Admin Table of Contents
- 1 How much clearance is required around a sprinkler head?
- 2 How far should a sprinkler head be from the wall?
- 3 How far apart should sprinklers be placed?
- 4 How far should a fire sprinkler be?
- 5 What’s the standard distance for a fire sprinkler head?
- 6 How big does an obstruction need to be for a sprinkler system?
How much clearance is required around a sprinkler head?
As a general rule, NFPA 13, Installation of Sprinkler Systems, requires 18 inches of clearance, but makes the following modifications: For standard pendent and upright spray (SSP/SSU) sprinklers, the 18- inch dimension is not intended to limit the height of shelving or storage along a wall as illustrated below.
What is the minimum clearance required below a sprinkler head?
The minimum vertical clearance between sprinklers and material below shall be 18 inches (45.7cm).
How far should a sprinkler head be from the wall?
All standard sprinkler heads—pendent, upright, and sidewall—have the same minimum sprinkler distance from walls: four inches. For sidewall heads, that’s the distance from an end wall (10.3. 4.3.
What is the 18 inch rule for sprinkler heads?
The purpose of the “18-inch rule” is to prevent storage or any other obstruction from interfering with the spray of water from a sprinkler head during a fire. It is intended to prevent a situation in which the obstruction is within 18-inches of the ceiling and might be between the sprinkler head and the fire.
How far apart should sprinklers be placed?
The distance between the sprinkler heads should not be more than 1 foot greater than the width of the planter. In other words, if the planter is 8 feet wide you would install half circle heads on both sides of the planter, not more than 9 feet apart from each other.
How much area does a fire sprinkler cover?
Each sprinkler protects up to 17 m2 in light hazards and 9m2 in ordinary hazards.
How far should a fire sprinkler be?
Minimum distance: With few exceptions, NFPA 13 requires at least six feet between all standard spray fire sprinklers.
Should you avoid storage within 45 cm 18 inches of a fire suppression sprinkler head?
Answer: Yes, if the storage is along a wall and is not directly below a sprinkler head. Although many nursing homes have been told that storage is not permitted within 18-inches of the ceiling in a sprinklered building, this is not totally correct.
What’s the standard distance for a fire sprinkler head?
In a nutshell, NFPA 25: Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems says that objects that can block a sprinkler’s spray must be at least 18 inches away from the deflector. (That’s the small metal part at the sprinkler’s forward edge.)
How much clearance do you need for a sprinkler system?
Please note that there are situations in which specific sprinkler designs for high-challenge fires, such as rubber tire storage or high rack storage, would require clearance greater than 18 inches. Additionally, please note that the answers given apply to clearance from stored materials only.
How big does an obstruction need to be for a sprinkler system?
The obstruction projects from the wall where the sprinkler is mounted (10.3.6.1.4). These isolated obstructions must be located at least 4 inches from sidewall heads (10.3.6.1.4.1). Installers may also place sidewall sprinklers on each side of an obstruction under four feet wide (10.3.6.1.5).
What are the distances for spray sprinklers in NFPA 13?
NFPA 13 provides the required distances from standard spray sidewall sprinklers in tables 10.3.6.1.3 and 10.3.6.1.4. The first table provides the required distances for sidewall sprinklers located four feet or more from an obstruction.