Crane ELRO GUP 3-1,5 Specification sheet

www.cranechempharma.com
Pumps for hazardous
materials
GUP 3-1,5 and GP 20/10 Ex
Operating Manual and
Installation Instructions
Installation, Operation
and Maintenance
BA-GP-GB/10.19

2
ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
This is the translation of the original declaration of conformity for
ELRO peristaltic pumps series IP

3
ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
Declaration of Conformity
in compliance with the machine directive 2006/42/EC
We hereby declare, that the pump units manufactured in series production
Designation: ELRO – pump for hazardous materials
Series: GUP 3-1,5 and GP 20/10Ex
Manufacturer: Crane Process Flow Technologies GmbH
Heerdter Lohweg 63-71
D-40549 Düsseldorf
Serial number: (see identication plate)
in the version delivered by us, is in compliance with the following applicable
regulations:
EC-machine directive: Machine directive 2006/42/EC
EMC-directive 2014/30/EC
Harmonised standards: EN ISO 12100:2011-03, EN ISO 13857:2008-06,
EN 809:2012-10
Mr. Ralf Rennwanz is authorized to compile the technical documents.
Crane Process Flow Technologies GmbH
Heerdter Lohweg 63 - 71
40549 Düsseldorf
Data / signature of manufacturer: 31.10.2019
Information on signatory: Hans-D. Ptak, Managing Director

4
ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
complies with the terms of Directive 2014/34/EU for equipment authorised for use in potentially explosive
environments
The manufacturer Crane Process Flow Technologies GmbH,
Heerdter Lohweg 63-71, 40549 Düsseldorf,
declares that the pump units manufactured in series production
Description: ELRO – Peristaltic Pump
Series: GUP 3-1.5 as well as GP20/10Ex
Pump hose materials: NBR, CSM, NR
all hoses are electrically conductive
Connecting ports:Stainless steel, bronze; PP electrically conductive
Base frame: Fire ghter frame high-grade steel or galvanized steel
Pulsation damper: High-grade steel with CSM diaphragm electrically conductive
Suction/pressure hoses: electrically conductive
Barrels and suction accessories: Stainless steel
Drives: All drives have their own declaration of conformity issued by the
supplier
Installed electrical components: all electrical units have their own declaration of conformity issued
by the supplier
in the version delivered by us, is in compliance with the following applicable regulations:
EC Directive: Directive 2014/34/EU for equipment authorised for use in
potentially explosive environments.
Conformity assessment procedures: Equipment group II, category 2G, explosion group IIB
temperature class T3, equipment protection level (EPL) Gb
Harmonised standards: DIN EN 1127-1:2011-10
DIN EN ISO 80079-36:2016-12
DIN EN ISO 80079-37:2016-12
Fireghting standard: DIN 14427:2013-12
Place, date: Düsseldorf, Germany, 26/09/2019
Signature of manufacturer:
Information on signatory: Hans-Dieter Ptak, Managing Director
EU Declaration of Conformity
II 2G Ex h IIC T3 Gb

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ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
Table of contents
Page
1.0 General ................................................................................................................. 7
1.1 Warranty ................................................................................................................. 8
1.2 Transport, storage ................................................................................................... 8
1.3 Function ................................................................................................................. 9
2.0 Safety .................................................................................................................. 11
2.1 General ................................................................................................................ 11
2.2 Intended use ........................................................................................................ 13
2.2.1 Unintended use .................................................................................................... 13
2.3 Operation of pump ................................................................................................ 13
2.4 Conversions and alterations to the pump .............................................................. 13
2.5 Symbols and notes on safety ............................................................................... 13
2.6 Maintenance work................................................................................................. 14
2.6.1 Health and safety information on electric equipment............................................. 15
2.6.2 Health and safety information for work on pressure lines ...................................... 15
3.0 Notes on application ......................................................................................... 16
3.1 Points to be observed before use.......................................................................... 16
3.1.1 Pump suction power.............................................................................................. 16
3.2 Installation and connection ................................................................................... 16
4.0 Operating instructions ....................................................................................... 17
4.1 Points to be observed before start-up ................................................................... 17
4.1.1 Filling the transport drum ...................................................................................... 17
4.1.2 Transport drum as dirt separator .......................................................................... 18
4.2 Control elements .................................................................................................. 18
4.2.1 Connecting the pump to the electric power supply ............................................... 19
4.2.2 Switching the pump on and o ............................................................................. 19
4.2.3 Commissioning ..................................................................................................... 19
4.2.4 Use of the pulsation damper ................................................................................. 19
4.2.5 Transfer of highly liquid hazardous uids .............................................................. 20
4.2.6 Pumping of highly viscous pulpy product ............................................................. 20
4.2.7 Taking up of contaminated uid residues ............................................................. 21
4.2.8 Taking up of thin uid lms ................................................................................... 21
4.3 Taking out of service ............................................................................................. 22

