Chemical Technology October 2015

New component seal range is configurable-by-design AESSEAL has launched a completely re- engineered modular component seal range that aims to raise the industry standard and allow configurable component seals to be built to order.

With 10 000 product lines available from stock and over 44 000 product permuta- tions configurable, it offers customers the greatest possible product availability, quality assurance and service. The new range, in development for almost four years, incorporates unique pat- ented features which help to improve pump reliability. These features include improved seal face cooling through directed fluid barrier flow systems, hydraulically balanced seal face technology, and plug-in designs to improve performance and reliability. Incorporating a build-to-order philosophy, the new range offers a larger selection of product variants and standard product lines that can easily be adapted to suit the customer’s requirements.

FOCUS ON PUMPS & VALVES

AESSEAL’s new modular component seal range

seal to easily be selected knowing just the pump type, competitor seal reference, or dimensional information. Formore information contact RobWaites (man- aging director) on tel +27 11 466 6500 or email rwaites@aesseal.co.za

By manufacturing the majority of the parts, and having full control of the supply chain, AESSEAL can now offer a much wider portfolio of seals. The new product range is further sup- ported by the AESSEAL seal-selection app, enabling an equivalent AESSEAL component

SIL assessment of GEMÜ products Together with the independent testing organization EXIDA, GEMÜ has assessed a selection of different products in accordance with SIL. This assessment according to SIL covers the func- tional safety of the products and is used to evaluate the systems in relation to the reliability of fail safe functions. The result is safety-relevant design principles which must be complied with in order to minimize the risk of a malfunction. SIL itself is ameasure of the probability that a system will correctly fulfil the required fail safe functions for a specific time period. In addition to pilot valves, the GEMÜ products as- sessed include globe and diaphragm valves and electri- cal position indicators. By assessing the product selection referred to here, GEMÜ is complying with its customers’ requirements pri- marily from the process and manufacturing industries. With the data made available, these can now carry out assessments of entire plants. GEMÜ is one of the world’s leading manufacturers of valves, measurement and control systems. Over the course of more than 50 years, this globally focused, independent family owned enterprise has established itself in important industrial sectors thanks to its inno- vative products and customised solutions for process media control. A broad based modular system and adapted auto- mation components mean that individualised standard products and customised solutions can be combined to make over 400 000 product versions.

New generation of liquid ring vacuum pumps The new series of TRVX Pompetravaini single stage, variported, liquid ring vacuum pumps introduced a new design in performance and reliability con- cepts. This is the result both of Pompetravaini’s 80 years of experience and of the views and suggestions of its end users; in other words, a milestone in the way Liquid Ring Vacuum Pumps (LRVPs) are designed and manufactured to provide the end users with tangible benefits. This new hydraulic profile allows for a performance increase of over 10 % over traditional LRVP designs. These increases apply to efficiency and to operational cost savings achieved over the entire pump life. There are numerous advantages to LRVPs, of which the following are just some: • The pump weight is on average 30 % less than traditional designs. • Compact dimensions and volume of 40 % less than traditional designs. • Central body impeller housing with integrated suction and discharge mani- folds, a featurewhich reduces pump components and increases robustness. • Suction, discharge port plates and impeller in stainless steel allowing greater reliability. • Standard ISO 3069/DIN 24960 mechanical seals fitted, easily obtainable, reducing component stocking. • Mechanical seals can be replaced without disassembly of the pump reduc- ing downtime. • External precision regulation of the impeller shaft. Easy maintenance and performance optimisation assembly time and cost. • The length between bearing supports is 25% less than traditional pump de- signs with consequent reduction of eventual vibration and shaft deflection. • Connections are universally flanged to meet both DIN-EN and ANSI stan- dards. The TRVX is “a true leader in its own class” with capacities from 690 m³/h up to 2 000 m³/h with a maximum vacuum of 33 mbar abs. With this range it covers many of the industrial applications out in the market. For more information or a quotation, contact Air & Vacuum Technologies which is the official and sole agent for the full Pompetravaini LRVP range in southern Africa. Tel: 0861 VACTEC (822 832), burnm@vactech.co.za • Single and direct service liquid connections. • Up to 50 % service liquid usage reduction.

For more information contact Ivona Jovic on tel: +49 (0) 7940 123 708, email: ivona.jovic@gemue.de or go to www.gemu-group.com.

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Chemical Technology • October 2015