What is an extended coverage sprinkler?
Extended Coverage Sprinklers are intended for the. protection of areas larger than those specified in standard installation rules and for specific light, ordinary, or extra hazard occupancies. Extended coverage sprinklers are available in both standard response (EC) and quick response (QR-EC).
What is the maximum area of coverage for an extended coverage sidewall sprinkler?
1. In any case, the maximum area of coverage of a sprinkler shall not exceed 400 ft2 (37 m2). The maximum distance permitted between sprinklers shall be based on the centerline distance between sprinklers on the branch line along the wall.
What is the sprinkler coverage?
When properly installed, most sprinkler heads will have an 8′ coverage radius. This is one of many determining factors in how the sprinkler heads must be spaced.
How is fire sprinkler coverage area calculated?
In short, to determine the minimum flow from a sprinkler in multiplying the area by the required density, is the actual area of the room used (13′-0″ x 13′-0″ = 169 sqft) or is it computed the same as the maximum area of coverage for a sprinkler by doubling the furthest distance from adjacent walls [(7′-0″ x 2) x (7′-0 …
How do you extend a fire sprinkler head?
How to Replace Fire Sprinkler Heads
- Locate the fire sprinkler water valve.
- Unscrew the cage or cap covering the sprinkler head, if applicable.
- Apply anaerobic pipe thread sealant to the threads of the new nipple and attach the sprinkler head, being careful not to over tighten it.
What is the distance between two sprinklers?
The minimum spacing between two sprinklers is 6 feet. The maximum distance a sprinkler can be installed from a wall is half the maximum spacing between two sprinklers. The minimum distance a sprinkler can be installed from a wall is 4 inches.
What is the coverage of a sidewall sprinkler?
MAXIMUM COVERAGE
Standard spray coverage is up to: Light Hazard = 196 square feet(18,2 sq. m); Ordinary Hazard = 100 square feet(9,3 sq. m)per NFPA 13.
What is the maximum spacing for an extended coverage sidewall sprinkler located in a light hazard occupancy?
1 of NFPA 13, which states that the distance from the sprinkler to the wall can be no more than one-half the allowable distance between sprinklers. The max distance between standard spray sprinklers in light hazard settings is 15 ft. (4.6 m) (with exceptions for light-hazard, combustible concealed spaces).
What is head to head sprinkler coverage?
For example, let’s say you have a head that sprays around 20 feet. Water should make it all the way to the next head. In order for them to reach, water is sprayed in an arch. This allows the waters spray patterns to overlap and ensure the entire area receives coverage. This is called “head to head” coverage.
How many sprinkler heads can I put on one zone?
If your home’s water capacity was 10 GPM, you could place 3 heads per zone. Consult the Performance Charts on or inside the box your sprinkler head came in for your head’s exact performance data, or locate the performance data in the Support area of this website.
How many sprinklers can you run at once?
For example, you generally have a flow rate of 10 gpm from a ¾-inch spigot where you connect your hose. With your 10 gpm flow rate at your spigot, you could run two sprinklers at 5 gpm each. The best set-up is to run two hoses from the spigot–each to one sprinkler.
How many sprinkler heads should be on a zone?
If your home’s water capacity was 10 GPM, you could place 3 heads per zone.
How many sprinklers do I need per room?
Sprinkler Head Spacing
| OCCUPANCY HAZARD | SQUARE FOOT PER HEAD | MAXIMUM SPACING BETWEEN SPRINKLERS |
|---|---|---|
| Light Hazard (Office, Educational, Religious, Institutional, Hospitals, Restaurants, Clubs, Theaters, etc.) | 130-200 SF per head (based on obstructions and flow calcs) | 15 ft |
When should I use sprinkler sidewall?
Sidewall fire sprinklers, as the name suggests, protrude from the side of a wall, as opposed to hanging down from the ceiling. Sidewall fire sprinklers are ideal to use in situations where ceiling access is limited or where freezing is a potential concern.
How far can a sidewall sprinkler be off a wall?
Sidewall sprinkler deflectors shall be located not more than 6 in. (150 mm) or less than 4 in. (100 mm) from walls on which they are mounted.
What is the maximum distance between sprinklers?
15 ft.
5.2. 1 of NFPA 13, which states that the distance from the sprinkler to the wall can be no more than one-half the allowable distance between sprinklers. The max distance between standard spray sprinklers in light hazard settings is 15 ft. (4.6 m) (with exceptions for light-hazard, combustible concealed spaces).
What is the minimum distance between sprinkler heads?
Minimum Distance Between Sprinklers: typically 6′-0″. Distance from Ceiling: minimum 1″, maximum 12″ for unobstructed construction. The minimum 1″ is typical; however, concealed, recessed, and flush sprinklers may be mounted less than 1″ from the ceiling and shall be installed based on their listing.
How far can sprinkler heads spray?
15ft.
Spray heads: Best used for small to medium sized lawns and/or in systems that will be operating with pressure between 20 – 30 PSI. Because of the lower PSI the distance of the spray rarely exceeds 15ft. Meaning that spray heads should never be placed further than 15 ft.
What is the maximum pressure for a fire sprinkler system?
The maximum pressure at any point in the system at any time shall not exceed 400 350 psi (28 bar) .
How long should a sprinkler run?
How Long Should I Water at a Time? A watering session should be long enough to soak the area sufficiently so all the roots receive a beneficial drink. Sprinklers should be set to run for about 30 to 35 minutes at a time twice a week. Your goal is at least 1″ of water a week for your lawn.
How many sprinklers can be on a zone?
How do I calculate how many sprinklers I need for a zone?
Calculating Zones
Each zone should include plants with the same watering needs, or an area of the lawn. Then, add up the necessary flow rate in GPM of all the sprinkler heads, divided by the GPM of your water supply. The resulting number will equal how many zones you need.
What are the 4 types of sprinkler systems?
Types of sprinkler systems permissible by NFPA 13, Standard for the Installation of Sprinkler Systems, are wet, dry, preaction, and deluge.
What is the minimum distance for a sprinkler from the wall?
4 inches
The minimum spacing between two sprinklers is 6 feet. The maximum distance a sprinkler can be installed from a wall is half the maximum spacing between two sprinklers. The minimum distance a sprinkler can be installed from a wall is 4 inches.