EU
Covers – Category 2 Zone 1 requirements
Rev: A Date of issue: 14/10/2019

Rev. A 14/10/2019 2
Contents
1. Wanner and the ATEX Directive 2014/34/EU .................................................................................3
2. Operating Conditions ...................................................................................................................... 4
3. Drive Motors ...................................................................................................................................5
4. Protection Concept .........................................................................................................................5
5. Specific Conditions of Use............................................................................................................... 5
6. Markings of Conformity – Category 2 Zone 1 ................................................................................. 7
7. Earth Continuity Checks & Procedure............................................................................................. 9
8. Oil level monitoring device installation. ....................................................................................... 11
8.1 Electrical installation.............................................................................................................12
9. Installation and Putting into Service.............................................................................................13
10. Maintenance and Testing .........................................................................................................16
Appendix 1: Type Certificate.................................................................................................................17
Appendix 2: Maximum Pressure Values of all Models .........................................................................22

Rev. A 14/10/2019 3
1. Wanner and the ATEX Directive 2014/34/EU
ATEX Directive 2014/34/EU is a directive adopted by the European Union (EU) to
harmonise the technical and legal requirements in the Member States for products
intended for use in potentially explosive atmospheres. The Directive covers electrical
and non-electrical equipment and became mandatory in April 2016 when adopted by
the EU.
The Directives are known as ATEX from the French title of the 2014/34/EU directive:
Appareils destinés à être utilisés en ATmosphères EXplosives.
Wanner has worked with an outside specialist agency called Intertek in order to obtain
ATEX Certification for the T&Q-Series Hydra-Cell pumps, carrying out a
comprehensive risk assessment and compiling the Technical File. Intertek is
accredited by UKAS (the UK Accreditation Service) and authorised to carry out product
safety testing and Certification of equipment under European Directives such as ATEX
as well as under the international IECEx scheme. See Apendix 1 “Type Examination
Certificate.”
Certificate Number:
ITS14ATEX18067X
Compliance with the Essential Health and Safety Requirements has been assured by
compliance with standards:
EN 80079-36:2016
EN 80079-37:2016
T & Q-Series Hydra-Cell ATEX Certification covers the supply from Wanner of bare
shaft pumps and not complete pump and electric motor sets.

Rev. A 14/10/2019 4
2. Operating Conditions
The normal operating environment is an outdoor or indoor above ground industrial
environment in which flammable dust or gas could be present.
The intended maximum external ambient operating temperature is +40°C.The
minimum permitted temperatures (both ambient and operating) are defined by the
below table:
Diaphragm Material
Minimum service temperature (°C)
Aflas
30
EPDM
-20
FKM
5
HNBR
-5
This is the maximum temperature range for T-Series Hydra-Cell pump with ATEX.
Wanner has obtained Type Certification, for conditions outside the pump as follows:-
II 2G Ex h IIC T5…T4 Gb X
Group II (Zone 1)
Category 2 G (gasses)
T5…T4 (auto ignition temperature dependent on process temperature)
Process Temperature
Resultant T-class TX
Less than or equal to 49°C
T5
Less than or equal to 82°C
T4
Note – Process liquid temperatures above 82°C are not permitted for this
equipment.
Hydra-Cell pumps are not intended for pumping explosive atmospheres in normal
operation. Where the liquid being pumped is flammable or where the supply tank is
vented to an explosive atmosphere measures must be taken to ensure the pump head
is fully flooded with liquid during normal operation.

Rev. A 14/10/2019 5
3. Drive Motors
T & Q-Series Hydra-Cell ATEX Certification covers the supply of bare shaft pumps
only and not complete pump and motor sets.
The supplier of the drive motor and motor control system must provide over current
and short circuit protection that is capable of shutting down the pump before the motor
produces more than 100% of the input power limit of the power-end.
The input power limit can be calculated using the Hydra-Cell standard power
requirements formula (see product specification sheets on website) at maximum
speed and pressure for any given pump .
4. Protection Concept
T & Q Series Hydra-Cell pumps are protected by constructional safety and control of
ignition source.
Constructional safety is ensured by splash lubrication. Control of ignition source is
used in the form of an oil level monitoring float switch which ensures the presence of
the protective liquid (lubricant).
5. Specific Conditions of Use
Hydra-Cell pumps are not intended for pumping explosive atmospheres in normal
operation. Where the liquid being pumped is flammable or where the supply tank is
vented to an explosive atmosphere measures must be taken to ensure the pump head
is fully flooded with liquid during normal operation.
The pump must be operated in conjunction with an external safety relief valve which
must be set at or below the maximum operating pressure of the pump.
The liquid and ambient temperature limits in the table in section 2 must be
respected.
An NPSHa calculation taking into account acceleration head losses must be
performed by the operator and compared with the NPSH requirement of the pump
before installation to guard against operating the pump in conditions of cavitation.
The operator is responsible for checking the selected materials of construction for
resistance to the liquids to be pumped.

Rev. A 14/10/2019 6
The lubricating oil in the pump should be changed in accordance with the guidelines
stated in the pump Installation, Operation and Maintenance manual. The type of oil
recommended and the frequency of the oil change can vary in accordance with the
pump materials of construction, the duty, shaft speed, discharge pressure and the
process liquid temperature.
Only officially sanctioned genuine lubricants must be used. The below lubricants are
permitted for use in ATEX T & Q series pumps:
Oil code
(digit 13 of
pump model
code)
Description
Suitable for use
with diaphragm
materials
Re-ordering part
numbers
A
10w30 standard duty
All except EPDM
A01-114-3430
A01-114-3431
A01-114-3432
A01-114-3433
B
40wt
All except EPDM
A01-114-3440
A01-114-3441
A01-114-3442
A01-114-3443
D
EPDM compatible
All
A01-114-3402
A01-114-3403
E
Food contact
All except EPDM
A01-114-3410
A01-114-3411
H
15w50 high-temp
severe-duty synthetic oil
All except EPDM
A01-114-3416
A01-114-3421
T&Q Series Hydra-Cell pumps are not suitable for total immersion in liquid.
Only genuine replacement parts and mechanical components must be used. The
chemical and mechanical characteristics of genuine parts only have been considered
as part of the risk assessment to ensure explosion safety within the parameter of the
ATEX classification herein.
Alteration or modification of the pump is only permitted with the express permission
of Wanner International.

Rev. A 14/10/2019 7
6. Markings of Conformity – Category 2 Zone 1
The pump nameplate is Stainless steel and text clearly marked as below in figure 1.
Figure 1 - ATEX nameplate markings
The nameplate will be positioned on the top of the crankcase. It is fixed with pop
rivets to the main crankcase illustrated on the next page in figure 2.

Rev. A 14/10/2019 8
Figure 2 – Component positions
An earth stud is fitted to every T and Q-Series Hydra-Cell ATEX certified pump and
must be connected to ground during installation.
For some T100 models there is also a secondary earthing point on an ‘ear’ projecting
from the back cover gasket. This should also be connected to electrical ground.
Earth Stud
Oil Drain
Sight Glass
Oil level monitor
Nameplate
Access hole for testing float switches
Secondary earth
(T100 Only)

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7. Earth Continuity Checks & Procedure.
Checking Procedure.
The 2 cables connected to the PAT tester are connected, one to the manifold of the
pump and the other to the earth stud, as described in the pictures below.
The ‘earth bond’ is then measured on the deflection meter, when the red earth button
is pressed on the PAT tester.
Values of below 0.1 ohms can be expected and as such are acceptable. The actual
value is recorded against the pump serial number in the ATEX register.
PAT tester connected to pump 1

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PAT tester in operation 1