ISO 4231:2016

Name: ISO 4231:2016 — Hand- and machine-operated circular screwing dies for parallel pipe threads — G series
SKU: ISO 4231:2016
Price: 25 EUR
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Hand- and machine-operated circular screwing dies for parallel pipe threads — G series

Название (английский):

ISO 4231:2016

Hand- and machine-operated circular screwing dies for parallel pipe threads — G series

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 4
Дата публикации:: 14 октября 2016 г.
Издание:: ISO IS 4231 edition 3 version 1
ICS:: 25.100.50

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Описание (английский):

ISO 4231:2016 is a supplement to ISO 2568 and ISO 4230 and specifies the dimensions of hand- and machine-operated circular screwing dies intended for production of parallel pipe threads, G series, in accordance with ISO 228‑1. The general dimensions of these dies (diameter, thickness and fixing dimensions) are in accordance with ISO 2568 so as to permit the driving of hand-operated dies with the aid of the die stocks defined in that document.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 4231:2016 - "Hand- and machine-operated circular screwing dies for parallel pipe threads - G series" - is an international standard that specifies the dimensional and marking requirements for circular screwing dies used to produce G series parallel pipe threads (in accordance with ISO 228-1). Published as the third edition (2016), this document is a supplement to ISO 2568 and ISO 4230, aligning general die geometry so hand-operated dies can be driven using the die stocks defined in ISO 2568.

Key topics and requirements

Scope and applicability: Defines dimensions for both hand- and machine-operated circular screwing dies intended to produce G‑series parallel pipe threads.

Dimensions: General dimensions (diameter, thickness, fixing features) are specified and illustrated (Figure 1) and tabulated in Table 1. Table 1 lists thread designations (from 1/16 up to 2 1/4 in), basic diameters, pitch and die body dimensions (D, E, C, b, a) in millimetres.

Tolerances:

Precision screwing dies: tolerances on D (f10) and E (js12).
Non-precision screwing dies: tolerances are left to the manufacturer’s discretion.

Marking: Dies must be marked with the letter G immediately followed by the thread designation (example: “G 3/8”). Where fully compliant, manufacturers may append the ISO symbol.

Manufacturer discretion: The standard leaves certain shape details (e.g., V-groove shape, clearance holes) to the manufacturer’s design choices.

Data mapping: Annex A provides a relationship between this standard’s designations and preferred symbols from ISO 13399 (cutting tool data exchange).

Applications and users

ISO 4231:2016 is directly relevant to:

Tool manufacturers designing and producing hand- and machine-operated circular screwing dies for G series threads.

Machinists and maintenance technicians performing thread cutting, repair and rethreading operations on pipes and fittings.

Procurement and quality engineers specifying compliant dies for production lines or maintenance inventories.

Standards bodies and CAD/CAM data integrators mapping die properties to ISO 13399 for data exchange.

Typical applications include production and on-site repair of parallel pipe threads in plumbing, HVAC, hydraulic systems, and general mechanical assemblies where pressure-tight joints are not made on the threads.

Related standards

ISO 228-1 - Pipe threads where pressure-tight joints are not made on the threads (dimensions and designation)

ISO 2568 - Hand- and machine-operated circular screwing dies and hand-operated die stocks

ISO 4230 - Circular screwing dies for taper pipe threads - R series

ISO 13399 - Cutting tool data representation and exchange

Keywords: ISO 4231:2016, circular screwing dies, parallel pipe threads, G series, ISO 228-1, die dimensions, marking, tolerances, ISO 2568.

ISO 4231:2016

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

Related standards

Технические детали

ISO 22810:2010

Horology — Water-resistant watches

ISO 2568:1973

Hand- and machine-operated circular screwing dies and hand-operated die stocks

BS EN ISO 4230:2016

Hand- and machine-operated circular screwing dies for taper pipe threads. R series.

ISO 13399-1:2006

Cutting tool data representation and exchange — Part 1: Overview, fundamental principles and general informat…