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Xylem Bell & Gossett System Syzer mobile app for Android
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aying that it is widely recognised as the industry standard for calculating flow rates and pressure drops in piping systems, Xylem, a water technology provider, has announced that its popular Bell & Gossett System Syzer software program is available as a mobile application for the Android operating system. It adds that the app can be downloaded for free from the Google Play Store, and that HVAC professionals with a smartphone or smart mobile device can now have the same functionality and program features while working in the field. According to Xylem, the System Syzer application is based on the novel plastic wheel calculator designed by Bell & Gossett’s Gil Carlson. Widely recognised as the “Father of Modern Hydronics,” Carlson first introduced the System Syzer in 1963, and it has since been distributed to well over 100,000 engineers and tradesmen, it claimed. The company has listed the following features, functions and several critical calculations the System Syzer can perform:
n Calculating the friction loss and velocity through various pipe types and sizes based on existing fluid conditions n Calculating the relationship between fluid temperatures, system flow and heating/ cooling load n A unique Cv tool that shows the relationship between Cv, flow and head and accounts for fluid properties n A Pipe Length/Pressure Drop tool that interfaces with other calculators to view the relationship between pipe length, friction loss and total head loss n A bundled Circuit Setter/Triple Duty Valve calculator that is very useful during the design phase to help predetermine valve settings, and out in the field, to determine flow through the valves based on pressure drop readings Xylem revealed that the System Syzer was released as an app for Apple iPhone and iPad devices last year. It is also available for free download on all iPad and iPhone devices from the Apple App Store.
Bell & Gossett BPX brazed plate heat exchangers
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ylem has announced the addition of four new Bell & Gossett BPX brazed plate heat exchangers to its line of large plate heat exchangers. The 3” and 4” brazed plate heat exchangers, models BP432, BP433, BP434, and BP435, are ideal for large hydronic heating applications, refrigerant evaporators, condensers with large chillers and many other applications requiring flow rates up to 800 GPM, the manufacturer has claimed. The company lists the following product features and advantages: n The compact, low-cost units with innovative corrugated plate design provide very high heat transfer coefficients. n The heat exchangers use stainless steel plates and are vacuum brazed together to form a durable product that withstands both high pressure and high temperature. n All four models have a design pressure of 435 psig, min/max design temperature of 310/450°F, lifting lugs, and support/ mounting feet. n Additionally, all models are designed in accordance with ASME Section VIII, div. 1 and include a “U” stamp as a standard offering. n They provide high rates of heat transfer, which requires less surface area than conventional shell and tube exchangers. Other advantages of the BPX heat exchangers versus conventional shell and tube units include: n One-sixth the size n One-fifth the weight
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Climate Control Middle East April 2013
n Uses only one-eighth the liquid n Requires one-third to one-fifth the surface area According to Xylem, the new models are available for selection and pricing in the System Syzer selection and configuration software.