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ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
Page
5.0 Maintenance.........................................................................................................23
Standard design (spare parts list) .......................................................................... 24
5.1 Cleaning ................................................................................................................ 26
5.2 Replacing the pumping hose ................................................................................. 27
5.2.1 Removing the old pumping hose ........................................................................... 27
5.2.2 Inspecting the inside of the pump .......................................................................... 28
5.2.3 Installing the new pumping hose ........................................................................... 28
5.3 Replacement of separating part ............................................................................ 29
5.4 Replacement of abutment ..................................................................................... 30
5.5 V-belt drive ............................................................................................................. 30
5.5.1 Axial locking of the pulleys ..................................................................................... 30
5.5.2 Checking the tension of the V-bel........................................................................... 30
5.6 Oil change ............................................................................................................. 30
5.6.1 Pump housing ....................................................................................................... 30
5.6.2 Gearbox ................................................................................................................. 30
5.6.3 Prescribed lubricants ............................................................................................ 30
5.7 Shaft bearing.......................................................................................................... 31
6.0 Spare parts ..........................................................................................................31
6.1 Spare parts storage................................................................................................ 31
6.2 Ordering spare parts .............................................................................................. 31
7.0 Troubleshooting ..................................................................................................32
8.0 Technical data .....................................................................................................33
9.0 Appendix .............................................................................................................34

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ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
1.0 General
ELRO®Peristaltic pumps GUP 3-1.5 as well
as GP20/10Ex are dimensioned as pumps
in accordance with chapter 1, article 1, sec-
tion (2), paragraph (j), point (ii) of the pres-
sure equipment directive and are therefore
no pressure equipment as dened by the
EC pressure equipment directive 2014/68/
EEC.
The following instructions refer to the pump
for hazardous materials GUP 3-1,5 acc. to
DIN 14427 and GP 20/10Ex.
1 Mains plug with holding clamp
2 Pulsation damper
3 Connecting cable 1.5 m
4 Concise instructions
5 Protective covering
6 Identication plate
7 Carrier frame
8 Connection for ground strap
9 Dosing valve
10 Carrier handle, foldable
11 Vacuum gauge
12 Connecting socket, suction side
13 Connecting socket, pressure side (T-tting)
14 O-switch
15 On-switch, speed range I
16 On-switch, speed range II
Fig. 1 Schematic design of pump for hazardous materials GP20/10Ex:
14
15
16
12
3
4
6
5
7
8
9
10
11
12
13
15
16
14
Caution!
Since the pumps will be used
in combination with other
assemblies, such as motors,
you must also strictly observe
and comply with the operating
and maintenance instructions
for these components as well as
the corresponding notes on safe
and reliable operation.
These on-hand instructions contain
information for installation, operation and
maintenance of ELRO pumps for hazardous
materials.

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ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
Pumps for hazardous materials GUP 3-1,5
and GP 20/10Ex
You should therefore thoroughly read these
instructions before use and always follow the
information contained therein.
All personnel involved in
activities on pump or equipment
associated with the pump
must have read this manual,
especially the chapter ”Safety”
before starting work. This is
too late once work has started.
This applies especially for
persons who work on the
pump only occasionally, e.g. for
maintenance and cleaning work.
You should always bear in mind that a
correct function, a long lifetime and optimal
operational reliability of the pump mainly
depend on
n correct installation
n correct commissioning
n and proper maintenance.
Enquiries concerning service, spare parts
or repairs should be addressed to the
manufacturer or an authorized dealer.
Always provide the following information:
n Type
n Serial number of pump
This information is stamped on the
identication plate on the outside of the
pump.
When returning pumps or pump
parts to the manufacturer or an
authorized dealer for repair or
overhaul, the delivery must be
accompanied by a certicate
stating that the pump is free of
product or other aggressive or
hazardous substances.
1.1 Warranty
The correct function of each ELRO pump
for hazardous materials is checked in the
factory before shipment. The manufacturer
assumes warranty for his product as
specied in the eective terms of sales
and delivery. Faults resulting from the non-
compliance with the regulations and notes
described hereunder can only be rectied at
the cost of the customer.
1.2 Transport
In order to avoid any problems you should
n check the delivered goods against the
delivery note for completeness and
correctness,
n check whether the corresponding
manual for the electric drive has been
included.
Be careful when unpacking the pump and
proceed as follows:
n Examine the packaging for transport
damage.
n Take the pump carefully out of the
packaging.
n Examine the pump for any visible
damage.
Consider the indicated weight
before attempting to lift the
pump. Use only lifting gear of
appropriate capacity.
Do not step or stand under
suspended loads.
Description of safety symbols under
Chapter 2.5.
Caution!
Caution!
Caution!

