HEALTH & SAFETY ADVANCED SIGNALLING SYSTEM
REMBE
Non-invasive signalling for processes that require a high level of tightness
Over the past few years significant advances have been made in the performance and capability of pressure relief technology - essential safety components found within chemical processing plants . With non-invasive signalling devices , which make it impossible for the process medium to escape , processes with critical pressures and demanding media can also be reliably monitored .
For customers for whom compatibility with harsh operating conditions is of paramount concern the NIMU ( Noninvasive monitoring unit ) works well . NIMU is a reusable rupture disc signalling system designed for rapid notification of rupture disc activation even in the harshest chemical environments . The REMBE NIMU sensor is not in contact with the process meaning it is not affected by challenging process conditions or corrosive media .
The intrinsically safe NIMU is installed into a tapping within the outlet of the rupture disc holder , completely isolated from the process so it does not create any leak paths and is not damaged following disc activation - critical for chemical customers where leak paths cannot be tolerated .
With the traditional membrane type signalling devices , false alarms were unfortunately commonplace , as the harsh operating conditions could cause the device to activate even if the disc itself had not opened . This false signalling would cause unnecessary and costly process downtime . Unlike these traditional devices , the NIMU is not negatively affected by the process .
Additionally , membrane detection systems are single use , meaning additional replacement costs . With the NIMU this additional cost is eradicated – the NIMU enhances overall dependability of rupture disc installations while reducing long-term expenditure . Not only is the signalling device fully reusable following disc functioning it is also reusable after routine maintenance checks . Easy to inspect during such maintenance routines , its closed circuit design allows it to be refitted into the holder by the same operator inspecting the disc , simplifying and quickening the maintenance process , a must to meet the demanding productivity requirements within the chemical processing sector .
When used in combination with the REMBE iQ Safety Cockpit the operator can be instructed in the event of a system disruption and can implement the relevant emergency management protocols . The affected employees can be individually informed of a process shutdown and coordinated response to identify the cause and get the plant back up and running as quickly as possible .
For further information , please visit www . rembe . de
68 PECM Issue 50