0
There is a suction line on every apparatus with a pump. The engineer, who drives the rig, connects this line to the hydrant and to the pump suction. Some equipment has this line pre-connected to the pump inlet.
In many fire hydrant systems there is enough pressure to fill and pressurize an ordinary hose (of large diameter) running from the hydrant to the pumper truck's inlet. That way, there is very little "suction" required in the pump, since the water is already being delivered with some amount of pressure.
If it is "dry hydrant" with no pressure, then suction is required.
Edit: Typically it is a Firefighter that 'snubs' the hydrant, not the Engineer. It is the Engineer's job to 'Position' the apparatus before transferring the engine into 'Pump' (typically, once the apparatus engine is transferred to 'Pump', it is stationary throughout the incident). There are different options for water 'Intake', they can be long leads whereby a supply line can be a smaller diameter (2 1/2") or a 'Short Sleeve' (4") direct to pump diameter where the Pumper is 'Positioned' close to the hydrant snubbed. There are also situational logistics which require two Pumpers (or more) to 'Relay' a supply line due to the fact that the total amount of hose on a given Pumper is less then the distance from the fire to the hydrant. It is the Engineer's job to figure out what pressure is incoming from the supply line and the amount of nozzle pressure required for firefighting at the nozzle. This determines what pressure you need to be pumping at. This pumping pressure must take into consideration elevation, friction loss of pressure in the amount of hose laid out, etc. It can be a life or death calculation for the Firefighter at the nozzle's fighting end which could very well be 40 stories above the Engineer manning the pump.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
What is a good sentence for hydrant?
i saw the fire department working on a fire hydrant
What is the NFPA definition of what is the maximum distance a fire department connection can be from a fire hydrant?
The FDC and hydrant aren't something that connect directly together. In order to put any kind of water pressure into a sprinkler system, an engine HAS to pump it in. Therefore, as long as the fire apparatus has enough hose, or can GET the hose from other apparatus the hydrant could hypothetically be a block away. There may be problems with friction loss with any large distances though. In my local area, the fire department has a maximum of 150 feet from the FDC to the Fire hydrant.
What is the Fire Protection Class Code for?
Call your city hall or fire department and they will know what the protection class is for your city. If you are within 1000 feet of a fire hydrant and within 5 miles of the fire department you get the city class. If you are over 1000 feet from a hydrant but withing 5 miles of a fire department you are class 9. If you are over 5 miles from a fire department then you are a class 10.
What is fire protection class for 30559?
Call your city hall or fire department and they will know what the protection class is for your city. If you are within 1000 feet of a fire hydrant and within 5 miles of the fire department you get the city class. If you are over 1000 feet from a hydrant but withing 5 miles of a fire department you are class 9. If you are over 5 miles from a fire department then you are a class 10.
What is the Fire Protection Class for 73025?
Call your city hall or fire department and they will know what the protection class is for your city. If you are within 1000 feet of a fire hydrant and within 5 miles of the fire department you get the city class. If you are over 1000 feet from a hydrant but withing 5 miles of a fire department you are class 9. If you are over 5 miles from a fire department then you are a class 10.
What is the fire protection code for 35068?
Call your city hall or fire department and they will know what the protection class is for your city. If you are within 1000 feet of a fire hydrant and within 5 miles of the fire department you get the city class. If you are over 1000 feet from a hydrant but withing 5 miles of a fire department you are class 9. If you are over 5 miles from a fire department then you are a class 10.
What is the fire protection class for 51578?
Call your city hall or fire department and they will know what the protection class is for your city. If you are within 1000 feet of a fire hydrant and within 5 miles of the fire department you get the city class. If you are over 1000 feet from a hydrant but withing 5 miles of a fire department you are class 9. If you are over 5 miles from a fire department then you are a class 10.
How do you find state of Georgia fire department protection class?
Call your city hall or fire department and they will know what the protection class is for your city. If you are within 1000 feet of a fire hydrant and within 5 miles of the fire department you get the city class. If you are over 1000 feet from a hydrant but withing 5 miles of a fire department you are class 9. If you are over 5 miles from a fire department then you are a class 10.
What is a fire hydrant?
A hydrant is an attachment valve from a water main used by the fire department. One of the key features commonly found is an poppet shutoff that usually works to shut off the water if a car hits the hydrant.
Fire protection class code for Pandora OH?
Call your city hall or fire department and they will know what the protection class is for your city. If you are within 1000 feet of a fire hydrant and within 5 miles of the fire department you get the city class. If you are over 1000 feet from a hydrant but withing 5 miles of a fire department you are class 9. If you are over 5 miles from a fire department then you are a class 10.
What is the fire protection class code for woodlawon il?
Call your city hall or fire department and they will know what the protection class is for your city. If you are within 1000 feet of a fire hydrant and within 5 miles of the fire department you get the city class. If you are over 1000 feet from a hydrant but withing 5 miles of a fire department you are class 9. If you are over 5 miles from a fire department then you are a class 10.
What is the fire protection class for zip code 33614?
Call your city hall or fire department and they will know what the protection class is for your city. If you are within 1000 feet of a fire hydrant and within 5 miles of the fire department you get the city class. If you are over 1000 feet from a hydrant but withing 5 miles of a fire department you are class 9. If you are over 5 miles from a fire department then you are a class 10.
