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2. 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 ...

3. Glossary of firefighting equipment - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_firefighting...

   A Variable Speed (VFD) Fire Pump Controller is a fire pump controller that is able to vary the speed of the motor depending on the demand of the fire pump, resulting in the ability to hold a constant discharge pressure.

4. Waterous Company - Wikipedia

   en.wikipedia.org/wiki/Waterous_Company

   Waterous Company is an American manufacturer of fire pumps, hydrants and fire suppression equipment. Based in South St Paul , Minnesota . [ 1 ] Originally part of Waterous Engine Works Co. Ltd , the fire equipment operation in Winnipeg was relocated to St Paul, Minnesota in 1886 [ 2 ] [ 3 ]

5. Governor (device) - Wikipedia

   en.wikipedia.org/wiki/Governor_(device)

   A governor, or speed limiter or controller, is a device used to measure and regulate the speed of a machine, such as an engine.. A classic example is the centrifugal governor, also known as the Watt or fly-ball governor on a reciprocating steam engine, which uses the effect of inertial force on rotating weights driven by the machine output shaft to regulate its speed by altering the input flow ...

6. Today's Wordle Hint, Answer for #1274 on Saturday, December ...

   www.aol.com/todays-wordle-hint-answer-1274...

   Today's Wordle Answer for #1274 on Saturday, December 14, 2024. Today's Wordle answer on Saturday, December 14, 2024, is DROOL. How'd you do? Next: Catch up on other Wordle answers from this week.

7. Booster pump - Wikipedia

   en.wikipedia.org/wiki/Booster_pump

   Multi-story buildings equipped with fire sprinkler systems may require a large booster pump to deliver sufficient water pressure and volume to upper floors in the event of a fire. Such pumps are often powered by a diesel engine dedicated to this purpose. The engine needs a fuel tank and an automatic controller that will start the booster pump ...