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Variable Speed Fire Pump Controllers were invented and released with a UL Listing for fire pump service in 2003 by Master Control Systems, Inc. [1] [2] Paragraph 10.5.5 in the 2003 edition of NFPA-20 recognized Variable Speed as an accepted method for operating the fire pump. Then in the NFPA-20 2007 edition, section 10.10 was added to clarify ...
This is the first time the E-card itself could be emailed directly by the card sender to the recipient rather than having an announcement sent with a link to the card's location at the E-card site. [7] Between Sep 1996 and Thanksgiving 1997, [8] a paper greeting card company named Blue Mountain developed E-cards on its website. Blue Mountain ...
The engines were made in 1 hp, 1.5 hp, 2 hp and 2.5 hp versions. It was known as the model D309 or simply the R.A. Lister. The engine was a 4 stroke poppet valve engine, and a simple centrifugal governing system. Preserved Lister Type D 1.5HP 1954 Sectioned Lister D Sectioned Lister D. Throughout the years of production, the engine changed very ...
If you use a 3rd-party email app to access your AOL Mail account, you may need a special code to give that app permission to access your AOL account. Learn how to create and delete app passwords. Account Management · Apr 17, 2024
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Specific speed N s, is used to characterize turbomachinery speed. [1] Common commercial and industrial practices use dimensioned versions which are of equal utility. Specific speed is most commonly used in pump applications to define the suction specific speed —a quasi non-dimensional number that categorizes pump impellers as to their type and proportions.
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FeliCa is a contactless RFID smart card system from Sony in Japan, primarily used in electronic money cards. The name stands for Felicity Card.First utilized in the Octopus card system in Hong Kong, [1] the technology is used in a variety of cards also in countries such as Singapore, Japan, Indonesia, Macau, the Philippines and the United States.