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

- the most efficient way to navigate the Engineering ToolBox!

ISO 228 - Pipe Threads where Pressure-tight Joints are not made on the Threads

Requirements for thread form, dimensions, tolerances and designation for fastening pipe threads, thread sizes

Sponsored Links

The ISO 228 "Pipe Threads where Pressure-tight Joints are not made on the Threads" consists of the following parts:

ISO 228-1:2000 Dimensions, tolerances and designation
ISO 228-2:1987 Verification by means of limit gauges

G Size (in)	Major (Outside) Diameter (mm)	Minor (Nut) Diameter (mm)	Core Hole Diameter (mm)	Thread Pitch
G Size (in)	Major (Outside) Diameter (mm)	Minor (Nut) Diameter (mm)	Core Hole Diameter (mm)	(in)	(mm)
G 1/8	9.73	8.85	8.80	28	0.907
G 1/4	13.16	11.89	11.80	19	1.337
G 3/8	16.66	15.39	15.25	19	1.337
G 1/2	20.95	19.17	19.00	14	1.814
G 5/8	22.91	21.13	21.00	14	1.814
G 3/4	26.44	24.66	24.50	14	1.814
G 7/8	30.20	28.42	28.25	14	1.814
G 1	33.25	30.93	30.75	11	2.309
G 1 1/8	37.90	35.58	35.30	11	2.309
G 1 1/4	41.91	39.59	39.25	11	2.309
G 1 3/8	44.32	42.00	41.70	11	2.309
G 1 1/2	47.80	45.48	45.25	11	2.309
G 1 3/4	53.74	51.43	51.10	11	2.309
G 2	59.61	57.29	57.00	11	2.309
G 2 1/4	65.71	63.39	63.10	11	2.309
G 2 1/2	75.18	72.86	72.60	11	2.309
G 2 3/4	81.53	79.21	78.90	11	2.309
G 3	87.88	85.56	85.30	11	2.309
G 3 1/4	93.98	91.66	91.50	11	2.309
G 3 1/2	100.33	98.01	97.70	11	2.309
G 3 3/4	106.68	104.30	104.00	11	2.309
G 4	113.03	110.71	110.40	11	2.309

G-threads have a parallel shape in accordance with the DIN-EN-ISO 228-1 standard with flank angle 55^o.
G/R/Rp - Whitworth Pipe Threads (BSPP/BSPT)
ISO 7-1 Pressure Tight Thread Joints

Example - Typical designation for Thread according ISO 228

ISO 228 G 3 1/4"

Sponsored Links

Related Topics

Threads - Thread data - metric, unified, ACME and others
Dimensions - Sizes and dimensions of pipes and tubes, and their fittings - inside and outside diameter, weight and more

Related Documents

ANSI B1.20.1 - NPT - American National Standard Taper Pipe Threads - NPT and NPTF pipe threads - dimensions according ANSI/ASME B1.20.1/3
British Standard Brass - British Brass Thread is an imperial unit based screw thread
British Standard Cycle Thread - British Standard Cycle is a British Imperial screw thread standard
BS 21 - Pressure Tight Pipe Thread Joints - BSPT - British Standard Pipe Taper threads & BSP or BSPF - British Standard Pipe Parallel (Straight) threads
EN 10226 - Pipe threads where pressure tight joints are made on the threads - Dimensions - Pipe threads where pressure tight joints are made on the threads - Part 1: Taper external threads and parallel internal threads
ISO 7 - Pipe Threads where Pressure-tight Joints are made on the Threads - Pressure-tight joints made on the pipe threads
ISO 724 - Metric Threads - Dimensions of metric threads according ISO 724
Standards Applied for Piping Threads - Applied threaded standards used for piping connections
Threads commonly used in Piping - Piping thread standards
Whitworth Pipe Threads - BSPP (G) - British Standard Pipe Parallel and BSPT (R/Rp) – British Standard Tapered Pipe for pipes and tapered threads - G/R/Rp
Withworth Threads - Taps and Drill Sizes - Taps and drill sizes used for Whitworth - ISO 7 and ISO 228 threads

Tag Search

en: iso 228 pipe threads pressure thight

Sponsored Links

Search the Engineering ToolBox

- the most efficient way to navigate the Engineering ToolBox!

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 Pro Sketchup Extension Warehouse!

Translate this page to

About the Engineering ToolBox!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.

Advertise in the ToolBox

If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. You can target the Engineering ToolBox by using AdWords Managed Placements.

Citation

This page can be cited as

Engineering ToolBox, (2018). ISO 228 - Pipe Threads where Pressure-tight Joints are not made on the Threads. [online] Available at: https://www.engineeringtoolbox.com/iso-228-pipe-threads-d_2037.html [Accessed Day Mo. Year].

Modify access date.

close

3D Engineering ToolBox - draw and model technical applications!

2D Engineering ToolBox - create and share online diagram drawing templates!

Engineering ToolBox Apps - mobile online and offline engineering applications!

Scientific Online Calculator

Scientific Calculator

4 3

Sponsored Links