Notes on safety of ProMinent¨ metering pumps | Dulcodes |
¥Installations in potentially explosive atmospheres must be inspected by an Òaccredited qualifiedÓ person. This applies in particular also for intrinsically safe electrical circuits.
¥Drive motors must be secured by an appropriate motor protection switch. A motor protection approved for this application must be used for
¥Observe all relevant standards e.g. DIN EN 60079, DIN EN 50020, DIN VDE 0165 and/or DIN VDE 0118 ÒInstalling electrical equipment in
¥When installing the metering pump, observe the directives for the installation of devices in
* previously ElexV
¥Observe documents supplied with individual electric components!
¥On principle, metering pumps in potentially explosive atmospheres must be equipped with a safety overflow valve at the outlet side of the pump (serves as protection against overheating due to overload and against sparks produced by shock due to overload which has led to the breakage drive parts.)
¥When using with flammable media:
- Diaphragm pumps with mechanically actuated diaphragm: no additional measures necessary, however, version with diaphragm rupture indicator, version ExÒiÓ*, must be used on principle.
- For all metering pumps for metering inflammable media applies: starting up and emptying only supervised by a competent person.
- Inflammable media may only be lifted with stainless steel liquid ends. - For exceptional cases, where this is not possible, also PTFE with carbon may be used, our versions TT_ are made of conductive plastics. In this case, special attention must be paid by the user due to the lower mechanical stability.
¥If using the metering pump for Europe e.g. the European operatorÕs guideline 99/92/EC* (ATEX 137**), (in Germany implemented via the new operating safety ordinance (Official Federal Gazette for 2002, Part 1, No. 70, issued in Bonn 2.10.2002) and the German dangerous chemicals ordinance))!
* previously Ex Vo, Vb F
**previously ATEX118A
¥Observe also all relevant standards e.g. DIN EN
¥Note all national directives which apply to the installation!
¥Wear parts (diaphragms, bearings etc.) of metering pumps used in potentially explosive atmospheres must be replaced after having completed 90% of their nominal product life.
¥The lubricant supply must be regularly checked for lubricated pumps, for instance by checking the fill level, visual inspection for leakages etc.
¥The proper general function, in particular of the drive, must be safeguarded by regular inspections (leakages, noises, temperatures, possible discoloration due to excess temperatures....).
¥Use original spare parts should exchange become necessary!
¥Check that the pressure relief valve downstream from the pump is functioning correctly! The pressure relief valve must prevent the gearbox from being overloaded and over- heating in
¥When cleaning plastic parts, attention must be paid to not generating any electrostatic charge by rubbing excessively. - see danger sign.
¥These measures are the minimum protection measures specified by ProMinent. Should the user know about any further risks, it is his duty to eliminate them by taking corresponding measures.
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