Sprinkler flow must meet what requirement?

Sprinkler flow must meet what requirement?

• A. Minimum pressure
• B. Listing at specified spacing
• C. Maximum spacing
• D. Adjustable spacing

Answer: (B)

The flow requirement is tied to the sprinkler’s listing for the spacing used. Sprinklers are tested and listed for specific spacing patterns, and the discharge rate and coverage area are established for those spacings. In a low-rise residential design, you must ensure the water supply delivers at least the listed discharge at the operating pressure for each sprinkler given the spacing you’ve used. Using the spacing that the listing covers guarantees the sprinkler will perform as tested and approved. If you tried to place sprinklers at unlisted spacings, you’d be venturing outside the listing, which means the guaranteed performance isn’t supported. That’s why meeting the listing for the spacing is the correct requirement.

The flow requirement is tied to the sprinkler’s listing for the spacing used. Sprinklers are tested and listed for specific spacing patterns, and the discharge rate and coverage area are established for those spacings. In a low-rise residential design, you must ensure the water supply delivers at least the listed discharge at the operating pressure for each sprinkler given the spacing you’ve used. Using the spacing that the listing covers guarantees the sprinkler will perform as tested and approved. If you tried to place sprinklers at unlisted spacings, you’d be venturing outside the listing, which means the guaranteed performance isn’t supported. That’s why meeting the listing for the spacing is the correct requirement.