One sprinkler head discharges approximately how many GPM at 30 psi?

One sprinkler head discharges approximately how many GPM at 30 psi?

• A. 20 GPM (@ 30 psi)
• B. 30 GPM (@ 30 psi)
• C. 50 GPM (@ 30 psi)
• D. 15 GPM (@ 30 psi)

Answer: (B)

When estimating how much water a sprinkler head puts out, we use a practical rule of thumb: at 30 psi, many standard sprinkler heads discharge about 30 gallons per minute. This per-head value helps simplify quick calculations for total system flow, especially when you’re counting how many heads might be simultaneously discharging and planning pump capacity or hydraulics. Keep in mind the exact flow depends on the head design and orifice, so you’d use the manufacturer’s performance curve for precise numbers.

When estimating how much water a sprinkler head puts out, we use a practical rule of thumb: at 30 psi, many standard sprinkler heads discharge about 30 gallons per minute. This per-head value helps simplify quick calculations for total system flow, especially when you’re counting how many heads might be simultaneously discharging and planning pump capacity or hydraulics. Keep in mind the exact flow depends on the head design and orifice, so you’d use the manufacturer’s performance curve for precise numbers.