Hydraulic Calculation

# Node 1 Elev 1 (ft) K Factor Flow Pipe Type Nominal ID Fit. Eq. Len (ft) L (ft) C Factor Total (Pt) Notes
F (ft) Elev (Pe)
Node 2 Elev 2 (ft) Tot. Flow Actual ID PF (psi/ft)
T (ft) Frict (Pf)

Equivalent K-Factor

# Node 1 Elev 1 (ft) K Factor Flow Pipe Type Nominal ID Fit. Eq. Len (ft) L (ft) C Factor Total (Pt) Eq. K-Factor Downstream
F (ft) Elev (Pe)
Node 2 Elev 2 (ft) Tot. Flow Actual ID PF (psi/ft)
T (ft) Frict (Pf)

Equivalent Length of Fittings (ft)

# 1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 3 1/2" 4" 5" 6" 8" 10" 12"

CFactor Multiplier

Internal Diameter Multiplier

Pipe Type 1/2" 3/4" 1" 1 1/4" 1 1/2" 2" 2 1/2" 3" 3 1/2" 4" 5" 6" 8" 10" 12"

Water Supply & System Demand


Water Supply Data
Static Pressure (psi)
Flow (gpm)
Residual Pressure (psi)
Outside Hose Stream (gpm)
System Demand
Sprinkler System- Flow (gpm) 0
Sprinkler & Hose System- Flow (gpm) 0
Pressure (psi) 0
Available Pressure at the system flow demand (psi) 0
Safety Margin
psi 0
% 0

Pressure Loss in Pipes

Flow Rate (gpm) Pipe Type Pipe Size (in) ID (in) C Factor Length (ft) Loss (psi/ft) Total Loss (psi)

Optimal K-Factor (Standard Spray Sprinklers):

Flow Rate (gpm) Optimal K

Equivalent K-Factor:

Flow Rate (gpm) Pressure (psi) Equiv K

Equivalent Length:

Initial Eq. Length: Pipe Type Pipe Size (in) C Factor Final Eq. Length (ft)