Process Equipment Update


Rupture disc features full-open relief area


T


he SANITRX LPX, by Continental Disc Corporation,


is a stainless-steel, reverse- acting rupture disc designed specifically for the European pharmaceutical, food and beverage and biotech industries. This differential pressure relief device features an instantaneous full-open relief area for protecting equipment, vessels, systems and people from an overpressure condition. Features include: 316


or 316L SS materials of


the standard low pressure allows for significant cost and time savings benefit in that there is no requirement of third party inspection because PED is not applicable; meets ASME BPE and USP Class VI criteria (SF1 surface finish (0.5 Ra


Fig. 1. The SANTRIX LPX Rupture Disc.


construction; excellent cyclic durability; 90 per cent maximum recommended operating ratio; available in sizes 40 mm, 50mm and 80mm; precision scoring on the vent side of the disc dome assures optimum cleanability and improves rupture disc performance; aAll rupture discs include sanitary, environmentally-friendly, non-toxic packaging. Benefits of the SANITRX LPX include:


micrometers or better; solid metal construction provides cleanability for CIP/ SIP applications; fully traceable materials including USP Class VI certified gaskets; all components are


free of polishing compounds, release agents and animal derivatives); Lower installation and maintenance costs and increased productivity. ■


Enter 24 or ✔ at www.engineerlive.com/epe


Continental Disc Corporation is based in Liberty, MO, USA. www.contdisc.com


Air compressor for use in harsh environments


I


n 2009, DV Systems in Barrie Ontario, Canada, started the process of developing more advanced compressor technology: a low-cost rotary screw compressor with a low amp start and high performance, designed for commercial applications. DV Systems came to the conclusion that a screw compressor with a Vacon X Series of variable speed drives would give optimum performance. The NEMA 4 (IP66) enclosure rating of


Precise control increases process profit margins


I


t is common when choosing a temperature control system to make decisions


by comparing manufacturer catalogue data; but this can be misleading as heating and cooling power specifications give very little indication of performance.


The primary role of a


thermoregulator is to control and change the temperature of an application and this is dependent on the thermoregulators ability to transfer heat energy to the process. The efficiency of thermal energy transfer depends on the volume of heat transfer fluid, the surface area exposed to the heat transfer fluid and the flow rate of the fluid over the surface of the heat exchanger. Good temperature control is about efficient heat transfer to the application which results in smaller less


24 www.engineerlive.com expensive units, reduced


resource consumption and increased process profit margins.


To demonstrate the benefit


of effective heat transfer Huber produced a range of over 200 case studies showing the real- time performance of Unistats in


combination with a range of reactors,


providing valuable performance data when choosing the right system for the process. When the priority is reproducible results and tight temperature control,


thermodynamically there is no alternative. ■ Enter 24A or ✔ at www.engineerlive.com/epe


Peter Huber Kältemaschinenbau GmbH is based in Offenburg, Germany. www.huber-online.com


Fig. 1. A Huron air compressor by DV Systems equipped with a Vacon X Series drive.


the Vacon X drive gave maximum flexibility, since DV Systems could incorporate the drive inside the compressor enclosure, creating a clean finished compressor package with modular enclosure. Enclosure was required to maintain a stable operating temperature, and it also reduces audible noise and enhances the appearance of the unit. The NEMA 4 inverter enables the unit to operate in harsh environments without the risk of damaging the drive and its related components. Further cost reduction was achieved by integrating the compressor controller directly into the Vacon X Series memory rather than using an additional control module. Pressure and temperature sensors are terminated in the drive, and the required intake valve and cooling system commands are also integrated. This makes it very easy to set-up and operate the compressor, ensuring it receives a good reception on the market. ■


Enter 24B or ✔ at www.engineerlive.com/epe


Vacon Plc is based in Vantaa, Finland. www.vacon.com


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