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ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
Attach the lifting tackle so that the pump
for hazardous materials can be safely lifted
(Fig. 2).
Either fold out the carrier handles and carry
the pump by these handles
or
attach carrier belts or ropes to the eyelets
on the carrier frame and lift the pump with a
hook.
In order to avoid slipping of the
sling the rope (belt) must be
crossed over at the hook.
Fig. 2 Transport of the pump with lifting gear
The priming properties of the peristaltic
pump are based on the vacuum backed
restoring forces of its hose. Due to its paten-
ted design a vacuum is permanently gene-
rated inside the hose on the suction side of
the pump. This vacuum always restores the
hose to its original size.
The abutment 2 (Fig. 3) is an elastomer part
and is installed in the pump section where
the hose is squeezed to maximum extend.
This "soft contact base" of the hose pro-
longs its lifetime considerably.
At the same time this abutment protects the
pump housing against damage caused by
solid particles in case of a hose breakage.
In case of wear the abutment can be easily
replaced.
1.3 Function
Fig. 3 1 Rotor 3 Separating part
2 Abutment 4 Hose
Saugseite
1
3
2
4
Caution!

10
ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
The sliding tube of the rotor enlarges the
volume of the suction area (4). At the same
time the pressure area (7) is decreased and
the air is forced out through a channel in the
pump cover.
The rotor (1, Fig. 5) rotates inside the
separating part (3, Fig. 5), which is tightly
bolted to the housing. This separates the
suction area (4, Fig. 5) from the inside of the
pump (5, Fig. 5).
The separating part 3 (Fig. 3 and 5)
separates the suction area (4, Abb. 4)
from the inside of the pump (5, Fig. 4) and
protects the pumping hose. In case of hose
breakage it additionally protects the rotor (1,
Fig. 4) against damage caused by abrasive
or coarse particle product. The separating
part can be replaced by simply unscrewing
two screws.
The pump is lled with 1 litre of sliding uid
(glycerine or silicone), which works as
lubricant, barrier and coolant.
The vacuum gauge connected with the
suction area (4, Fig. 4) not only shows the
present suction lift of the pump, but has the
additional function of a warning instrument
for possible defects. If the vacuum gauge
does not indicate a vacuum during
operation, the pump needs to be serviced
urgently.
This maintenance can be carried out without
any special tools.
Fig.5
Fig. 6
7
5
4
61
3
4
77
6
7
5
4
61
3
4
77
6
1 Rotor
3 Separating belt
4 Suction area
5 Inside of housing
6 Hose chamber
7 Pressure area
4 Suction area
7 Pressure area
Fig. 4 Vacuum gauge

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ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
Since the hose chamber (6, Fig. 5) remains
constant, the pressure area (7, Fig. 5) is
decreased by the rotation of the rotor, which
results in a volumetric pumping process
(Fig. 7).
As the rotor rotates further the suction area
becomes bigger. The fast rotation of the
rotor generates a permanent vacuum of
down to -1 bar (Fig. 7).
2.0 Safety
2.1 General
Please make sure that the pump is used
for hazardous materials in compliance with
applicable national safety regulations.
For HAZARDOUS MATERIAL
APPLICATIONS the pump must only
be started up and used by trained and
professional persons and only in the
permitted environment.
The pump must only be used outside or
in well ventilated rooms.
Due to its excellent suction power the
pump for hazardous materials can be used
in explosion endangered environments,
when keeping a safe distance to the danger
source.
The reliable discharge of
electro-static charging, which
may occur during pump
operation, must be assured.
The electric supply cable to the pump
must be tted with an explosion protected
coupling socket for 380 - 415 V - 16 A
(3P+N+PE), type of protection EEx de
II CT6 such as: CEAG-GHG 531 3506
VO (matching explosion protected plug:
CEAGGHG 531 7506 VO).
The sense of rotation of the electric motor
required for operation of the pump must be
assured by correct polarity from the factory
and should be marked with an arrow on the
motor housing (rotary eld clockwise acc. to
DIN VDE 0530 T1).
The pump has been designed for
connection to electric control cabinets acc.
to DIN 14686 or power generators acc. to
DIN 14685 or DIN 14688.
Fig. 7
Fig. 8
7
5
4
61
3
4
77
6
6 Hose chamber
7 Pressure area
4 Suction area
7 Pressure area
7
5
4
6
1
3
4
74 77
6
Hazard!

