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

Piping Systems

Dimensions of pipes and tubes, materials and capacities, pressure drop calculations and charts, insulation and heat loss diagrams.

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Codes and Standards

Piping codes and standards - ASME, ANSI, ASTM, AGA, API, AWWA, BS, ISO, DIN and more..

Corrosion

Corrosion in piping systems caused by thermodynamic and electrochemical processes - corrosion problems and methods of protection and prevention.

Design Strategies

Piping systems design strategies - documentation, P&ID, flow diagrams - capacities and limits.

Dimensions

Sizes and dimensions of pipes and tubes, and their fittings - inside and outside diameter, weight and more.

Fluid Flow and Pressure Loss

Pipe lines - fluid flow and pressure loss - water, sewer, steel pipes, pvc pipes, copper tubes and more.

Heat Loss and Insulation

Heat loss from pipes, tubes and tanks - with and without insulation - foam, fiberglass, rockwool and more.

Pressure Ratings

Pressure ratings of pipes and tubes and their fittings - carbon steel , stainless steel, plastic, copper and more.

Temperature Expansion

Thermal expansion of pipes and tubes - stainless steel, carbon steel, copper, plastics and more.

Valve Standards

International standards for valves in piping systems.

American vs. British Piping Standards

US American (ASTM) vs. British (BSi) piping standards - specifications, grades and material descriptions.

ANSI Schedule 40 Steel Pipes - Dimensions

Internal and external diameters, areas, weights, volumes and number of threads for ANSI schedule 40 steel pipes.

ANSI Schedule 80 Steel Pipes - Dimensions

Internal and external diameters, areas, weights, volumes and number of threads for schedule 80 steel pipes.

ASME/ANSI B36.10/19 - Carbon, Alloy and Stainless Steel Pipes - Dimensions

Pipe sizes, inside and outside diameters, wall thickness, schedules, moment of inertia, transverse area, weight of pipe filled with water - U.S. Customary Units.

ASME/ANSI B36.10/19 - Carbon, Alloy and Stainless Steel Pipes - Dimensions - Metric Units

Pipe sizes, inside and outside diameters, wall thickness, schedules, weight and weight of pipe filled with water - Metric Units.

ASTM Cross Reference Material Specifications

Cross reference for fittings, flanges, unions and cast and foged valves.

Ball Valves - Flow Coefficients Cv

Flow coefficients - Cv - for typical ball valves - reduced and full bore.

Boiling Fluids - Max Suction Flow Velocity

Recommended max suction flow velocity when pumping boiling fluids.

Boiling Liquids - Max Pumping Flow Velocity

Recommended max flow velocity on the delivery (pressure) side when pumping boiling liquids.

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Bronze Flanges - ASME/ANSI 150 lb

Flange diameters, thickness, bolt circles, numbers and diameters of bolts for ASME/ANSI B16.15 - Cast Bronze Threaded Fittings - 150 lb Bronze flanges with plain faces.

Bronze Flanges - ASME/ANSI 300 lb

Flange diameters, thickness, bolt circles, numbers and diameter of bolts for ASME/ANSI B16.15 - Cast Bronze Threaded Fittings - 300 lb Bronze - Flanges with plain faces.

Butterfly Valves - Flow Coefficients Cv

Typical flow coefficients - Cv - for butterfly valves.

Carbon and Stainless Steel Flanges - ASME/ANSI Class 150

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 150 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.

Carbon and Stainless Steel Flanges - ASME/ANSI Class 1500

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 1500 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.

Carbon and Stainless Steel Flanges - ASME/ANSI Class 2500

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 2500 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.

Carbon and Stainless Steel Flanges - ASME/ANSI Class 300

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 300 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.

Carbon and Stainless Steel Flanges - ASME/ANSI Class 400

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 400 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.

Carbon and Stainless Steel Flanges - ASME/ANSI Class 600

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 600 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.

Carbon and Stainless Steel Flanges - ASME/ANSI Class 900

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 900 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.

Carbon Steel Flanges - Pressure and Temperature Ratings

Maximum ratings for flanges conforming to ISO Standard 2229 dimensions and material specification AST-A-105.

Carbon Steel Pipes - Comparing American & European Standards

Comparing standards of carbon steel pipes from USA, Germany, UK and Sweden.

Cast Iron

The four basic types of cast iron - white iron, gray iron, ductile iron and malleable iron.

Cast Iron Flanges - ASME/ANSI Class 125

ASME/ANSI B16.1 Cast Iron Pipe Flanges and Flanged Fittings - Class 125 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.

Cast Iron Flanges - ASME/ANSI Class 25

ASME/ANSI B16.1 - 1998 - Cast Iron Pipe Flanges and Flanged Fittings - Class 25 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.

Cast Iron Flanges - ASME/ANSI Class 250

ASME/ANSI B16.1 Cast Iron Pipe Flanges and Flanged Fittings - Class 250 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.

Content in Horizontal - or Sloped - Cylindrical Tanks or Pipes

Volume of partly filled horizontal or sloped cylindrical tanks or pipes - online calculator.

Cooling Water Pipe Lines

Sizing cooling water pipe lines - maximum allowable flow, velocity and pressure drops.

Copper Tubes - Heat Loss

Heat loss from uninsulated copper tubes vs. temperature differences between tube and air.

Copper Tubes - Insulated Heat Loss

Heat loss to surrounding air from insulated copper tubes.

