ProMinent Duodos 20 PPS User manual

Duodos 20 PPS/PVT
Air-driven double diaphragm pump
Assembly and operating instructions
A2726
EN
Original operating instructions (2006/42/EC)Part number: 981452 Version: BA DUO 015 05/20 EN
Please carefully read these operating instructions before use. · Do not discard.
The operator shall be liable for any damage caused by installation or operating errors.
The latest version of the operating instructions are available on our homepage.

In order to make it easier to read, this document uses the male
form in grammatical structures but with an implied neutral sense.
The document is always aimed equally at women, men and
gender-neutral persons. We kindly ask readers for their under‐
standing in this simplification of the text.
Please read the supplementary information in its entirety.
Information
This provides important information relating to the
correct operation of the unit or is intended to make
your work easier.
Warning information
Warning information includes detailed descriptions of the haz‐
ardous situation, see
Ä Chapter 2.1 ‘Labelling of Warning Informa‐
tion’ on page 6 .
The following symbols are used to highlight instructions, links, lists,
results and other elements in this document:
Tab. 1: More symbols
Symbol Description
Action, step by step.
⇨Outcome of an action.
Links to elements or sections of these instructions or other applicable documents.
nList without set order.
[Button] Display element (e.g. indicators).
Operating element (e.g. button, switch).
‘Display/GUI’ Screen elements (e.g. buttons, assignment of function keys).
CODE Presentation of software elements and/or texts.
General non-discriminatory approach
Supplementary information
Supplemental directives
2

Table of contents
1 Function and identification.................................................... 4
1.1 Function........................................................................ 4
1.2 Nameplate and identification........................................ 5
2 Safety and responsibility....................................................... 6
2.1 Labelling of Warning Information.................................. 6
2.2 User qualification.......................................................... 8
2.3 Intended use................................................................. 8
2.4 General safety information on the Duodos................... 9
2.4.1 Safety information on the medium to be pumped
and the diaphragm..................................................... 9
2.4.2 Safety information on ambient conditions................ 10
3 Transport and storage......................................................... 11
3.1 Transport.................................................................... 11
3.2 Storage....................................................................... 11
4 Assembly of the pump........................................................ 12
4.1 Installation environment.............................................. 12
4.1.1 Fastening the double diaphragm pump................... 14
4.2 Outdoor installation..................................................... 14
4.3 Design of the suction side........................................... 14
4.4 Compressed air supply............................................... 15
5 Operation of the double diaphragm pump.......................... 16
6 Checking tightening torque prior to commissioning............ 17
7 Commissioning................................................................... 18
7.1 Pre-commissioning checks......................................... 18
7.2 Priming........................................................................ 19
7.3 Interruption to operation.............................................. 19
8 Troubleshooting and fault elimination................................. 20
9 Maintenance of the double diaphragm pump...................... 23
9.1 Maintenance of the diaphragm................................... 24
9.2 Maintenance of the slide rod....................................... 27
9.3 Maintenance of the ball valves................................... 28
10 Disposal of used parts........................................................ 31
11 Technical drawing............................................................... 32
11.1 Exploded drawing of the pump................................. 33
12 Spare parts......................................................................... 34
12.1 Repair set, air valve with sensor............................... 34
12.2 Repair set, diaphragm with valves............................ 35
13 Performance curves............................................................ 36
14 Technical data..................................................................... 37
15 Declaration of Conformity................................................... 38
16 Index................................................................................... 39
Table of contents
3

1 Function and identification
1.1 Function
A2984
Fig. 1: Duodos: Air-driven double diaphragm pump.
The Duodos is an air-driven double diaphragm pump.
The Duodos is run-dry safe and self-priming.
The pump capacity of the double diaphragm pump can be con‐
trolled by changing the pressure in the air supply. The air control is
designed for oil-free operation. The Duodos is suitable for the
transport of liquid chemicals (media).
The Duodos double diaphragm pump transports media up to a
delivery height of 7 metres. It is essential that you note the pump
characteristic curve Ä Chapter 13 ‘Performance curves’
on page 36 , as the pump capacity is seriously dependent on the
back pressure.
Check the material tolerability when selecting your double dia‐
phragm pump. Also consider the density, viscosity, solids content
and temperature of the medium being pumped.
Tab. 2: Permissible values for the medium
Design Temperature of the medium
PP version (PPS): 10 ... 80 °C
PVDF version (PVT): -13 ... 93 °C
Viscosity of the medium: max. 200 mPas
Solids: < 2 mm
Function and identification
4