12
ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
Important protections for operating
personnel:
If the operating voltage should fail for
some reason while the pump is running,
the pump control ensures that the
pump will not automatically start again
after the voltage supply has been re-
established. The pump must in such
a case be restarted by actuating the
switch.
Due to its robust design this highly
insensitive pump for hazardous materials
is able to pump abrasive, viscous or pulpy
materials mixed with solids.
The pump for hazardous materials GUP
3-1,5 is generally equipped with a Hypalon
(CSM – electrically conductive) hose.
The GP 20/10 Ex can alternatively be tted
with a Nitrile (NBR) hose for oil ghting
applications.
The new Hypalon (CSN) pumping hose is
most suitable for the transfer of pumped
products as mentioned in the compatibility
list.
After each use with hazardous
materials of this kind the
pumping hose must be replaced
for safety reasons.
After each use and before
changing the hose the pump
must be thoroughly ushed and
completely drained. The mixing
of certain pumped media may
otherwise cause dangerous
chemical reactions.
Always observe all applicable accident
prevention instructions and implementing
regulations.
The following precautions must be applied
before performing maintenance work.
If the product to be pumped is a hazardous
or noxious substance, the system must be
neutralized and vented
Danger or burning
Depending on operating
conditions the pump may reach
temperatures too high to touch.
You should therefore switch o
the pump and let it cool down
before touching it.
nDisconnect the pump for hazardous
materials from the electric power supply
(pull out the mains plug)
nDepressurize the pump head, i.e.
relieve suction and pressure lines
It is not permitted to run the pump after
removing the pump cover. When cleaning
the pump manually make sure that all
necessary precautions have been applied.
All incorrectly installed, unprofessionally
operated or insuciently serviced machines
and pumps are potential safety hazards.
The non-observance of relevant safety
measures may cause injury to operating
personnel or damage to the pump.
The safety covering must be properly
reassembled before restarting.
The pump must be shut down or should
not be restarted if any defects are found
which could aect the operating safety and
reliability of the pump.
Caution!
Caution!

13
ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
2.2 Intended use
The explosion protected portable pump for haz-
ardous materials is intended for taking up and
transferring of aggressive uids of classes 3,
6.1 and 8 of the "Gefahrgut-Verordnung-Straße"
(GGVS)1) and is also suitable for the transfer
of mineral oil products and other combustible
products of EXPLOSIVE GROUPS II A and II B
with ignition temperatures higher than 200 °C 2).
It is designed for mobile application andtempo-
rary operation (up to max. 5 hours).
Check the pumping capabilities of
the medium (freezing point) be-
fore commissioning.
In explosive environments the pump is only
approved for zone 1 3).
Not approved for use in zone 0!
Fluids with an ignition tempera-
ture of less than 200 °C must not
be pumped!
Temperatures
The permissible ambient temperature range is
-20 °C to +40 °C.
For permissible operating temperatures of the
pump hoses refer to chapter 3.0.
1) Directive concerning domestic and cross-
border transport of hazardous materials by road
(published in federal legislation part 1). (Ecomed
Verlag GmbH, D-86899 Landsberg/Lech)
2) Denition of explosion groups and
temperature classes see EN 50 014 (Beuth
Verlag GmbH, D-10787 Berlin 30).
3) Denition of zones see directive concerning
electrical equipment in explosion endangered
rooms: ElexV (Carl Heymanns Verlag KG,
D- 50939 Köln 41).
The pump is designed for mobile use and for
short-time operation (up to max. 5 hours).
Wear your personal protective
clothing (full protection) before
pumping hazardous material.
2.2.1 Unintended use
The operating safety and reliability of the
supplied pump can only be assured if it is used
for the purpose it is intended for. The limits
mentioned in the technical data sheet must not
be exceeded under any circumstances.
It is not permitted to operate the
pump with insucient lubricant. For
the ll level, refer to Ch 5.6.It is not
permitted to operate the pump for
more than 0.5 h without medium to be
pumped.
2.3 Operation of pump
The pump must only be authorized persons.
Any responsibilities must be clearly appointed
before starting operation and should always be
complied with.
2.4 Conversions and alterations to the
pump
Conversions and alterations to the pump are strict-
ly prohibited.
However, this does not include minor changes,
which do not aect safety and reliability, or meas-
ures, which even enhance the safety. Safety instal-
lations must not be made ineective or changed or
used in a way contradicting their purpose.
2.5 Symbols and notes on safety
Note on danger, which, if not ob-
served, may lead to sever injury or
even death.
Note on danger, which, if not ob-
served, may lead to sever injury or
even death.
Hazard!
Warning!
Warning!
Warning!
Warning!
Caution!

