PRODUCTS & APPLICATIONS PUMPS, VALVES & ACTUATORS AUTOMATE AND BENEFIT
Failure to automate the boiler blowdown process is causing a number of industrial steam users to overspend on labour and energy costs, says Mike Griffin, Emerging & Innovative Technologies manager Northern Europe at Spirax Sarco. He believes the critical boiler blowdown process, which needs to be activated regularly for any active steam boiler, can often inflate the running cost of a typical boilerhouse, and prevent it from becoming a bona fide unmanned plant. Griffin commented: “
...there is a
notable tendency for many engineers to persist in using the manual valve supplied with the boiler purely because it has always been there.” A bottom blowdown valve is key to
ensuring the boiler remains clean, and that the furnace tube at the bottom of the boiler does not foul. However, by remaining loyal to a manual blowdown process, engineers risk either failing to remove sufficient contaminants, or purging useful thermal energy and treated water. Griffin said: “By automating the
blowdown process, engineers are able to remove any element of guesswork from the equation, which avoids the risk of too much or too little purging – both of which can prove extremely costly over the long term. “When excess energy costs and
labour are taken into account, an automatic valve can pay for itself in as little as 18 months to two years.” It can also keep the boilerhouse operational, efficient, and compliant,
even when an engineer isn’t present. SIX KEY REASONS WHY PUMP BOOSTERS FAIL
Spirax Sarco
www.spiraxsarco.com/global/uk
Learning to recognise a few recurring issues common to pump booster sets could make a difference to your site’s heating, cooling and waste-water systems, says Dura Pump. Booster set pumps help keep
water pressure steady and strong. They’re often a vital part of a site’s water system – so it’s important to keep them in good shape. With that in mind, the
engineers at Dura Pump have put together the following list of 6 common problems: 1. Noise or vibration 2. Leaks 3. Warm water from cold taps
4. Low or inconsistent water pressure 5. The pump failing to cut in, providing no boost 6. Legionnaires/contamination “These issues can be a nuisance,
and are sometimes disruptive,” said John Calder, from Dura Pump. “But they are easily prevented with proper care and servicing. A good, regular maintenance routine is the best defence against pump breakdowns and spiralling callout charges. “If anything on this list sounds
familiar to you, we recommend getting advice from an engineer with booster set specialism. Some early expert advice can save a lot of
bother down the line.” Dura Pump is also promoting its
range of Proserv maintenance packages. With Dura Pump Proserv, customers receive 24/7 rapid response, regular servicing, and full specialist support on all booster sets - at a fixed, all-inclusive price.
Dura Pump
www.durapump.co.uk
LIQUID RING PUMPS FOR DEMANDING PROCESSES
Atlas Copco has launched two new liquid ring vacuum pumps for use in industrial processes. Capable of operating reliably in humid and dusty environments, the sturdy AWS and AWD units are designed to deliver vacuum to a range of industries “Our latest liquid ring pumps
combine a low-maintenance design with highly efficient performance and near-silent running,” said UK vacuum product manager Richard Oxley. “They are extremely well suited for wet or corrosive processes and offer short lead times and minimum life cycle costs.” Capacities for liquid ring pumps
typically range from 170 to 37,500m³/h. Lower capacity units below 5500m³/h are available as single-stage AWS models or two-
stage AWD models pre-configured with direct-drive options in 50 and 60 Hz speeds. For larger installations, high capacity AWL pumps with belt or gearbox transmission are available. Single stage AWS pumps offer
efficiency above 200 mbar (absolute), so are suitable for general process applications such as filtration and dewatering, and pump down or evacuation duties. Meanwhile, the two-stage AWD
pumps provide continuous high performance at operating pressures below 200 mbar (absolute). Two synchronised pump chambers work in series for improved efficiency on continuous process
duties such as drying, degassing exhausting and solvent recovery. All AWS and AWD pumps can
achieve ultimate pressure levels as low as 30mbar (absolute). They are available in three pre- engineered modular configuration designed for once-through, partial recirculation of total recovery of service water.
Atlas Copco Compressors
www.atlascopco.com
ELECTRIC QUARTER TURN ACTUATOR IS ATEX APPROVED
Following on from the launch of the HQ005 actuator, Actuated Solutions has announced the ATEX approval of its HQ006 electric quarter turn actuator. The product’s ATEX rating of EX II 2G, Exd IIB T4 confirms its suitability for use within explosive environments. Designed for quarter turn
applications, such as small ball, butterfly, plug valves and dampers, the HQ006 is relatively small yet provides high output torques of up to 60Nm. Other key features and
benefits include: a reversible motor with low current consumption, two M20 cable entries, manual override functionality, four limit switches and a high visibility beacon. The HQ006 also has a push button terminal strip, an anti- condensation heater, and its IP67 housing is hard anodised prior to painting to increase corrosion resistance. Managing director, Paul
Slaughter, said: “We’re really pleased to be able to offer the market small electric actuators
suitable for ATEX environments, not many actuators have ATEX approval and certainly not for small bore valves, we’re sure the unique mounting system covering, F4, F5 & F7, along with the wide range of voltages which are available from, 24V to 240V, will help customers enormously.” The HQ006 is available in
Europe exclusively from Actuated Solutions.
Actuated Solutions
www.actuated-solutions.co.uk
14 SEPTEMBER 2017 | PROCESS & CONTROL
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