The VACON 100 FLOW is an AC drive designed to improve flow control for multi-pump applications in which several pumps are used in place of a single one. Multiple pump solutions help lighten the load by spreading it across several pumps, thus offering greater energy efficiency and system redundancy – if one pump fails, the others can take up the additional load. For operations in which demand fluctuates throughout the course of the day, such as a municipal water system providing peak water consumption in the morning and minimal usage at night, the VACON 100 FLOW offers unsurpassed control of flow and pressure for a maximum of eight pumps (or fans) without the need for an external controller — communication between drives is provided by integrated RS-485. The VACON 100 FLOW AC Drive is equipped with built-in Ethernet as standard.
The VACON 100 FLOW offers three multi-pump control solutions: single drive multi-pump, multi-drive multi-master and multi-drive multi-follower. For single-drive installations, one AC drive controls a lead pump. If demand exceeds the capabilities of the pump, additional fixed-speed pumps are brought online directly or with a soft starter. The VACON 100 FLOW allows the user to choose between fixed setups and solutions in order for the lead and auxiliary pumps to alternate roles to equalize wear and tear. In multi-master mode, each pump is controlled by its own AC drive.
(As published in the November 2014 edition of Maritime Reporter & Engineering News - http://magazines.marinelink.com/Magazines/MaritimeReporter)
been successfully used to repair a variety of leaks in marine and offshore applications, underwater cable, chemical plants, refineries, municipal water and wastewater utilities, electric utilities, irrigation, pools and spas, commercial, industrial, and municipal buildings; schools; hospitals
Financing the Municipal, Tax-Exempt Workboat Sector. Poring over any of the many marine publications that seemingly arrive daily in your mailbox or inbox, you can get an idea of the depth and breadth of the current state of U.S. commercial marine vessel shipbuilding. Given the tumult in the oil market and
Today’s economy is tough enough for the commercial sector. For federal, state and municipal authorities – and in an atmosphere of shrinking tax revenues and sequestration – the task of securing mission-appropriate assets can be even tougher. At this year’s National Sheriff’s Association Conference (of all
China is recognized as the flagship event in North China. The Exhibition is presented by the China Association of the Shipbuilding Trade, Dalian Municipal Government; coorganized by (he Dalian Shipbuilding Industry Corp. (Group), Port of Dalian Authority, Liaoning Province Society of Naval Architects
sacrificing utility or features, the Metal Shark 75’ Endurance and the Moose M3 models both provide multi-missioned platforms for the cash-strapped municipal sector. A crowded field for today’s domestic boatbuilders and a highly competitive marketplace finds builders trying to position their output and
facing all stakeholders today. Shipbuilding Domestic builders are only now exiting a period of sustained prosperity, marked by robust federal and municipal spending, the successful recapitalization of inland vessels and offshore OSV fleets, and blue water Jones Act building program the likes of which
mollusks, which attach themselves to underwater structures, pose a particular threat to water intake pipes for electric power plants, factories and municipal wat e r and wastewater t r e a t m e n t plants. Also at risk are ships. Two Coast Guard vessels had to have emergency repair work this year
shipyard has built more than 365 vessels. Today, Blount Boats’ clients include Fire Island Ferries, Casco Bay Island Transit District, Puerto Rico and Municipal Islands Maritime Authority, Spirit Cruises, Circle Line Statue of Liberty (Hornblower), South Ferry on Shelter Island, Long Island, and the Kwajalein
in Vietnam. It has also sold military and nonmilitary special-purpose patrol craft 23 to 53 feet to numerous foreign countries and to U.S. state and municipal governments. All Uniflite boats are of fireretardant fiberglass construction, and its recreational and commercial craft are all classified and label
. “That’s basically deploying the microscope and using the image feed for water monitoring. Early detection for harmful algae could be done in municipal water systems, lakes and rivers or offshore but basically in any body of water where you would normally take a water sample,” Jones said. There is still
tube IMPACT, and the D Collar style (as equipped at the show). Turning on a dime at more than 60 KT, the vessel represents a major breakthrough for municipal and military customers, both in terms of maneuverability and new features that promise to dramatically improve boat handling and navigation for small
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This directory section is an editorial feature published in every issue for the convenience of the readers of MARITIME REPORTER. A quick-reference readers’ guide, it includes the names and addresses of the world’s leading manufacturers and suppliers of all types of marine machinery, equipment, supplies and
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