Grants Hydrotest Calculator

Work in progress
🕐 HT Clock
Pipe Volume Calculator 01

Add one or more pipe sections — ID in inches, Length in feet

Please enter valid ID and Length for all pipe sections.
Pressure Fill Calculator 02

Water required to raise pressure — field constant 225,000

Please fill in all fields with valid numbers.
Stroke Count & Incremental Volume 03
Calculated Incremental Volume = what the pipeline should take per reading (Vol ÷ 225,000 × 10 PSI).
Actual Incremental Volume = what was actually pumped per reading (Total Vol Pumped ÷ Total ΔP × 10 PSI).
Double Deviation = Actual > 2× Calculated — investigate for leak, trapped air, or pipe expansion.
Test Parameters
Field Results (Actual Data)
—
Please fill in all required fields with valid numbers.
Barrel ↔ Gallon Converter 04

1 barrel = 42 gallons

Pressure Drop from Bleed-Off 05

Estimate PSI drop when bleeding a small volume from a pressurized line

Field Formulas Cheat Sheet 06
Pipe Volume
π × (ID/2)² × Length
÷ 231 = gallons
ID and Length both in inches
Gallons per PSI
Volume (gal) ÷ 225,000
Field constant for water compressibility at test pressures
Calculated Incremental Vol
(Vol ÷ 225,000) × Increment
Expected gal per PSI reading — your baseline
Actual Incremental Vol
(Total Vol Pumped ÷ Total ΔP)
× Increment Size
From real stroke data — compare to calculated
Total Volume Pumped
Total Strokes × Gal/Stroke
Convert pump strokes to gallons using pump capacity rating
Barrel to Gallon
Barrels × 42 = Gallons
1 BBL = 42 US gallons
Nitrogen Bottle Estimator 07

Enter OD and wall thickness — bottles are 300 cf

Water Fill — Pig Tracker 06

Line Setup — enter once at the start of the fill

Pump Rate — optional, used for initial ETA before observed data

Meter Reading — enter raw meter number each time you check