14
ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
Note on danger, insecure
handling and working
procedures may cause injury or
extensive damage to equipment
and property.
Warning – dangerous electric
voltage. Contact with live parts
can cause immediate death.
Doors and covers (e.g. hoods
and lids) marked with this
sign must only be opened by
”specialists or/and instructed
persons” after the respective
operating voltage (input terminal
voltage, operating voltage or
external input voltage) has been
switched o.
Operating safety of equipment at
risk.
The non-observance of this note
aects the operational reliability
and can lead to pump damage.
In this manual the Attention
symbol precedes all safety
notes referring to instructions,
regulations or work sequences,
which must be strictly complied
with:
In this manual these symbols are used to
highlight notes on possible dangers.
2.6 Maintenance work
Maintenance work must only be performed
by qualied and specially instructed persons.
This applies particularly for all work on
electric, hydraulic and pneumatic equipment.
Keep unauthorized persons away from the
pump.
Mechanical and electrical repairs and
maintenance work must only be carried out
by qualied specialists. The professional
execution of this work must be examined
and approved by a highly skilled and
responsible ”Inspector”.
Before starting repair and maintenance work
the equipment must be switched o and
shut down and secured against unintended
or unauthorized restarting.
Before starting work on electrical systems
and equipment make sure that the system is
reliably de-energized.
Apart from this the pump for hazardous
materials must be reliably secured against
unexpected restarting.
nPull out the mains plug
The customer (or an ”authorized person”
appointed by him) is responsible for the
compliance with all accident prevention
instructions applicable at the place of use.
As a measure to avoid injury all
maintenance, adjustment and repair work
should only be carried out using permitted
and appropriate tools and working aids.
Blown fuses must not be repaired or bridged
and may only be replaced by fuses of the
same type.
Cooling facilities, such as ventilation slots,
must not be made permanently ineective.
Rotating or moving parts must be reliably
stopped before starting work. It must be
assured that these parts will not start to
move while work is in progress.
Do not touch rotating parts and always keep
a safe distance to avoid clothing or hair
being caught.
Always wear protective clothing suitable for
the job and the related dangers.
This applies especially for cleaning,
Attention!
Caution!

15
ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
maintenance and repair work. Depending on
the type of work to be performed sucient
protection may be provided by e.g. wearing
the following protective clothing: Protective
goggles, ear defenders, working boots,
safety gloves, etc.
Protective clothes should be of tight t.
If your face could come in contact with
chemicals, metal splinters or dust during
work, you should wear a full face protection
with safety goggles.
Always wear safety boots is there is a risk
of heavy objects tipping over, slipping or
coming loose for any other reason, thereby
causing danger for your feet.
2.6.1 Health and safety information on
electric equipment
Depending on the version, the pumps may
be equipped with electronic accessories
(controls, motor drives).
Severe damage to health and property can
be caused by:
nnon-permitted removal of covers
nunprofessional use of pump
ninadequate maintenance
Before starting installation work on electrical
equipment this equipment must be reliably
de-energized.
Cover non-insulated live power lines and
plug connections against unintended
contact.
Electric components stored and not used for
a longer period of time should be carefully
inspected before use, to ensure that the
insulation is still intact.
On wet electric assemblies or components
parts, which would be perfectly de-
energized in dry condition, may still be live.
Before touching damp or wetted electric
components check by measuring whether
parts that could be touched are still live.
Do not attempt to insert any objects
through the openings on pump or attached
equipment. This may cause short circuit and
electric shocks with danger to life.
2.6.2 Health and safety information for
work on pressure lines
Always relieve the pressure before starting
work on pressure lines.
n Close shut-o valves
nVent pipelines
Be careful when checking for
leaks on pressurized lines.
Fluids or air escaping under
pressure can penetrate clothes
and skin.
Be careful when loosening
or changing pressure lines;
lines mixed up by mistake may
reverse the function.
Take care when handling hazardous
(caustic, harmful) uids.
nAlways wear your personal protective
outt (e.g. gloves, goggles, tight tting
clothes).
nIn case of skin contact, inhalation
of harmful vapours or eye injury you
should immediately contact a physician.
Caution!
Caution!

