AREAS OF OPERATIONS

Serving contractors and projects across the Midwest, Mid-Atlantic, and Northeast.

PenTex is positioned to support projects across a wide geographic area with the flexibility to deliver equipment where it is needed.
Our team works across multiple states to ensure fast access to pumping equipment and dependable support for changing project demands.
TDH Pump Calculator — PenTex Equipment
PenTex Equipment
TDH Pump Calculator  |  60°F Water Basis
⚙ System Parameters

All calculations based on 60°F clean water (SG=1.0) — standard pump curve basis.

GPM
ft (+lift / −flooded suction)
ft vertical rise to discharge
🔵 Suction Pipe
ID: — in
Hazen-Williams C — override if needed
feet of straight pipe
Suction Fittings — Equivalent Length Method
🟢 Discharge Pipe
ID: — in
Hazen-Williams C
feet of straight pipe
Discharge Fittings
💧 NPSH (Optional)

NPSHa = Atmospheric head − Suction lift − Suction friction − Vapor pressure. At 60°F, vapor pressure ≈ 0.59 ft. Atmospheric at sea level ≈ 33.9 ft.

ft above sea level (affects atmospheric pressure)
ft — enter to check cavitation margin
Total Dynamic Head
feet
Static Suction Lift
ft
Static Discharge Head
ft
Total Static Head
ft
Suction Friction Loss
ft
Discharge Friction Loss
ft
Total Friction Loss
ft
💨 Pipe Velocities & Inside Diameters
Suction — ft/s
Discharge — ft/s

tell us about your project.