Table of Contents
What pumps are used in fire fighting system?
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.
How do you size a fire pump?
Fire pumps are typically sized by pressure range, therefore a 400 gpm pump with a revolutions per minute speed of 3,550 can deliver a rated pressure from 40 to 56 psi without increasing the size of the pump.
What is the life expectancy of a fire pump?
about 20 years
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 much is a new fire pump?
Fire pumps “and their associated equipment” can “cost from $20,000 to more than $1,000,000 when suction tanks are required.” And since they are complex pieces of machinery that are vital to the operation of these systems, they have varied and highly detailed inspection requirements.
Is code for fire fighting 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) |
Are jockey pumps required for fire pumps?
A jockey pump is not required on systems utilizing a fire pump, however, due to their relative simplicity, jockey pumps are the most common method used to maintain system pressure. Since jockey pumps are not required to be listed, any pump capable of producing necessary pressure is acceptable.
When should fire pump be replaced?
between 7 and 15 years
Under ideal conditions, the life expectancy of this type of fire pump design is typically between 7 and 15 years.
How much does a diesel fire pump cost?
On average, the annual cost for fire pump churn testing is $1,200 for electric and $7,800 for diesel pumps. Items such as the packing and gland halves require replacement if the fire pump isn’t run for a long time. Replacing fire pump packing and gland halves can cost between $2,000-$3,000.
How do you test a fire pump?
The monthly churn test requires electric powered pumps to be tested as follows:
- Run pump for a minimum of 10 minutes.
- Record the system suction & discharge pressure gauge readings.
- Check the pump packing glands for slight discharge.
- Adjust glands nuts; if neccessary.
- Check for unusual noise or vibration.
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.
Is Standard for fire pump Room?
4 FIRE PUMPS AND PUMP HOUSE 4.1 The pump house should be located preferably outside the building with a minimum clearance of 6 m from adjoining buildings. The pump house should have adequate natural ventilation with windows, fitted with expanded metal for protection.