ProMinent alpha Series, Hydro Series, Meta Series, Vario Series, Sigma Series General Operating Instructions
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General Operating Instructions
ProMinent® Motor-Driven Metering Pumps
and Hydraulic Accessories
®
ProMinent
alpha
Meta
Vario
Sigma
Hydro
Makro/ 5
Makro TZ
Two sets of operating instructions are necessary to ensure safe operation of the metering pumps corresponding to their
intended purpose: The product-specific operating instructions (e.g. for Sigma) and the general operating instructions
for ProMinent
Both are only applicable in conjunction with each other.
Please completely read through these operating instructions first! Do not discard!
The warranty shall be invalidated by damage caused by operating errors!
Part No. 987702 ProMinent Dosiertechnik GmbH · 69123 Heidelberg · Germany BA MOZ 015 05/06 GB
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motor-driven metering pumps.
Legal notice
Page 2
Legal notice:
General Operating Instructions for
ProMinent® Motor-Driven Metering Pumps
© ProMinent Dosiertechnik GmbH, 1995
Address:
ProMinent Dosiertechnik GmbH
Im Schuhmachergewann 5-11
69123 Heidelberg
Germany
info@prominent.com
www.prominent.com
Subject to technical modifications.
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Table of Contents
Table of Contents
User Information ................................................................................................................................................................................ 4
1 Application of Motor-Driven Metering Pumps
2 Safety Notes
3 Mounting
4 Installation, hydraulic
4.1 Standard Installation
4.2 Notes on Installation on Intake Side
4.3 Notes on Installation on Delivery Side
4.4 How not to install pumps
4.5 Special Notes on Installation
5 Installation, electrical
5.1 Motor
6 Start-Up
7 Maintenance
8Troubleshooting
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9 Other important considerations for dosing pumps in ex-zones
9.1 Application in accordance with regulations
9.2 Safety instructions
9.2.1 Safety equipment
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9.2.2 EU declaration of conformity / certification
9.3 Assemble
9.4 Installation, hydraulic
9.5 Installation, electrical
9.6 Commissioning
9.7 Maintenance
9.8 Troubleshooting
9.9 Repair
9.10 Decommissioning
10 Hydraulic Accessories
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10.1 Overview and Notes on Accessories
10.2 Back pressure valve / relief valve
10.3 Pulsation Dampers
Appendix
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Warranty Application for Metering Pumps and Accessories
Data for Calculating Metering Line
Installing Drawing
Safety declaration form
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User Information
User Information
Please read through the following user guidelines. Familiarity with these points ensures optimum
use of the operating instructions.
Key points in the text are indicated as follows:
• Enumerated points,
왘 Hints
Working Guidelines:
NOTE
Notes on operation.
Safety Guidelines:
WARNING
There is a danger to life or the risk of serious injury if the notes on safety are disregarded!
CAUTION
There is a danger of slight injury and damage to property if the notes on safety are
disregarded!
IMPORTANT
There is a danger of damage to property if the notes on safety are disregarded.
These general operating instructions for motor-driven metering pumps and hydraulic assemblies
apply only in conjunction with the product-related pump operating instructions for e.g. alpha,
Vario, Meta, Sigma, Hydro, Makro/ 5 and Makro TZ motor-driven metering pumps.
Page 4
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Application of Motor-Driven Metering Pumps / Safety Notes
1 Application of Motor-Driven Metering Pumps
ProMinent® motor-driven metering pumps and accessories are to be used solely for the purpose
of metering liquid media!
In explosion-threatened workplaces in zone 1, device category II 2G of explosion group II C
the pump may not be operated without the corresponding rating plate (and the corresponding
EC conformity declaration) for pumps for explosion-threatened workplaces in accordance with
guideline 94/9/EC of the European guidelines. The explosion group, category and type of
protection shown on the marking must correspond to or exceed the conditions prevailing in the
intended area of application.
All other uses or modifications are prohibited!
Pumps may never be operated in explosion-threatened workplaces without a corresponding
rating plate (and the corresponding EC conformity declaration) for pumps for explosionthreatened workplaces.
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ProMinent
metering gasses and solids!
Refer to the relevant product-related operating instructions and product cataloque for the
technical data of the type of motor-driven metering pump used!
Decisive criteria relating to the intended use of the pumps are
• EX-protection of the pump
• Resistance of parts coming in contact with metered medium
• Pressure and temperature of metered medium
motor-driven metering pumps and accessories are not to be used for the purpose of
2 Safety Notes
WARNING
• Explosion-proof pump only: it is essential that you observe the contents of section 9!
• Immediately switch off the pump in case of emergency! Use the power switch on
the pump or an emergency switch in your immediate operating environment!
• Pumps for radioactive medium must not be shipped through standard channels!
• Observe applicable national regulations for installation abroad!
CAUTION
• Do not obstruct or block access areas!
Pumps must be accessible at all times to facilitate operation and maintenance.
• Only specially trained and authorized persons are permitted to carry out maintenance
and repairs on metering pumps and their periphery!
• Always depressurize the liquid end first before carrying out any work on the pump!
• If hazardous or unknown metering media are used, discharge and flush the liquid end
before carrying out any work on the pump!
• Observe safety specifications for liquid metered media! Corresponding protection and
emergency measures must be implemented prior to initial operation.
• Always wear protective clothing (safety goggles, gloves,...) when handling hazardous or
unknown liquid media! This applies particularly when working on the liquid end!
• Do not use parts which have not been tested and approved by ProMinent for assembly of
ProMinent
property, for which no liability will be accepted!
• Install safety devices in the system, e.g. overflow valves!
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whether the delivery line is closed, e.g. by closing off the delivery line or by closing a valve,
the pressure produced by the pump can reach a multiple of the permissible working
pressure of the system or of the metering pump. This can result in lines bursting with
dangerous consequences particularly in the presence of aggressive or toxic media!
