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NEW SERVICE-FRIENDLY SHORT SHAFT COUPLING
NEW SERVICE-FRIENDLY SHORT SHAFT COUPLING
KTR HAS LAUNCHED A NEW SHAFT coupling, the ROFLEX, meeting DIN 740 with a design which is both short and service friendly.
The ROFLEX is a short shaft coupling in which the input and output shafts can be pushed together between 3 and 6 mm, depending on the size. The torque is transmitted via elastomer packages, which at the same time compensate for misalignments and dampen shocks and torsional vibrations. Should the elastomers fail, due to extreme loads, the fail-safe coupling continues to hold the torque.
The ROFLEX is made of grey cast iron and is available in two types: In type N, both the pocket and the cam part consist of standard hubs. In the SH SPLIT design the cam hub is split. Here, the hub is specifically and mechanically separated into two halves by ‘fracture cutting’, or ‘cracking’. The resulting fracture surfaces centre both hub halves precisely with each other, which makes incorrect assembly almost impossible. The hub halves can be mounted on block, and the fit of the bore remains unchanged. Depending on accessibility, the hub can be pushed on for assembly, or the two hub halves can be joined around the shaft; thus the split hub can be radially installed and removed without dismantling the adjacent units. “As a rule, we recommend that our customers fit the SH-SPLIT hub onto the motor shaft. This makes the coupling easier to assemble overall and in case of service there is more space available, for example to exchange the elastomer packs”, said Michael Brüning, Product Manager at KTR. “In addition, it allows the user to carry out the direction of rotation check on the engine without the coupling hub.”
The ROFLEX has been assessed and confirmed according to the European ATEX product directive 2014/34/EU and is suitable for use in potentially explosive atmospheres. Core industries are pumps and compressors; other areas of application in general mechanical engineering are gearboxes, fans and belt drives.
Both types are currently available in seven sizes for torques from 65 to 790 Nm. Five more sizes in the power range up to 5,000 Nm are to be added by mid-2022.
www.ktr.com
Booster set launched to coincide with new ErP regulations
WILO UK, HAS ANNOUNCED the launch of a cold-water booster set, the ‘Wilo-ISAR MODH/SCe’, which aligns with changes to the Energy related Products (ErP) regulations.
The new Wilo-ISAR MODH/ SCe cold water booster set range was launched to coincide with the latest changes to ErP regulations and motor efficiency. The regulations ensure products meet specific measures relating to their energy usage to reduce environmental impact, improve energy efficiency and cut greenhouse gas emissions.
The new booster set is an evolution of the Wilo-COR MHI/ SCe booster set range. The evolved product incorporates Wilo’s new Medana range of stainless steel horizontal multistage pumps and now offers a captive nut connection. This new feature will improve the ease of maintenance, as well as reducing the number of connection points between the pump and the manifolds, giving the booster set a reduced footprint on site.
Key advantages also include an increased range of flows from 2-72 m 3 /hour able to deliver pressures up to 7bar. The booster set also comes complete with fully automated controls via variable speed drives and with standard features for BMS connectivity included. Approved to the latest Drinking Water Regulation 4 requirements, the ISAR MODH1/ SCe has been designed to maximise required hydraulic efficiency with the added benefit of a compact design.
Designed for light commercial applications, the Wilo-ISAR MODH1/SCe also features an increased temperature range allowing for installation in a wider range of projects, as well as a new housing and commercial building design.
wilo.com/gb/en/
OUTDOOR PUMPS WITH PERMANENT MAGNET MOTORS UP TO 10HP
ARMSTRONG FLUID TECHNOLOGY has announced that Design Envelope pumps with permanent magnet motors are now available NEMA 4X/IP66 rated, for outdoor installation.
Featuring advanced performance mapping technology and load-limiting logic, the new pumps reduce energy consumption by as much as 30% compared to pumps supplied with a loose variable speed drive. Together with new, more efficient pump hydraulics, the new 1 to 10hp pumps can save an additional 20% compared to competing integrated products with induction motors.
Other features of the new Design Envelope outdoor pumps include a cover to protect the touchscreen user interface from dirt and sunlight, an overhead weather shield that protects the motor fan from ice seizures, and factory-tested NEMA 4X rated controls which are TL approved.
The optional Parallel Sensorless control provides additional energy savings through best-efficiency staging, while the Pump Manager service provides pump performance tracking along with alerts, alarms and data storage.
“The conventional approach to rooftop and outdoor pumps is to install VFDs in a central, outdoor-rated control panel, separate from the pumps. This adds unnecessary costs and requires a larger footprint,” said Zeljko Terzic, Global Offering Manager, Pumps at Armstrong Fluid Technology. “Our new Design Envelope pumps feature integrated controls for a reduced footprint and substantially reduced installation costs.”
www.armstrongfluidtechnology.com
ONLINE ASSET MONITORING
THE NEW WEG MOTION FLEET MANAGEMENT solution provides online asset monitoring to allow predictive maintenance and total cost of ownership (TCO) reduction.
One of the main factors that affects the productivity and profitability of a company is unplanned production downtime. Most corrective maintenance events could be avoided if machine and equipment parts were being continuously monitored.
Aware of this issue, WEG has developed a software solution that enables users to check the operating status of low and medium voltage motors and drives (VSDs and soft-starters), gearboxes, gearmotors and other assets installed in any industry or facility.
Through periodic data collection and advanced data processing, valuable insights can be obtained at the edge and in the cloud. From this information, it is possible to establish predictive maintenance plans taking into account the operating condition of the fleet.
The WEG Motion Fleet Management system helps simplify and speed up the operation, maintenance and management of industrial plants. Based on cloud computing technology, the performance of assets can be monitored at any time, from any part of the world. This approach reduces unplanned downtime, optimises repair actions and speeds up the decision-making of the operations and maintenance team. The result is increased uptime and reduced drive fleet TCO.
WEG Motion Fleet Management includes dedicated and robust hardware for data acquisition, data processing on the edge and in the cloud, periodic fleet reports, maintenance order creation and management, asset prioritisation tools. Also included are an Exchange module for data integration (via REST API) and a Specialist module with analytics and artificial intelligence for failure diagnosis and consumption analysis.
bit.ly/MoFeMa
NEW BOREHOLE PUMP COOLING SHROUDS
DEEP WATER PUMPING SPECIALIST, CAPRARI, has introduced a new range of cooling shrouds for borehole units. Compared to more traditional models, these ‘light versions’ are set to offer users more competitive (and simultaneously more robust) water system solutions.
Thanks to their optimised design, the light cooling shrouds will ensure correct water speed around the motor, giving perfect cooling and durability over time. They also represent the best solution for vertical installation of borehole electric pumps – in a tank or well – even at high temperatures.
The shrouds are made of AISI 304 stainless steel, further ensuring high levels of corrosion resistance, and they can be certified for use in drinking water systems, according to D.M 174, ACS, WRAS and KTW standards.
