Sprinkler Trade: The Anatomy of Head Pressure

Weight and Pressure of Water

Stack Height: 12 in.

Number of Stacks: 1

Base Pressure = 0.433 lbs ÷ 1 in² = 0.433 psi

= 1 in³

Base Area

1 in²

Total Weight

0.43 lbs

Base Pressure

0.433 psi

Water Height (Total): 400 ft

Pipe Area (Diameter): 12 in

Gauge Elevation: 0 ft

Gauge Pressure = 400.0 ft × 0.433 psi/ft = 173.2 psi

Area = π × (12 in ÷ 2)² = 113.1 in²
Base Pressure = 0 lbs ÷ 113.1 in² = 173.2 psi

400'

0.00

psi

Total Weight

0 lbs

Base Pressure

0.0 psi

Gauge Pressure

0.00 psi