ISO 11363-1:2018

Name: ISO 11363-1:2018 — Gas cylinders — 17E and 25E taper threads for connection of valves to gas cylinders — Part 1: Specifications
SKU: ISO 11363-1:2018
Price: 16200 RUB
Availability: InStock

Gas cylinders — 17E and 25E taper threads for connection of valves to gas cylinders — Part 1: Specifications

Название (английский):

ISO 11363-1:2018

Gas cylinders — 17E and 25E taper threads for connection of valves to gas cylinders — Part 1: Specifications

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 9
Дата публикации:: 31 января 2018 г.
Издание:: ISO IS 11363 edition 2 version 1
ICS:: 23.020.30

Тип поставки:

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Цена:16 200 ₽

Описание (английский):

ISO 11363-1:2018 specifies dimensions and tolerances for taper screw threads of nominal diameter 17,4 mm (designated as 17E) and 25,8 mm (designated as 25E) used for the connection of valves to gas cylinders. ISO 11363-1:2018 does not cover the connection requirements for - mechanical strength, - gas tightness, and - capability of repeated assembly and dismounting operations. Gauge inspection is covered by ISO 11363‑2.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 11363-1:2018 - "Gas cylinders - 17E and 25E taper threads for connection of valves to gas cylinders - Part 1: Specifications" defines the geometric specifications for two taper screw threads used to connect valves to gas cylinders. It covers the dimensions and tolerances for nominal diameters 17.4 mm (17E) and 25.8 mm (25E). The standard establishes thread form, pitch, taper and end‑finish so manufacturers and designers can produce compatible valve stems and cylinder necks.

Important exclusions: ISO 11363-1:2018 does not address mechanical strength, gas tightness or the capability for repeated assembly/disassembly. Gauge inspection procedures are covered separately in ISO 11363-2.

Key topics and technical requirements

Thread diameters and reference planes: Nominal valve stem and cylinder neck dimensions are defined (e.g., major, pitch and minor diameters and reference lengths for 17E and 25E).

Thread rotation: Right‑hand thread (tightens clockwise away from observer).

Taper: Nominal taper ratio 3/25, taper angle 6° 52′, taper slope 12%.

Thread profile: British Standard Whitworth (BSW) form with 55° thread angle; profile and thread‑height measurements are made perpendicular to the cone surface.

Pitch: Nominal pitch 1.814 mm.

Thread end finish: Valve stem requires a 45° chamfer 1–2 mm from the reference plane and a groove at the top; cylinder neck chamfer 1–2 mm from entry. The first (small end) thread must be fully formed with maximum clearance.

Marking: Components threaded per this standard shall be marked “17E” or “25E” as applicable.

Dimensional tables and figures: Detailed values and tolerances for both sizes are provided in tables and figures inside the document.

Practical applications

Ensuring interchangeability of cylinder valves and necks across manufacturers.

Guiding CNC and manual machining of valve stems and cylinder necks.

Serving as a reference for design engineers, OEMs, cylinder manufacturers, valve producers and thread tool makers.

Supporting conformity assessment, incoming inspection and quality control (with gauge inspection per ISO 11363-2).

Useful for safety engineers and maintenance organizations verifying correct fittings for compressed gas systems.

Who uses this standard

Gas cylinder manufacturers and repair shops

Valve manufacturers and component suppliers

Mechanical designers and product engineers

Inspection laboratories and certification bodies

Procurement and quality assurance teams in industries using compressed gases (industrial gases, welding, medical, specialty gases)

ISO 11363-1:2018

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications

Who uses this standard

Related standards

Технические детали

BS EN ISO 11363-2:2017

Gas cylinders. 17E and 25E taper threads for connection of valves to gas cylinders. Inspection gauges.

BS EN ISO 11116-1:1999

Gas cylinders. 17E taper thread for connection of valves to gas cylinders - Specifications

ISO 10920:1997

Gas cylinders — 25E taper thread for connection of valves to gas cylinders — Specification

BS EN ISO 6817:1997

Measurement of conductive liquid flow in closed conduits. Method using electromagnetic flowmeters