Diaphragm Valves - Diaphragm Materials

Common diaphragm materials and their main properties when used in diaphragm valves.

Download ANSI, American National Standards Institute, Standards

ANSI is a private, not-for-profit, membership organization that acts not as a standards developer, but as a standards coordinating and approval body.

EN 10255 - Non-alloy Steel Tubes for Welding and Threading - Dimensions

Dimensions and weights of steel tubes according BS EN 10255.

Firefighting Water - Required Volume Flow

Required water for firefighting.

Flow Coefficient Cv vs. Flow Factor Kv

Comparing flow coefficients Cv to flow factors Kv.

Gasket Characteristics

Gaskets are used to make a fluid or gas resistant seal between two surfaces.

Horizontal Pipes Hanger Supports - Spacing and Rod Size

Recommended maximum support span between hangers - and rod sizes for straight horizontal pipes.

HVAC Diagram - Online Drawing Tool

Draw HVAC diagrams online with this Google Drive drawing tool.

Ice Loaded Pipelines

Ice coat weigth on horizontal pipe lines.

Incompressible Flow Calculator

Pipe rating for single phase incompressible flow.

Light Oil Pumping - Flow Velocities

Recommended max. flow velocities on the delivery side when pumping light oils.

Light Oil Suction - Flow Velocities

Recommended max. suction flow velocities when pumping light oils.

NDT - Non Destructive Testing

Non-destructive construction testing.

NPS - 'Nominal Pipe Size' and DN - 'Diametre Nominal'

The size of pipes, fittings, flanges and valves are often given in inches as NPS - Nominal Pipe Size, or in metric units as DN - 'Diametre Nominal'.

P&ID Diagram - Online Drawing Tool

Draw P&ID diagrams online in the browser with Google Docs.

Pipes - Fractional Equivalents

Fractional vs. decimal inches.

Pipes and Tubes - Temperature Expansion

Pipes expands when heated and contracts when cooled and the expansion can be expressed with the expansion equation.

Pipes' Relative Capacity

Relative capacity between larger and smaller pipes.

Piping Materials - Temperature Expansion Coefficients

Temperature expansion coefficients for materials used in pipes and tubes like aluminum, carbon steel, cast iron, PVC, HDPE and more.

Pneumatic Powder and Solid Transport Systems

Pneumatic transport systems used to move powder and other solid products.

Pneumatic Transport and Conveying - Carrying Velocities

Recommended air velocity for pneumatic transport of products like cement, coal, flour and more.

Pneumatic Transports - Solids and Particle Size

Particle sizes for common products like coal, sand, ash and more.

Pneumatics - Transport of Solids and Separator Types

Separators used in pneumatic solids transport systems and their minimum particle size.

Propylene Glycol based Heat-Transfer Fluids

Freezing points of propylene glycol based heat-transfer fluids suitable for the food processing industry.

Reynolds Number

Introduction and definition of the dimensionless Reynolds Number - online calculators.

Slurry Transport - Minimum Flow Velocities

Flow velocities in slurry transport systems to avoid settling of solids.

Stainless Steel Pipes - American vs. European Standards

American - US - vs. European - German, British (UK) and Swedish - stainless steel pipe standards.

Stainless Steel Pipes - Dimensions and Weights

Dimensions, wall thickness and weights of stainless steel pipes according to ASME B36.19 Stainless Steel Pipes.

Steel Pipes - Heat Loss Diagram

Heat loss from steel pipes and tubes - dimensions 1/2 to 12 inches.

Steel Pipes - Temperature Expansion

Calculate temperature expansion with carbon steel pipes.

Steel Pipes Schedule 40 - Pressure Loss

Water flow and pressure loss in schedule 40 steel pipes - Imperial and SI units - gallons per minute, liters per second and cubic meters per hour.

Straight Through Diaphragm Valves - Flow Coefficients

Flow coefficients - Cv - and flow factors - Kv - for straight through diaphragm valves.

Thermoplastic Pipes - Supporting Distances vs. Temperature

Maximum space between supports for PVC, CPVC, PVDF and PP pipes vs. temperature.

Threaded & Socket Welded Steel Fittings - Pressure Classes vs. Schedules

Pressure classes, schedules and weights of pipes for threaded & socket welded fittings.

Valve Type Classification

Categories of valves.

Valves - Specific Services

In case of a specific service - the choose of a valve may be simplified by following an established practice.

Valves - Typical Operating Temperatures

Operating temperatures for typical categories of valves - ball valves, butterfly valves and more.

Valves Selection Guide

Applications guide for selecting valves.

Valves Types - Operating Size Range

Types of valves and their typical operating sizes.

Viscous Liquids - Max. Delivery Flow Velocities

Recommended max. flow velocities on delivery sides of pumps in viscous systems.

Viscous Liquids - Max. Suction Flow Velocities

Recommended max. pump suction flow velocity for viscous fluids.

Volume in Horizontal Pipes or Cylindrical Tanks

Liquid content in partly filled horizontal pipes or tanks.

Water - Max. Suction Flow Velocities vs. Pipe Size

Recommended max. water flow velocities on suction sides of pumps.

Water Flow - Max. Delivery Velocities vs. Pipe Size

Recommended maximum flow velocities in water systems on the delivery side of the pump.

Weir Diaphragm Valves - Flow Coefficients and Flow Factors

Typical flow coefficients - Cv - and flow factors - Kv - for weir diaphragm valves.

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