16
ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
3.0 Notes on operation
3.1 Points to be observed before use
The pump must only be used by
professionals and in compliance with the
safety regulations (see chapter 2).
1. Before start-up make sure that the
pump is in perfect condition.
The pump must only be operated
in upright position with suction and
pressure ports pointing up.
2. The pump is delivered ready for
operation. In order to avoid friction heat
and to save the pumping hose the pump
is lled with 1 litre of silicone oil.
3. Check the pump arrangement to ensure
that suction lift and discharge head are
not exceeded.
3.1.1 Pump suction line
1. If the uid to be pumped contains solid
particles with a size of more than 8 mm,
a lter, e.g. at suction box, suction
strainer should be used. This lter must
be permanently monitored and cleaned.
3.2 Installation and connection
The pump unit must be placed on a level
base of sucient load bearing capacity for
the weight of the pump.
Since the pump is a positive displacement
pump it must be assured that no shut-o
elements are installed in the pressure side.
Pump for hazardous materials GUP 3-1,5
acc. to DIN 14427
The pump is tted with Camlock quick
couplings DN 50 (male part) for the
connection of hoses.
The matching couplings on suction side
consist of:
Camlock coupling DIN 2828, DN 50
(female part)
Elbow, 90° pressure gauge,
DN 50 for chemical applications
screw tting, DIN 11851, DN 50
(female part)
Blanking plug DIN 11851, DN 50
with chain
on pressure side of:
Camlock coupling DIN 2828, DN 50
(female part)
T-union with two times DN 50
Male part and two blanking caps
with chain DIN 11851
All connecting ttings are made of material
V4A (1.4571). The pump for hazardous
materials GP 20/10 Ex can alternatively be
equipped with Storz couplings C or tank
truck couplings. ELRO pumps for hazardous
materials GUP 3-1,5 and GP 20/10 Ex are
provided with motor protection switch, O-
switch and two-stage On-switch (stage I and
stage II).

17
ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
4.0 Operating instructions
4.1 Points to be observed before
commissioning
Please check:
nwhether the pump is correctly installed
and connected.
nwhether the sense of pump rotation is
correct.
The sense of rotation is "clockwise"
(when viewed from the drive). An arrow
on the electric motor marks the sense of
rotation
nthat the pump is only used in the permit-
ted explosion zone.
nwhether the pumping hose inside the
pump is suitable for the product to be
pumped.
nthat all safety installations are fastened
and fully functional.
nwhether the pump is properly earthed to
avoid electro-static charging.
4.1.1 Filling the transport drum
When taking up small uid quantities, which
are contaminated by solids, the pump for
hazardous materials is used as vacuum
pump for the transport drum. The contami-
nated uid is directly pumped into the drum,
the pump does not have any contact with
the uid. The installation must be made as
shown in Fig. 9.
When filling, ensure that a pressure of
1 bar is not exceeded.
Fig. 9 Filling the transport drum
1 Transport drum 8 Vacuum hose 1"
2 Special suction pipe 2" with straight-through ball valve 9 Suction port with blanking cap
3 Hazardous material 10 Suction port
4 Suction hose 2" 11 Pump for hazardous material
5 Suction port 12 use an air lter, if required
6 Air connection
2
3
45
9
1
6
8
10 12
11