1.2 Nameplate and identification
A2980
7
6
5
43
2
1
9
8
Fig. 2: Nameplate 1
1 Check number
2 CE mark
3 Designation of origin
4 Serial number
5 Month and year of manufacture
6 Order number
7 Model designation (type)
8 Place and country of manufacture
9 Manufacturer
A2981
www.prominent.com
Int: 1/4“ BSP(F) - Ext.: 3/4“NPT
FLUID IN / OUT:
MAX. FLUID PRESS.: 7 bar / 100 psi
AIR PRESSURE 1.5-7 bar
5
4
3
2
1
Fig. 3: Nameplate 2
1 Manufacturer’s website
2 Permissible air pressure
3 Maximum feed pressure
4 Liquid inlet and outlet
5 Dimensions/ thread, [INT] = input / [Ext.] = output
Type Pump capacity Seals Slide rod Part no.
Duodos 20 PPS 0 ... 20 l/min EPDM Corrosion-proof steel 1103381
Duodos 20 PVT 0 ... 20 l/min PTFE Hastelloy® C 1103378
Type Housing Diaphragm Valve balls Valve seats Part no.
Duodos 20 PPS PP Santoprene®PTFE Corrosion-proof
steel
1103381
Duodos 20 PVT PVDF PTFE PTFE PVDF 1103378
Nameplate
Identification and material
Function and identification
5

2 Safety and responsibility
2.1 Labelling of Warning Information
These operating instructions provide information on the technical
data and functions of the product. These operating instructions pro‐
vide detailed warning information and are provided as clear step-
by-step instructions.
The warning information and notes are categorised according to
the following scheme. A number of different symbols are used to
denote different situations. The symbols shown here serve only as
examples.
DANGER!
Nature and source of the danger
Consequence: Fatal or very serious injuries.
Measure to be taken to avoid this danger.
Description of hazard
– Denotes an immediate threatening danger. If
the situation is disregarded, it will result in fatal
or very serious injuries.
WARNING!
Nature and source of the danger
Possible consequence: Fatal or very serious inju‐
ries.
Measure to be taken to avoid this danger.
– Denotes a possibly hazardous situation. If the
situation is disregarded, it could result in fatal
or very serious injuries.
CAUTION!
Nature and source of the danger
Possible consequence: Slight or minor injuries.
Material damage.
Measure to be taken to avoid this danger.
– Denotes a possibly hazardous situation. If the
situation is disregarded, it could result in slight
or minor injuries. May also be used as a
warning about material damage.
NOTICE!
Nature and source of the danger
Damage to the product or its surroundings.
Measure to be taken to avoid this danger.
– Denotes a possibly damaging situation. If the
situation is disregarded, the product or an
object in its vicinity could be damaged.
Introduction
Safety and responsibility
6

Type of information
Hints on use and additional information.
Source of the information. Additional measures.
– Denotes hints on use and other useful informa‐
tion. It does not indicate a hazardous or dam‐
aging situation.
Safety and responsibility
7

