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NEW PRODUCTS

Safety-certified valve actuators TÜV certification achieved by AUMA confirms that the company’s SQ .2 part-turn actuators, SA .2 multi-turn actuators and AC .2 actuator controls in SIL version comply with the highest safety requirements. The actuators have fully achieved the latest IEC 61508 edition 2 certification and are approved for safety-related systems up to SIL 3 (for redundant system architecture). The TÜV certification also applies to low-temperature versions for temperatures ranging from -60 to +60°C. The safety function of AUMA’s SIL actuators can be configured with different seating criteria, including forced limit or torque seating to protect the mechanical integrity of the valve. If required by the application, different seating criteria for the safety function and standard actuator functionality can be set. In addition to the company’s SIL devices designed to meet the highest safety requirements, AUMA offers a Safety Figure Calculated (SFC) range of actuators that is adaptable with a high degree of configuration capability and cost flexibility. These actuators — with safety parameters assessed by exida — are suitable for applications with modest SIL1 or SIL 2 safety requirements. The SFC product range comprises SA and SQ actuators with AM and AC (standard version) actuator controls plus GK, GST and GS gear boxes. Barron GJM www.barron.com.au

Design utility for depressurisation systems The UniSim Design Blowdown Utility, designed specifically for oil and gas, petrochemical, and chemical industry applications, assists in designing systems to allow for safe depressurisation of process equipment. It also helps companies manage capital costs by more accurately selecting the right construction materials and blowdown system sizes needed for the site. Understanding depressurising behaviour in a blowdown system is critical to the function of the system and, ultimately, the safety of the facility and employees. Rapid depressurising and gas expansion can result in very low temperatures, potentially putting equipment at risk of brittle fracture if the construction material goes below its ductile-brittle transition temperature. In addition, the entire pressure relief system, including safety valves, relief orifices, flare piping and knockout drums, must be sufficiently sized to handle the flow rates that occur during blowdown, in addition to the piping and capacity of the flare system. For new constructions, an accurate prediction of the minimum vessel wall temperature during blowdown is important for the selection of the appropriate construction material, for the elimination of overdesign and with the additional benefit of lowering project costs. Similarly, having an accurate prediction of the maximum flow rate during blowdown is important for the reduction of overdesign associated with the relief valve/ network sizing, without compromising on safety. For existing facilities, blowdown studies can prompt changes in operating procedures, process equipment material or capacity in order to avoid brittle fracture during blowdown. Honeywell Process Solutions www.honeywellprocess.com

58 INSIGHTS 2016

Profile for Westwick-Farrow Media

Sustainability Matters Dec 2015/Jan 2016  

Sustainability Matters is a bi-monthly magazine showcasing the latest products, technology and sustainable solutions for industry, governmen...

Sustainability Matters Dec 2015/Jan 2016  

Sustainability Matters is a bi-monthly magazine showcasing the latest products, technology and sustainable solutions for industry, governmen...