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2. Affinity laws - Wikipedia

   en.wikipedia.org/wiki/Affinity_laws

   The following laws are derived from the two coefficient equations by setting the coefficient for one operating condition (e.g. Q 1, n 1, D 1) equal to the coefficient for a different operating condition (e.g. Q 2, n 2, D 2). Law 1. With impeller diameter (D) held constant: Law 1a. Flow is proportional to shaft speed: [2]

3. Variable speed fire pump controller - Wikipedia

   en.wikipedia.org/wiki/Variable_speed_fire_pump...

   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 ...

4. Variable displacement pump - Wikipedia

   en.wikipedia.org/wiki/Variable_displacement_pump

   A common type of variable-displacement pump used in vehicle technology is the axial piston pump. This pump has several pistons in cylinders arranged parallel to each other and rotating around a central shaft. A swashplate at one end is connected to the pistons. As the pistons rotate, the angle of the plate causes them to move in and out of ...

5. Circulator pump - Wikipedia

   en.wikipedia.org/wiki/Circulator_pump

   This avoids one of the principal challenges faced by the larger, two-part pumps: maintaining a water-tight seal at the point where the pump drive shaft enters the pump body. Small- to medium-sized circulator pumps are usually supported entirely by the pipe flanges that join them to the rest of the hydronic plumbing. Large pumps are usually pad ...

6. Trump's transition team to arrive at Pentagon on Monday - AOL

   www.aol.com/news/trumps-transition-team-arrive...

   President-elect Donald Trump's transition team will arrive at the Pentagon on Monday, a Pentagon spokesperson said, after a delay in signing an agreement after the Nov. 5 election to formally ...

7. Play Just Words Online for Free - AOL.com

   www.aol.com/games/play/masque-publishing/just-words

   If you love Scrabble, you'll love the wonderful word game fun of Just Words. Play Just Words free online!