2.2 User qualification
WARNING!
Danger of injury with inadequately qualified per‐
sonnel
The operator of the system / equipment is respon‐
sible for ensuring that the qualifications are ful‐
filled.
If inadequately qualified personnel work on the unit
or loiter in the hazard zone of the unit, this could
result in dangers that could cause serious injuries
and material damage.
– All work on the unit should therefore only be
conducted by qualified personnel.
– Unqualified personnel should be kept away
from the hazard zone.
The pertinent accident prevention regulations, as
well as all other generally acknowledged safety
regulations, must be adhered to.
Training Definition
Instructed personnel An instructed person is deemed to be a person who has been instructed and,
if required, trained in the tasks assigned to him and possible dangers that
could result from improper behaviour, as well as having been instructed in the
required protective equipment and protective measures.
Trained user A trained user is a person who fulfils the requirements made of an instructed
person and who has also received additional training specific to the system
from the manufacturer or another authorised distribution partner.
Trained, qualified per‐
sonnel
A trained, qualified employee is deemed to be a person who is able to assess
the tasks assigned to him and recognize possible hazards based on his
training, knowledge and experience, as well as knowledge of pertinent regula‐
tions. A trained, qualified employee must be able to perform the tasks
assigned to him independently with the assistance of drawing documentation
and parts lists. The assessment of a person's technical training can also be
based on several years of work in the relevant field.
Electrical technician An electrical technician is able to complete work on electrical systems and rec‐
ognise and avoid possible dangers independently based on his technical
training and experience as well as knowledge of pertinent standards and regu‐
lations. An electrical technician must be able to perform the tasks assigned to
him independently with the assistance of drawing documentation, parts lists,
terminal and circuit diagrams. The electrical technician must be specifically
trained for the working environment in which the electrical technician is
employed and be conversant with the relevant standards and regulations.
Service The Service department refers to service technicians, who have received
proven training and have been authorised by the manufacturer to work on the
system.
2.3 Intended use
Correct and proper use:
nThe pump is intended for the transport of liquids.
nOnly use the pump in accordance with the technical data and
specifications set out in these operating instructions.
Safety and responsibility
8

2.4 General safety information on the Duodos
2.4.1 Safety information on the medium to be pumped and the diaphragm
Please ensure when handling hazardous substances that you have
read the latest material safety data sheets provided by the manu‐
facturer of the hazardous substances. The measures required are
described in the material safety data sheet. Check the material
safety data sheet regularly and replace, if necessary, as the hazard
potential of a substance can be re-evaluated at any time based on
new findings.
The system operator is responsible for ensuring that the material
safety data sheets are available and that they are kept up to date,
as well as for producing an associated hazard assessment for the
workplaces affected.
The service life of the diaphragm cannot be precisely specified.
You therefore need to assume that the diaphragm will rupture and
that liquid will then escape.
You should also prevent particles of the faulty diaphragm entering
the medium being pumped. You can prevent contamination,
for example by filtration, installation of a hose rupture indicator or
other measures appropriate for the respective process.
In the event of a diaphragm rupture, the pumped medium can enter
the air system of the double diaphragm pump and from there into
the atmosphere. If the feed chemical is a dangerous, harmful or
toxic substance, the air outlet must be routed to a suitable area
where safe disposal is possible.
Danger from hazardous substances!
Fig. 4: Handling hazardous sub‐
stances
Service life of the diaphragm
A2992
Fig. 5: The service life of the dia‐
phragm
In the event of a diaphragm rupture
Safety and responsibility
9

2.4.2 Safety information on ambient conditions
Before working on the double diaphragm pump, check whether it is
necessary to close the compressed air lines and vent the double
diaphragm pump.
Before undertaking any maintenance and repair work, close off the
compressed air supply, discharge the compressed air and detach
the air supply line from the double diaphragm pump. These meas‐
ures depend on the configuration of your compressed air supply.
The line to the discharge side of the double diaphragm pump may
be under pressure and must likewise be vented if required.
The pump can also become hot when conveying hot liquids. There
can then be hot surfaces on the pump. Bear this in mind and take
suitable measures to reduce any hazards.
Depending on the operating conditions, the maximum sound pres‐
sure level of the device can reach 88 dB ± 3 dB. Bear this in mind
and take appropriate measures to reduce any impact caused by
this sound pressure level. The type and implementation of suitable
measures depends on the local circumstances and is the responsi‐
bility of the system operator.
nTake suitable measures to protect the device from environ‐
mental influences when operating outside such as:
– UV radiation
– Humidity
– Frost, etc.
Check that all fastening elements with sealing rings are correctly
seated before commissioning the double diaphragm pump. The
seals may “creep” so that the fastening elements may come loose
over time.
Fig. 6: Ambient conditions
Compressed air
Hot surfaces
Maximum pump sound pressure level
91 dB
Operation in the open air and out‐
doors
Check the fastening elements are cor‐
rectly seated
Safety and responsibility
10