• Piston pumps must always be equipped with a dry-run protection facility to avoid the
pump packing running dry as this may cause overheating and thus premature wear.
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motor-driven metering pumps since this can result in damage to persons and
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motor-driven pumps are oscillating displacement pumps. Irrespective of
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Safety Notes / Mounting
DN
fig.1
m
m
fig. 2
fig. 3
Head valve
Intake valve
Liquid end
f
f
f
IMPORTANT
• Based on state-of-the-art technology, the manufacturer carefully selects the materials
•Avoid over-feed with positive pressure difference (at least 1 bar) between discharge
• Only specially trained personnel are permitted to operate the metering pump.
3 Mounting
IMPORTANT
• Mount the metering pump upright with the feet on a horizontal base. Refer to the
• The frame or the foundation for mounting the pump must be designed such as to
for parts coming into contact with the medium as specified by the customer.
The manufacturer shall not be liable for any damage caused by metering other media
or media which has been modified with regard to its properties (concentration, density,
temperature, additives, impurities etc.).
and suction sides.
The operator must ensure by applying appropriate accident prevention measures that
operating personnel are not endangered under given operating conditions (pressure,
temperature, aggressivity etc.).
corresponding data sheets for the dimensions (m) of the securing holes.
ensure the unit is free of vibration and stable.
• Install pump at convenient operating level and mount such that the valves are vertical:
head valve always at top and intake valve always at bottom.
• Ensure adequate clearance (f) in area of liquid end as well as intake valve and head
valve so that these parts can be easily removed if required.
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Mounting / Installation, hydraulic
fig. 4
A
A
fig. 5
DN
pipe
DN
pump valve
DN
pump valve
fig. 6
Pressure
gauge sleeve
Pipe
(delivery line)
Pressure
control valve
Intake valve
Pipe
(intake line)
Pressure
gauge sleeve
fig. 7
Steel/stainless steel
pipe
Flexible pipe adapter
Plastic connecting piece
• Set up the pump such that the stroke length adjustment, indicator scale A, oil level
indicator, oil filler and drain plugs as well as the valves are easily accessible for
servicing.
• Ensure nominal diameters of pipes and installed fittings are the same size or larger
than the nominal diameters of the pump valves (intake and head valves).
4 Installation, hydraulic
WARNING
• Explosion-proof pump only: it is essential that you observe the contents of section 9!
IMPORTANT
• Observe the relevant national directives with regard to installation!
• In order to verify the pressure conditions in the piping system it is recommended to
provide connection options for manometer close to the suction and pressure port.
• Connect pipes to the pump such that there is no stress or strain whatsoever acting
on the pump, such as offset, weight or expansion of the pipe. Only use a flexible pipe
adapter for connecting steel/stainless steel pipes to plastic pump housings.
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Page 7
Mounting
Delivery line
Metering tank
PD
4.1 Standard Installation
Diagram 8
Metering pump Dirt trap
Metering valve Solenoid valve
Adjustable pressure control valve
Pulsation damper
(Overflow valve)
Foot valve with sieve filter Float valve
Pressure gauge Filler device
Ball check valve Siphon vessel
Shut-off cock valve
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Installation, hydraulic
h
fig. 9
fig. 10
fig. 11
fig. 12
4.2 Notes on Installation on Intake Side
NOTE
Avoid the intake line running empty:
• Install foot valve at end of intake line when the pump is higher than the max. liquid level
in the intake tank.
• The calculated size h (see diagram) must not be greater than the specified pump
suction head divided by the density of the delivered medium.
• Use short intake line and avoid thin-walled hoses.
NOTE
Connect intake line to tank slightly above the base of the tank.
IMPORTANT
Provide suitable means for retaining impurities!
Otherwise they can cause faults in the pump and system!
E.g. install a dirt trap (mesh size 100–400 µm depending on medium and type of metering
pump).
NOTE
Install pump with inlet on intake side for gas-emitting media.
NOTE
Intake via siphon line for high-level tanks without connection facilities at base of tank:
• Install filler facility for siphon line (intake line).
• Observe acceleration pressures due to the longer intake line.
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Page 9
fig. 15
Installation, hydraulic
fig. 13
fig. 14
4.3 Notes on Installation on Delivery Side
IMPORTANT
Do not exceed permissible nominal pressure! Otherwise the pump may be damaged!
Provide an overpressure facility if the permissible pressure in the pump head can be
exceeded, e.g. by closing a shut-off element or a blockage in the line:
• Install overflow valve in the delivery line or
• use an overflow valve integrated in the pump housing (depending on type, refer to
data sheet of the type of pump used).
The following points must be observed with regard to the overflow line when using an
overflow valve:
• Route the overflow line with a drop into the supply tank under atmospheric pressure
or into an open runoff channel.
• Connect the overflow line to the intake line, however, only if there is no check valve in
the intake line.
IMPORTANT
Do not use a non-return check valve on the intake side for the overflow return as it may
cause the intake line to tear off.
IMPORTANT
Cut off the return flow from the main line!
Otherwise unwanted mixing in the metering line can occur.
• Install the metering valve at the injection point.
IMPORTANT
Dampen pulsation by installing pulsation dampers if
• low-pulsation delivery flow is required for process reasons;
• acceleration forces have to be reduced due to the geometry of the piping system.
Page 10
The following can occur if acceleration forces are not dampened
• Fluctuations in delivery, metering faults, pressure surges, valve knocking and wear
as a result of cavitation on the intake and delivery side of the pump.
• Mechanical destruction of pump, leakages and knocking of valves as a result of the
permissible maximum pressure being exceeded on the pump delivery side.
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