AUMA PROFOX actuators are proving themselves in the district cooling network of Qatar Cool, one of the leading district cooling suppliers in the Middle East. The compact and smart actuators are installed in the district cooling network for Pearl-Qatar, an artificial island close to Doha, Qatar.

The PROFOX actuators replace actuators of a different brand which, although only a few years old, did not stand up to the process conditions. Failures in the actuator electronics were frequent, and the hard plastic gears were worn out and could no longer deliver the required torque.

PROFOX actuators proved to be the perfect solution for the requirements of Qatar Cool, thanks to their high-quality, high-precision mechanics and their innovative design. A key benefit for the customer is easy operation of the actuators via Bluetooth, using the AUMA Assistant App. This means that the actuators can be easily operated locally, even though they are installed at a height that is difficult to access. In addition, the FOX-EYE indicator light clearly shows the actuator status, even from a distance. Another key reason to opt for PROFOX actuators was their numerous feedback signals, which the customer uses for process supervision.

Five PROFOX PF Q-300 part-turn actuators are currently in operation at Cool Qatar. They control the supply of chilled water from the district cooling network to the main heat exchanger of one of the connected buildings. More are to follow.

AUMA launched the PROFOX actuator series only last year. Providing fast and precise positioning, utmost flexibility and an excellent cost-benefit ratio, the high-performance, compact actuators are suitable for all industry sectors, including water treatment, combined heat and power plants, district heating and cooling, process industries, and shipbuilding.
 

The small Scottish town of Kinlochleven has an extraordinary claim to fame as the first place in the world in which every home was connected to electricity. That was courtesy of a 1907 hydroelectric dam project that generated power for the aluminium smeltery near the town.

Three auxiliary spillways feeding the power plant were mothballed in the late 1960s. Waterflow control specialists Aquatic Control Engineering (ACE) were subsequently tasked with the reinstatement of the spillways, as part of a new drive for local green energy. ACE chose AUMA variable speed electric actuators to drive key penstocks that optimise water flow through the dam system, increasing efficiency and reducing energy requirements.

Paul Hopkins, Managing Director, AUMA Actuators Limited, says: “This project has been an excellent collaboration with Aquatic Control Engineering. Our variable speed electric actuators allow highly accurate levels of flow control when opening and closing penstocks.  

“Maximum efficiency requires that the culvert supplying the hydroelectric station is operated ‘almost full’. This is measured by a water level sensor that signals the AUMA AC intelligent control via a control panel. The AUMA actuator drives the penstock open or closed, and the opportunity to slow the cycle as the penstock reaches the end of the close cycle introduces a degree of self-cleaning for the penstock.”

AUMA SAV variable speed actuators can both start and stop at low speed, increasing through the mid part of the actuation cycle. This means that the inrush current as the cycle starts is tiny compared with a high torque, ‘full-speed’ start. 

The generation plant operates 24/7 and the penstocks are extremely remote so a relatively simple, uninterruptible power supply is used to cover for any loss of power, significantly reducing cabling costs and the overall cost of the project.

The 6 km of concrete aqueduct and 13 km of steel pipe through which water flows to the hydroelectric station are operated to maintain ‘almost full’ flow through a box culvert at the power station end. In the early days, this was a full-time manual job, with an operator remotely stationed to raise and lower penstocks and keeping them clean. This level of intervention contributed to the plant becoming uneconomic and falling into disrepair, closing in the late 1960s. 

In 2016 the current smelter owners SIMEC, supported by Green Highland Renewables, were able to make a substantial investment to bring the hydro power plant back to full operation and boost electricity generation to 27.5 MW.

A new, entirely redesigned version of AUMA Actuators Limited’s proven AUMA Commissioning and Diagnostic Tool (CDT) is now available. The new AUMA CDT version 2020 allows fast and easy setup, operation and diagnostics of AUMA actuators using a Windows laptop.

The modern user interface and comprehensive functions of AUMA CDT help to save time and cost during commissioning, maintenance and troubleshooting. Originally designed for AUMA’s own service experts, the high-performance software tool also offers most functions to registered users. These include setting of tripping torques and end positions, modification of actuator parameters and remote actuator control. The new version also allows users to create service requests and to upload snapshot files with actuator data to the AUMA Cloud for detailed analysis.

Profibus and Modbus master functions are available for control system integration. Comprehensive diagnostic functions, such as a powerful process data monitor and an I/O interface simulator, reduce service times.

The new version of AUMA CDT benefits from a fully optimised communication protocol for Bluetooth connection to the actuator, resulting in considerably faster data transmission. A new centralised AUMA user management system improves protection against unauthorised access.

