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

Cast Iron Flanges - Stud Reference Chart

The number, diameter and length of studs for cast iron flanges class 125 and 250

ABS Drainage Pipe Properties

Nominal pipe size, outside diameter, thickness and weight

ASTM B 280 Copper Tube - ACR

Standard Specification for Seamless Copper Tube for Air Conditioning and Refrigeration Field Service - ACR

American Standard Straight Pipe

Pipe diameter - threads and tap drill

BWG - Birmingham Wire Gauge

The wall thickness of pipes - Gauge and decimal parts of an inch

Bolt Stretching

Bolt stretch according Hooke's Law

Briggs Standard Pipe Taps - Drill Sizes

Drill sizes for Briggs Standard Pipe taps

CPVC Pipes - Support Spacing

Support spacing for CPVC pipes

Calculating Pipes Weight

A weight calculating formula for steel pipes

Capacities of Threaded Steel Rods

Capacities of threaded steel rods used as hangers in piping systems

Carbon and Stainless Steel Welding Neck Flange Bores

Flange bores of welding neck flanges according ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings

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

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

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

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

Circles within Rectangles

The maximum number of circles packed in a rectangle


Cleanouts provides access to the sewer for rodding

Commercial Pipe - Properties

Properties of commercial pipe - metric data

Content of Horizontal or Sloped Cylindrical Tanks or Pipes

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

Copper Tubes - ASTM B88

Copper Water and Gas Tube according ASTM B 88 - imperial units

Copper Tubes - ASTM B88M

Copper Water and Gas Tube according ASTM B 88M - metric units

Copper Tubes DWV - Drain, Waste and Vent

Dimensions of copper tube ASTM 306 DWV - Drain Waste and Vent

Copper Tubes Type K - Dimensions and Physical Characteristics

Physical characteristics of copper tubes

Copper Tubes to BS (British Standard) 2871 - Dimensions and Working Pressures

Metric Sizes of copper tubes to BS (British Standard) 2871:1972

Difference between Pipes and Tubes

Pipes and tubes are not exactly the same

Dimensions Butt-Welding Fittings

Butt-Welding Fittings - B16.9 - dimensions

Drain Pipe and Vent Stacks

Drain pipes and stack vent sizing

Epoxy Pipes - Support Spacing

Support spacing for reinforced Epoxy fiberglass pipes

Equation of Continuity

The Equation of Continuity is a statement of mass conservation

Fiberglass Pipes - Temperature Limits

Temperature range for fiberglass Epoxy, Furan, Phenolic, Polyester and Vinyl Ester pipes

Flanges - API vs. ASME/ANSI

Comparing API and ASME/ANSI flanges dimensions and pressure ratings

Flanges and Bolt Dimensions Class 150 to 2500 - ASME/ANSI B16.5

Diameters and bolt circles for standard ASME B16.5 flanges - 1/4 to 24 inches - Class 150 to 2500

Forged Steel Flanges - Stud Reference Charts

The number, diameter and length of studs for ANSI forged steel flanges Class 150 to Class 1500

Gaskets Temperature Rating

Temperature ratings gaskets

Hanger Rods and Load Capacity

Load ratings for threaded hanger rods

Hangers - Support Spacing and Rod Size for Horizontal Pipes

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

Hot Bending - Copper and Copper Alloy Pipe

Temperature range for bending copper pipe and tube

Hot Bending - Nickel and Nickel Alloy Pipe

Temperature range for bending nickel and nickel alloy pipe and tube

Identification Tests for Stainless Steels

Magnetic, spark, hardness and acid identification tests of austenitic, martensitic and ferritic stainless steels

Inches and Decimal Equivalents

Decimal equivalents of eights, sixteenths, thirty-seconds and sixty-fourths of an inch

Main Vents

Vents in draining systems protects traps against pressure differences that could cause them to siphon or blow out

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'

