Search results
Results from the WOW.Com Content Network
A jockey pump, also known as a pressure-maintenance pump, is a small pump connected to a fire suppression system near the fire pump and is intended to maintain pressure in a fire protection piping system. These pumps recover pressures lost from gradual, slow pressure declines in a system due to temperature changes, trapped air escapement, or ...
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 ...
An early device used to squirt water onto a fire is a squirt or fire syringe. Hand squirts and hand pumps are noted before Ctesibius of Alexandria invented the first fire pump circa the 2nd century B.C., [3] and an example of a force-pump possibly used for a fire-engine is mentioned by Heron of Alexandria.
The basic function of a pump is to do work on a liquid. It can be used to transport and compress a liquid. In industries heavy-duty pumps are used to move water, chemicals, slurry, food, oil and so on. Depending on their action, pumps are classified into two types — Centrifugal Pumps and Positive Displacement Pumps. While centrifugal pumps ...
The rotational energy typically comes from an engine or electric motor. They are a sub-class of dynamic axisymmetric work-absorbing turbomachinery. [1] The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser or volute chamber (casing), from which it exits.
Peerless Motor Company factory in Cleveland, circa 1910s. Peerless Motors was established in Cleveland, Ohio, in 1900 at 43 Lisbon Street. It began manufacturing automobiles while using De Dion-Bouton engines under license from the French company. [4] Engineer Louis P. Mooers designed the first Peerless models, as well as several proprietary ...
Over the years, fire sprinklers have become mandatory safety equipment" [8] in some parts of North America, in certain occupancies, including, but not limited to newly constructed "hospitals, schools, hotels and other public buildings", [8] subject to the local building codes and enforcement. However, outside of the US and Canada, sprinklers ...
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 ]