AUMA CDT supports SA and SQ actuator series with AC 01.2 actuator controls as well as SGx and SVx actuator series. The new version also supports the new PROFOX actuators.

The redesign of the AUMA CDT software underpins the company’s continuous commitment to provide users with the best support tools possible for operating AUMA actuators.

A new version of the AUMA Assistant App for smartphones and tablets is also available. Version 4.0 also provides fast Bluetooth communication and supports AUMA PROFOX actuators.

AUMA CDT is available free of charge from the Software download page. AUMA Assistant App is available free of charge on Google Play and in the Apple App Store.

Weathering the storm of COVID19 and the disruption of the UK’s impending exit from the European Union, AUMA Actuators Limited, the UK trading business of AUMA Group, reports its 2020 sales performance is on budget, with profit performing above target.

AUMA Actuators Limited supplies electric actuators, drives and controls to the water and wastewater sector, oil and gas, energy and processing industries. Performance has been boosted by the company’s preparedness for Brexit, with increased inventory in place prior to the onset of this year’s global pandemic.

Paul Hopkins is managing director, AUMA Actuators Limited. He says: “I’m delighted to share these extremely positive results with our valued partners and employees. We are all aware, 2020 has been no ordinary year for business. As a subsidiary of AUMA Group, our unique sole supplier status has enabled us to deliver products and spares with reduced lead times, at a moment when global supply chains have been severely disrupted.   

“Our excellent performance is the combination of the focus and application of our dedicated team, along with an excellent range of innovative solutions, plus increased demand from customers seeking responsive service and supply. We are an extremely resilient operator, backed by a global parent business, a simplified supply chain and excellent planning.”

On the subject of Brexit, Paul Hopkins continues: “With a number of vaccines now in circulation, we hope that trading in the UK will soon begin to normalise. The UK’s exit from the EU clearly presents a number of challenges, for which we are well prepared. Conversations with our parent company have provided huge reassurance in terms of a seamless transition. We are, and continue to be, here working for our customers, regardless of whatever the economy throws our way.”

AUMA Actuators Limited assembles and supplies its range of actuator solutions from its warehouse and distribution centre in Clevedon, just south of Bristol and close to the M5 for fast, nationwide delivery.

AUMA’s new TIGRON actuators are designed to meet the exacting requirements of the global oil and gas industry. Building on AUMA’s more than 50 years of experience as a leading electric actuator manufacturer, TIGRON combines the highest level of explosion protection, robust design, outstanding ease of operation, and the latest trends in digitalisation. The versatile all-rounder provides safe and reliable valve automation across all application sectors, including oil and gas production, pipelines, tank farms and refineries.

Safe and robust
TIGRON actuators are ATEX and IECEx certified for the highest gas group IIC, which includes the highly flammable hydrogen. Other approvals will follow. The actuators are designed to withstand the harshest environmental conditions, covering a particularly wide temperature range from –65 °C to +75 °C. IP68 enclosure protection and AUMA’s extremely resistant powder coating protect effectively against tropical downpours, ocean spray and desert sandstorms.
For installation in hard-to-reach locations or where vibration is a problem, the controls can be mounted separately, up to 100 m away from the actuator. TIGRON actuators will also be available in SIL versions.

Future-proof
Powerful electronics, innovative sensor systems and a wide variety of interfaces ensure that TIGRON is future-proof as digitalisation advances. Data upload to the AUMA Cloud facilitates predictive maintenance. Low standby power consumption reduces the actuator’s carbon footprint and decreases operating costs.

Easy to use
Excellent usability is another feature of TIGRON actuators. Particularly striking are the large display and the robust Combi-Switch, which can be operated easily even when wearing gloves. An on-board commissioning assistant guides the operator safely through the setting procedure. TIGRON actuators provide non-intrusive setup without requiring additional tools for commissioning.

Versatile
TIGRON actuators work with all types of valves. As a multi-turn actuator, TIGRON is ideal for gate valve automation. It is available in six sizes, providing torques from 10 Nm up to 1,000 Nm. Higher torques can be achieved in combination with multi-turn gearboxes. For ball, butterfly and globe valve automation, TIGRON actuators are combined with part-turn gearboxes or linear thrust units. The smart actuators are suitable for the most challenging automation tasks, such as high-precision operation of control valves or choke valves.

“Our new TIGRON is robust and reliable, easy to use, and a perfect match to all the requirements of the oil and gas industry,” says Kai Ewald, Head of Sales Oil & Gas at AUMA. “TIGRON actuators help plant operators enhance their efficiency and strengthen their market position. With TIGRON, they are well equipped for modern plant automation, today and tomorrow.”

For more information see www.tigron.auma.com