NPT- National Pipe Thread Taper- ANSI B1.20.1

NPT pipe threads - dimensions according ANSI/ASME B1.20.1

Nominal Wall Thickness Pipe

Nominal wall thickness seamless and welded carbon and alloy steel pipes

PE Pipes and Pressure Grades

Polyethylene - PE - pipes and pressure classes

PE Pipes and Weights

Weight of polyethylene pipes - metric units

PE Pipes with Dimensions

Polyethylene pipe dimensions according European Standards

PE Water Supply Pipe Properties

Nominal pipe size, outside diameter, wall thickness, weight and working pressure

PP Pipes - Support Spacing

Hanger spacing for PolyPropylene pipes

PVC Pipes - Support Spacing

Support spacing for PVC pipes

PVC Sewer & Drain Pipe

Dimensions of PVC sewer & drain pipes - ASTM D2729

PVDF Pipes - Support Spacing

Support spacing for PVDF pipes

Pipe Equations

Calculate cross-sectional area, weight of empty pipes, weight of pipes filled with water, inside and outside surface area

Pipe Flanges and Gasket Dimensions

Gasket dimensions for pipe flanges and flange fittings ASME B16.5 Pipe Flanges and Flange Fittings

Pipe Formulas

Pipe and Tube Equations - moment of inertia, section modulus, traverse metal area, external pipe surface and traverse internal area - imperial units

Pipe Lengths

Pipe is supplied and refered to as single random, double random and cut lengths

Pipe Taps - Drill Sizes

Drill sizes for British Whitworth Standard and Briggs American Standard pipe taps

Pipe Threads for Tubes and Fittings where Pressuretight joints are made on the Threads - BS 21

BSPT - British Standard Pipe Taper threads & BSP or BSPF - British Standard Pipe Parallel (Straight) threads

Pipe Threads where Pressuretight Joints are made on the Threads - ISO 7-1

ISO 7-1:1994 Pipe threads where pressure-tight joints are made on the threads

Polypropylene PP - Chemical Resistance

Chemical resistance of PolyPropylene - PP - to some common acids, bases, organic substances and solvents

Pressfit Pipes Dimensions

Dimension of pressfit pipes

Schedule - Terminology

Introduction to pipes and the schedule terminology

Schedule and Pipe Thickness

Introduction to the Schedule, standard wall - STD, extra strong wall - XS - and double extra strong wall - XXS terminology

Smaller Circles in Larger Circles

A tool to estimate the number of smaller circles that fits in a larger circle - or how many pipes or wires that fits in a larger pipe

Stainless Steel Pipes - Dimensions and Weights ANSI/ASME 36.19

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

Stainless Steel Weld Fittings - ANSI/ASME B36.19

Dimensions of stainless steel weld fittings according ANSI/ASME B36.19

Steel Pipe Bundling Schedule

Bundling schedule - Standard Weight and Extra Strong Steel Pipes

Steel Pipes - Reference Chart

ANSI pipe schedules in inches - outside dimension and wall thickness

Steel Pipes and Weights

Weight of steel pipes and tubing

Steel Pipework Support

Recommended support of steel pipes

Steel Tubes BS 1387 (EN 10255)

Dimensions and weights of steel tubes according BSi - BS 1387:1985 (EN 10255) Specification for screwed and socketed steel tubes and tubulars and for plain end steel tubes suitable for welding or for screwing to BS 21 pipe threads

Support Copper Pipework

Maximum spacing between supports for copper tubing

Support Spacing for ABS, PE, PVC, Fiberglass and Steel Pipes

Support span for ABS, PE, PVC, Fiberglass and Steel Pipes

Supporting Pressfit Pipes

Maximum span between supports of pressfit pipes

Thread Standards - Piping

Piping thread standards

Thread Standards Used for Piping and Fluid Connectors

Thread designations and standards for threads used in piping and fluid connectors

Water Content in Pipes

Estimating water content in pipes - volume and weight

Weight of Welded Steel Pipes

Nominal weight of welded steel pipes ranging 26 - 60 inches

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