Table of Contents
- 1 What NFPA Standard contains the requirements for pump design?
- 2 What must be located on the discharge side of the pump in a fire main system?
- 3 Is code for fire pumps?
- 4 What is the NFPA Standard for pump testing?
- 5 When should a fire be ventilated?
- 6 Which BIS is applicable for installation and maintenance of fire fighting pumps?
- 7 How often does a fire pump need to be tested?
- 8 What should I consider when installing a fire pump?
- 9 What size suction pipe do I need for my Fire Pump?
What NFPA Standard contains the requirements for pump design?
NFPA 20 protects life and property by providing requirements for the selection and installation of pumps to ensure that systems will work as intended to deliver adequate and reliable water supplies in a fire emergency.
What must be located on the discharge side of the pump in a fire main system?
(b) Each fire pump in a fire main system must have a pressure gauge on its discharge side. One of the required pumps must be kept available for use on the fire system at all times.
Is code for fire pumps?
2 REFERENCES
| IS No. | Title |
|---|---|
| 5120 : 1977 | Technical requirements for rotodynamic special purpose pumps (first revision) |
| 6070 : 1983 | Code of practice for selection, operation and maintenance of trailer fire pumps, portable pumps, water tenders and motor fire engines (first revision) |
What are the three test points that a new fire pump must meet?
As per 2017 Edition, section 8.3. 3 of this standard, the annual flow testing of fire pumps should be performed as a minimum at three points across pump curve; no flow (churn), 100\% of the pump rated capacity and 150\% of the pump rated capacity by controlling discharged water through approved discharge devices.
How do you calculate fire pump discharge pressure?
Net Pump Discharge Pressure (NPDP) Is the end result of hoseline calculations. It is equal to Nozzle Pressure + Friction Loss in the hose + Friction loss in Appliances + Pressure due to Elevation Changes. Nozzle Pressure (NP) The amount of pressure required at the nozzle to produce an effective fire stream.
What is the NFPA Standard for pump testing?
The current NFPA 1901, Standard for Automotive Fire Apparatus–1996, 5-3.2, requires a tank with 500 gallons or more of water to pump flow at a minimum rate of 500 gpm. This flow rate must be sustained for a minimum of 80 percent of the tank`s capacity. Alternative pump testing from a hydrant is allowed.
When should a fire be ventilated?
Fire ventilation should be implemented as soon as possible during the fire and rescue operation. If the fire is fully developed in one or more rooms, it is very often better to focus on fire ventilation of the adjacent rooms where the fire has not yet spread.
Which BIS is applicable for installation and maintenance of fire fighting pumps?
The selection, installation and maintenance of fire extinguishers are covered in IS 2190: 1979 ‘Code of practice for selection, installation and maintenance of portable first-aid fire extinguishers (second revision)’ This standard covers requirements in respect of installation and maintenance of internal fire hydrants …
What is the required pressure for fire hydrant?
5.25 kgf/cm2
Hydrant mains should be tested with the pump delivering at its maximum pressure with all the hydrants outlet closed and thereafter, with at least three adjacent hydrants opened to see that the hydrant yield the minimum output of 1 125 litres per minute at a minimum pressure of 5.25 kgf/cm2 or higher, if needed.
How often must a fire pump be no flow tested?
Section 8.3. 1.2* requires a no-flow test to be conducted weekly for electric motor–driven fire pumps: Serving fire protection systems in buildings that are beyond the pumping capacity of the fire department.
How often does a fire pump need to be tested?
According to NFPA 25, fire pumps must be tested on both a monthly and annual basis to ensure that they will perform as designed. These two different tests are referred to as a monthly “churn” test and an annual flow test.
What should I consider when installing a fire pump?
In addition to addressing the more obvious components that comprise a fire pump installation-such as the fire pump, driver, controller, and pump room-careful attention also needs to be given to the piping leading to, from, and around the pump and the equipment associated with that piping.
What size suction pipe do I need for my Fire Pump?
NFPA 22 provides specific guidance with regard to suction piping connecting a water tank with the fire pump. For instance, if the suction tank exceeds 100,000 gal, the size of the suction pipe must be at least 10 in. in diameter (nominal dimensions). The smaller the pipe, the faster the water flow, and therefore more turbulent flow will occur.
What is the purpose of a fire pump discharge check valve?
The discharge check valve traps the higher pressure in the fire protection system after the fire pump operation stops. The check valve also prevents other sources of water flow into the system, such as through a fire department connection, from flowing back into the fire pump.
Does NFPA 13 apply to sprinkler system risers?
Such pipe, valves, and fittings are considered part of the supply piping for the fire protection system being served by the fire pump. In the case of a sprinkler system riser, the requirements of NFPA 13 would apply from the point of the pump discharge control valve.