Application Of Motor-Driven Metering Pumps; Safety Notes - ProMinent alpha Series General Operating Instructions

ProMinent ProMinent ® ®
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 explosion-
threatened workplaces.
®
ProMinent motor-driven metering pumps and accessories are not to be used for the purpose of
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
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 motor-driven metering pumps since this can result in damage to persons and
property, for which no liability will be accepted!
• Install safety devices in the system, e.g. overflow valves!
ProMinent ® motor-driven pumps are oscillating displacement pumps. Irrespective of
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.
Page 5