Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

• the most efficient way to navigate the Engineering ToolBox!

# Oil Pipes - Pressure Loss vs. Oil Flow

Oil pipe pressure drops in pounds per square inch (psi) per 100 ft pipe are indicated in the diagrams below. Oil viscosity is ranging 100 - 600 Saybolt Universal Seconds.

### NPS 1/2"

• Inside Diameter 0.622 inches

• 1 gal (US)/min =6.30888x10-5 m3/s = 0.227 m3/h = 0.06309 dm3(liter)/s = 2.228x10-3 ft3/s = 0.1337 ft3/min = 0.8327 Imperial gal (UK)/min
• 1 psi (lb/in2) = 6,894.8 Pa (N/m2) = 6.895x10-3 N/mm2 = 6.895x10-2 bar = 27.71 in H2O at 62oF (16.7oC) = 703.1 mm H2O at 62oF (16.7oC) = 2.0416 in mercury at 62oF (16.7oC) = 51.8 mm mercury at 62oF (16.7oC) = 703.6 kg/m2 = 0.06895 atm = 2.307 Ft. H2O = 16 ounces
• 1 ft (foot) = 0.3048 m
.

### NPS 3/4"

• Inside Diameter 0.824 inches

### NPS 1"

• Inside Diameter 1.05 inches
.

### NPS 1 1/2"

• Inside Diameter 1.61 inches

### NPS 2"

• Inside Diameter 2.067 inches
.

### NPS 4"

• Inside Diameter 4.026 inches

### NPS 6"

• Inside Diameter 6.065 inches
.

### NPS 8"

• Inside Diameter 8.03 inches

## Related Topics

### • Fluid Flow and Pressure Loss in Pipes and Tubes

Fluid flow and pressure loss in pipe lines. Water and sewer systems. Steel pipes, pvc pipes, copper tubes and more.

## Related Documents

### Engine & Gear Oil - Recommended Viscosity vs. Outside Temperature

Oil viscosity vs. temperature.

### ISO Grade Oils - Viscosities and Densities

Viscosities and densities of ISO - and equivalent SAE grade oils.

### Liquids - Kinematic Viscosities

Kinematic viscosities of some common liquids like motor oil, diesel fuel, peanut oil and many more.

### Oil Fuels - Viscosities vs. Temperature

Viscosities of fuel oils vs. temperature.

### Oil Pipes - Head Loss

Head or pressure loss due to friction in oil pipes - various viscosity and laminar flow.

### Oil Pipes - Recommended Flow Velocities

Oil pipes flow velocities should be kept within certain limits.

### Oils - Melting points

Common oils from animals or plants and their melting points.

### SAE Multigrade Oils - Viscosities and Densities

Viscosities and densities of SAE Grade oils.

### Viscosity - Absolute (Dynamic) vs. Kinematic

Vicosity is a fluid's resistance to flow and can be valued as dynamic (absolute) or kinematic.

### Viscosity - Converting Chart

Convert between viscosity units like Centiposes, milliPascal, CentiStokes and SSU.

## Search Engineering ToolBox

• the most efficient way to navigate the Engineering ToolBox!

## SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!