Table of Contents [hide]
- 1 How do emergency fire pumps work?
- 2 What activates a fire pump?
- 3 How does a jockey pump and fire pump works?
- 4 How is an emergency fire pump tried out?
- 5 What is the difference between a jockey pump and a fire pump?
- 6 What is a diesel fire pump?
- 7 How long do fire pumps last?
- 8 How do you take performance of an emergency fire pump?
- 9 What are the parts of a fire pump?
- 10 What is a fire sprinkler pump?
How do emergency fire pumps work?
Operation of emergency Fire Pump
- Check lubrication.
- Check salt water cooling.
- Turn on fuel.
- Decompress the cylinders.
- Crank the fly wheel.
- When fly wheel is freely rotating compress the cylinders.
- Once engine starts firing adjust the throttle.
What activates a fire pump?
The turn-on for the main fire pump is a water pressure switch. When there’s a fire, sprinkler heads are going to activate and spray water. This loss of water in the sprinkler system causes the pressure to drop. When the pressure drops, the main fire pump turns on.
How does a jockey pump and fire pump works?
A jockey pump is a small pump connected to a fire sprinkler system to maintain pressure in the sprinkler pipes. This is to ensure that if a fire-sprinkler is activated, there will be a pressure drop, which will be sensed by the fire pumps automatic controller, which will cause the fire pump to start.
Do fire pumps run all the time?
Posted March 3rd, 2021 by Fire & Life Safety America Diesel engine driven fire pumps have always been required to run weekly for 30 minutes. This allows the engine to establish a running speed and confirm that no problems exist such as overheating or lack of combustion air for the engine.
How many hours diesel driven fire pump should run?
The service tank supplying the fuel to the Diesel driven power source, must have the capacity to enable the pump to run on full load for a minimum of 3 hours , sufficient reserves of fuel must be available on board, outside the machinery space of category – A , for enabling the pump to run on full load for an …
How is an emergency fire pump tried out?
Diesel power source of pump started in cold condition of 0° C by hand or by power at least 6 times within a period of 30 minutes and at least twice within 1st 10 minutes. Tank to have sufficient fuel for at least 3 hours and reserve fuel outside main machinery space to allow the pump to run for additional 15 hours.
What is the difference between a jockey pump and a fire pump?
A jockey pump, also know as a pressure maintenance pump, maintains the pressure in the fire sprinkler system to avoid non-emergency starting of the main fire pump. The jockey pump is designed to start before the main fire pump and return the fire protection system to its minimum static pressure.
What is a diesel fire pump?
Diesel fire pumps, also known as booster pumps, are used to boost water pressure from sources that do not provide adequate water pressure for the sprinklers to operate to a given specification. Diesel fire pumps are often used where there is a potential reliability problem with the local electric grid.
Why is it called a jockey pump?
On a fire protection system requiring a fire pump, there is a small pump that maintains pressure above the pressure settings of the larger fire pump. Hence the name “jockey pump.” The purpose of a jockey pump is to maintain pressure in a fire protection piping system so the larger fire pump does not need to run.
How often are fire pumps tested?
Therefore, it’s your responsibility to check your local guidelines often to prevent an accidental violation. The 2017 NFPA 25: Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems states that you must test your industrial fire pump every year with a flow test.
How long do fire pumps last?
Failure to maintain a fire pump will minimize its useful life; the typical lifespan of the equipment is about 20 years. And replacing a fire pump costs a lot of money, as it’s the single-most expensive component of any fire protection system.
How do you take performance of an emergency fire pump?
What are the parts of a fire pump?
The pump body is the part of the fire pump that controls and directs the flow of water from the inlet side through to the discharge. Within the pump body are three main parts: the intake section, the volute section, and the discharge section.
What is a portable fire pump?
A portable fire pump system is firefighting apparatus that can be easily transported to a fire scene and quickly made operational to deliver large quantities of water onto the fire.
What is a fire water pump?
A fire pump is a specialized water pump used in firefighting. While most water pumps are designed to distribute water at a set or variable pressure, a fire pump is part of a high-pressure system.
What is a fire sprinkler pump?
A fire pump is a part of a fire sprinkler system’s water supply and powered by electric, diesel or steam. The pump intake is either connected to the public underground water supply piping, or a static water source (e.g., tank, reservoir, lake). The pump provides water flow at a higher pressure to the sprinkler system risers and hose standpipes.