18
ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
4
3
5
1
2
6
7
8
10
11
9
If a tank truck is available to transport the
hazardous material, the transport drum is
used as a dirt separator. This enables to
take up even the last residues of the hazar-
dous material. Foreign matter is separated in
the drum and thereby kept away from pump
and tank. The installation must be made as
shown in Fig. 10.
The peristaltic pump must not
be operated against closed
shut-o valves.
4.2 Control elements
The pump is operated via three switches
on top of the pump.
Fig. 10 Transport drum as dirt separator
1 Air connection closed with blanking cap 7 Suction port
2 Transport drum 8 Pressure port
3 Hazardous material 9 Pressure hose 2"
4 Suction hose 2" 10 Pump for hazardous material
5 Suction port 11 Tank truck
6 Suction port
4.1.2 Transport drum as dirt separator
Fig. 11 1 O-switch
2 Speed range I - On-switch
3 Speed range II - On-switch

19
ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
4.2.1 Connecting the pump to the
electric power supply
The pump is connected to the electric power
supply by means of a mains plug (see also
Fig. 12).
Before plugging in the mains
plug check whether the
operating voltage complies
with the specication on the
identication plate.
Plug the equipment plug into the appropriate
socket.
4.2.2 Switching the pump on and o
nButton 2 or 3 – press to switch on pump
in speed stage I or II.
n Button 1 (O-switch) – press to switch
o the pump.
nFrom speed stage I you can press
button 3 to change directly to the higher
speed stage II.
Note:
If the operating voltage fails during operation
the pump control prevents an automatic
restarting of the pump after the operating
voltage has been re-established.
The pump must be switched on by pressing
button 2 or 3.
4.2.3 Commissioning
The vacuum gauge mounted to the pump
housing shows the vacuum on the suction
side. After a short time running the vacuum
gauge should indicate vacuum. If no
vacuum is reached, check the pump for leak
tightness (see chapter maintenance and
troubleshooting).
The ow rate can be regulated with the
dosing valve on the front side of the pump
(see Fig. 1 in the chapter "General").
Start the pump only when
wearing your personal
protective outt.
4.2.4 Use of the pulsation damper
The pulsation damper is xed with a bracket
to the top of the pump (Fig. 12).
When used with high pressures – max. 1.5
bar (long hoses) – it is recommended to
mount the pulsation damper to the pressure
side of the pump (T-tting with blanking
cap).
1 Pulsation damper in transport bracket
2 T-tting with blanking cap (for installation
of pulsation damper)
3 Mains plug
Fig. 12
For this purpose unscrew the pulsation
damper from the transport bracket by
turning it anti-clockwise. Remove the
blanking cap from the T-tting port pointing
upward.
Attention!
Warning!
1
2 3

20
ELRO® Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
Turn the pulsation damper onto the free
thread and tighten it.
Install the pulsation damper
only with the pump switched
o, tighten the clamping strap
of the pulsation damper before
starting operation.
4.2.5 Transfer of highly liquid
hazardous uids
Start the pump only when
wearing your personal
protective outt.
Starting work
1. Connect and tighten the pulsation
damper.
2. Connect suction and pressure hoses
DN 50 for chemical applications.
3. Connect a stainless steel suction pipe
to the suction hose.
4. Connect a stainless steel safety
discharge pipe to the end of the
pressure hose, min. DN 50.
5. Connect an earth strap to discharge
electro-static charging.
6. Connect the electric motor and switch
on speed stage I or stage II.
7. Watch the pressure gauge (the pointer
must be in the negative sector).
Note:
The pump primes immediately without being
lled.
In order to avoid overowing of tanks when
transferring uids, the pump is switched to
speed stage I and nally switched o when
the lling limit is reached.
If a shut-o device is installed
in the pressure side, this must
always remain open when the
pump is running.
4.2.6 Pumping of highly viscous pulpy
product
Start the pump only when
wearing your personal
protective outt.
Starting work
1. Connect and tighten the pulsation
damper.
2. Connect suction and pressure hoses
DN 50 for chemical applications (do not
use corrugated stainless steel hoses).
3. Connect a special suction pipe to the
end of the suction hose.
4. Connect a discharge elbow without
shut-o device to the end of the
pressure hose, min. DN 50.
5. Connect an earth strap to discharge
electro-static charging.
6. Connect and switch on the electric
motor (speed stage I).
7. Watch the pressure gauge on the
suction socket.
Note:
If a shut-o device is installed
in the pressure side, this must
always remain open when the
pump is running.
Caution!
Caution!
Warning!
Caution!
Caution!