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