PUMPS, VALVES & ACTUATORS PRODUCTS & APPLICATIONS TAKE PRIME POSITION PUMP AND MIXER COMBINATION MEANS NO MORE BLOCKAGES
Industry 4.0 demands integrated communication across all levels right up to field devices. As a result, Industrial Ethernet is gradually replacing traditional fieldbuses. And this is nowhere truer than in the food, pharmaceutical and biotechnology sectors, as well as water treatment facilities or beverage bottling plants, where operators have to comply with strict requirements on traceability. Bürkert now offers a range of new positioners and process controllers Type 8692 / 8693 + 8792 / 8793, featuring Industrial Ethernet and a Bürkert system bus interface (büS). The positioners and controllers
support EtherNet/IP, PROFINET (Conformance Class B (CC-B)) and Modbus TCP. The protocols enable extensive diagnostics functions (e.g. monitoring, limit value definition of operating parameters; messages in accordance with NAMUR NE107) to help improve plant availability. The integrated two-port switch allows for star, line and ring topologies and, thanks to MRP and DLR, ensures fail- safe communication right up to the valve. The integrated büS interface enables efficient communication between individual sensors and actuators of the Bürkert device platform (EDIP), allowing for rapid networking of system solutions. All platform participants can be parameterised and configured via the standard software tool ‘Bürkert Communicator’. The new positioners have been
optimised for combination with Bürkert process control systems (ELEMENT) and enable an array of combinations with all control valve types, also from third party manufacturers. The in-house control valves of the ELEMENT series include, for example, globe, angle and diaphragm seat valves, featuring stainless steel valve bodies Type 316L. The extensive range of components means virtually all application needs can be met, especially as the positioners can be mounted directly on the valve or remotely, i.e. separate from the valve.
Bürkert
www.burkert.com
Expensive and inconvenient pump failures at some of the UK’s sewage treatment works (STW) is often caused by a lack of reliable mixing of unscreened sludge - before it enters pumping systems. This was the situation at Flag Fen STW, one of Anglian Water’s main sites in Peterborough, where problems were occurring with blocked lobe pumps on a strain press feed application. Unscreened sludge was being imported into the
Flag Fen works which contained large accumulations of rag and surface crust. Reliable mixing held the key to finding an effective solution. P&M PUMPS, the UK distributor of VAUGHAN PUMPS, was invited to provide a self-priming chopper pump on a sale or return basis for a 4 week trial. The Vaughan model SP4C pump would be working alongside a new Gorman Rupp T4 trash pump with belt drive and 11Kw motor on a head-to-head evaluation basis. The Vaughan chopper pump exceeded the
performance of the GR pump in effectively handling the unscreened, rag-laden sludge with far fewer blockages. However, it was still susceptible to the large masses of reweaved material entering the pump suction line and it was clear to Anglian Water that there was a need to condition the sludge on a
permanent, ongoing basis. As a result, and in addition to the strain press feed
pump, P&M Pumps supplied and installed (on a free trial basis) a mixing and conditioning solution to Anglian Water. This consisted of a Vaughan model SE8N chopper pump, powered by an 18.5Kw motor which was free standing along with an attached nozzle manifold, all of which was secured to an existing submersible mixer gantry after being positioned by crane. Following a short period of operation and a
recirculation flow of 360m³/hr the imported sludge in the tank was effectively mixed, and the surface accumulation was removed (apart from a large floating mass that had been static in the centre of the tank). The immediate result following the installation of the mixing system was a period of 5 days without a single strain press feed pump blockage. In addition, the performance of the sludge centrifuge improved resulting in a uniform performance and increase in throughput due to higher feed solids being achieved.
P&M Pumps
www.pumpmix.co.uk
INTELLIGENT ACTUATION AT FUEL HUB CUT DISPOSAL COSTS
By using a Borger Rotary Lobe Pump, a disposal company has made savings on high procurement and operation costs through the use of its PE tanks as mobile units. Rather than operate vacuum pumps,
the disposal company wanted an easier and more cost-effective way to use PE tanks in order to avoid high vehicle tare weight. Thanks to its compact design, the
Rotork IQ3 intelligent multi-turn electric actuators have been chosen to increase the number of wirelessly controlled actuators at a liquid storage provider in the UK. The actuators have been commissioned for two Navigator Terminals road fuel and crude storage tanks at its North Tees hub in Middlesbrough. The site, which is split into Inland and Marine terminals, has
connecting pipelines to a neighbouring Navigator Terminals storage facility, Seal Sands. It is connected to the Ekofisk North Sea crude oil terminal and pipeline, also at Seal Sands. The IQ3 actuators have been fitted to 24” gate valves which
control the flow of crude oil in and out of one of the storage tanks at the company’s Marine Terminal. The actuators communicate using HART protocol via a
Pepperl+Fuchs Bullet WirelessHART Adapter, which has enabled seamless integration with the site’s existing Rosemount wireless network. It will also allow the operator to add more wireless compatible actuators and control instruments to the site in future. All IQ3 commissioning, configuration and control can also be
carried out remotely using an intrinsically-safe Rotork Bluetooth Setting Tool. Torque levels, position limits and indication functions can be adjusted while two-way data communication allows for multiple actuator configurations. The setting tool can also be used to extract information including operational starts profiles, starts per hour and temperature or vibration logs from a datalogger. This data can be securely transferred via the cloud to a PC running Rotork Insight 2 software for diagnostics and asset management. IQ3 actuators are ATEX certified as explosion-proof, suitable for
use in Safety Integrity Level 2/3 applications and watertight to IP66/68 standard – submersible at 20 metres for 10 days.
Rotork
www.rotork.com PROCESS & CONTROL | MAY 2019 29
Borger Rotary Lobe Pump can be installed on a pick-up truck and powered hydraulically using the PTO (power take-off) from the pick-up truck’s engine. A three-way valve enables several tanks to be loaded in the pick-up truck or filled on a trailer. The reversible option of the Borger
pump means that it is also possible to discharge tanks on the vehicle and then pump to other tankers.
Borger
www.boerger.com
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