Admin Table of Contents
Which pump is use for fire fighting system?
centrifugal pump
A fire-fighting pump is a centrifugal pump which is used for pumping fire-fighting water. Fire-fighting pumps can be designed for transportable use (e. g. on fire-fighting vehicles or as portable fire pumps) or for stationary use (e. g. hydrants, sprinkler systems).
What are fire pumps called?
jockey pump
A jockey pump, also known as a pressure-maintenance pump, is a small apparatus that works together with a fire pump as part of a fire-protection sprinkler system.
What type of pump is a fire pump?
Centrifugal pumps
Centrifugal pumps are the most common fire pumps and are used with most systems. With centrifugal pumps, pressure is developed principally by the action of centrifugal force or spinning. Water in centrifugal pumps enters the suction inlet and passes to the center of the impeller.
What is fire sprinkler pump?
A fire pump is a part of a fire sprinkler system’s water supply and powered by electric, diesel. The pump provides water flow at a higher pressure to the sprinkler system rises and hose standpipes.
What is pump duty?
The pump performance curve is a diagram showing the connection between flow (Q) and generated head (H) or pressure. The system’s characteristics show the pressure loss in the system as a function of the flow. The duty point is the intersection between the pump performance curve and the system’s characteristics.
How many types of fire are there?
Fire is divided into five classes (A, B, C, D, and K) that are primarily based on the fuel that is burning. This classification system helps to assess hazards and determine the most effective type of extinguishing agent.
Why is it called a fire hydrant?
From the 16th century, as wooden mains water systems were installed, firefighters would dig down the pipes and drill a hole for water to fill a “wet well” for the buckets or pumps. This had to be filled and plugged afterwards, hence the common US term for a hydrant, ‘fireplug’.
What makes a fire pump?
The fire pump starts when the pressure in the fire sprinkler system drops below a threshold. The sprinkler system pressure drops significantly when one or more fire sprinklers are exposed to heat above their design temperature, and opens, releasing water.
What are the two main categories of pumps?
Pumps are divided into 2 major categories: Dynamic and Positive Displacement (aka Displacement).
What is purpose of fire pump?
The fire pump delivers the water via the pipe system to the fire sprinklers to suppress the fire.
What is head of a pump?
One of the most misunderstood physical characteristics of a pump is the concept of head. Simply stated: a pump’s head is the maximum height that the pump can achieve pumping against gravity. Intuitively, if a pump can produce more pressure, it can pump water higher and produce a higher head.
What is pump performance?
A pump performance curve indicates how a pump will perform in regards to pressure head and flow. In this example, if pumping against a head of 40 ft using an impeller size of 7.9”, you could pump at a rate of 140 gallons per minute. Typical centrifugal pumps will show an increased flow rate as head pressure decreases.