ISO 2327:1972

Pneumatic handling appliances for loose bulk materials - Piping

Specifies the dimensions of piping in the pneumatic handling of loose bulk materials in three series, light, medium and strong.

Engins de manutention pneumatique pour produits en vrac — Tuyauterie

Naprave za pnevmatski transport sipkih materialov - Cevovodi

General Information

• Status: Published
• Publication Date: 31-May-1972
• ICS: 53.040.30 - Pneumatic transport and its components
• Technical Committee: ISO/TC 101 - Continuous mechanical handling equipment
• Drafting Committee: ISO/TC 101 - Continuous mechanical handling equipment
• Current Stage: 9093 - International Standard confirmed
• Start Date: 05-May-2025
• Completion Date: 13-Dec-2025
• Ref Project: SIST ISO 2327:1997 - Pneumatic handling appliances for loose bulk materials -- Piping

Overview

ISO 2327:1972 - Pneumatic handling appliances for loose bulk materials - Piping defines standard piping dimensions used in pneumatic conveying systems for loose bulk materials. Published by ISO (Technical Committee ISO/TC 101), the standard specifies internal diameter (D), external diameter (D1) and wall thickness (e) for pipe in three strength series: light, medium, and strong. Dimension values are given in millimetres and a tabulated range covers typical conveying installations.

Key Topics

• Scope and purpose: standardizes pipe dimensions for pneumatic handling of bulk solids to support interchangeability and system design.
• Dimensional parameters: internal diameter (D), external diameter (D1) and wall thickness (e) are defined and tabulated.
• Three series: pipes categorized as light, medium or strong according to wall thickness and mechanical capability.
• Tabulated sizes: the table lists commonly used diameters (approximately 48.3 mm up to 368 mm) and corresponding external diameters and thicknesses.
• Normative notes: recommended sizes are highlighted in the original table; the standard cross-references ISO/R 336 for steel tube dimensions and mass per unit length.

Applications

ISO 2327:1972 is directly applicable to the design, specification and procurement of piping used in pneumatic conveying systems handling loose bulk materials such as powders, granules and pellets. Typical applications include:

• Pneumatic conveyors in cement, chemical, food processing and agricultural industries
• Bulk handling equipment in mining, ports and logistics terminals
• Plant piping layout for material transfer, suction and pressure lines
• Specification and tender documents for OEMs and system integrators

Practical uses:

• Select appropriate pipe diameter and wall thickness for convey line capacity and wear resistance
• Ensure compatibility and interchangeability between suppliers and system components
• Reference a recognized international dimension set when preparing procurement specifications

Who uses this standard

• Mechanical and process engineers designing pneumatic conveying systems
• Pipe and tube manufacturers producing standardized conveying piping
• Equipment OEMs, fabricators and plant operators
• Procurement and quality engineers specifying material and dimensional compliance

Related Standards

• ISO/R 336 - Steel tubes (welded and seamless): general table of dimensions and masses (referenced in ISO 2327 for tube dimensional data)
• Industry-specific pneumatic conveying guidance and wear/abrasion standards (consult local and sector standards for material selection and testing)

By standardizing piping sizes for pneumatic handling, ISO 2327:1972 helps reduce design ambiguity, improves supplier interoperability and streamlines procurement for bulk-material conveying systems.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-1997
Naprave za pnevmatski transport sipkih materialov - Cevovodi
Pneumatic handling appliances for loose bulk materials -- Piping
Engins de manutention pneumatique pour produits en vrac -- Tuyauterie
Ta slovenski standard je istoveten z: ISO 2327:1972
ICS:
53.040.30 3QHYPDWLþQLWUDQVSRUWLQ Pneumatic transport and its
QMHJRYLVHVWDYQLGHOL components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL STANDARQ
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MEXRYHAI’OAHA5l OI’rAHM3AllMII l-lo CTAHLlAPTM3ALlMM l 0RGANISATION INTERNATIONALE DE NORMALISATION
Pneumatic handling appliances for loose bulk materials -
Piping
First edition - 1972-06-15
_~ ~~
Ref. No. IS0 23274972 (E)
UDC 621.867.85
materials handling equipment, conveyors, pneumatic conveyors, bulk handling, pipes (tubes).
Descriptors :
Price based on 1 page
FOREWORD
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 Member Bodies). The work of developing
International Standards is carried out through IS0 Technical Committees. Every
Member Body interested in a subject for which a Technical Committee has been set
up has the right to be represented on that Committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the Technical Committees are circulated
to the Member Bodies for approval before their acceptance as International
Standards by the IS0 Council.
International Standard IS0 2327 was drawn up by Technical Committee
I SO/TC 101, Continuous m
...

INTERNATIONAL STANDARQ
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION l MEXRYHAI’OAHA5l OI’rAHM3AllMII l-lo CTAHLlAPTM3ALlMM l 0RGANISATION INTERNATIONALE DE NORMALISATION
Pneumatic handling appliances for loose bulk materials -
Piping
First edition - 1972-06-15
_~ ~~
Ref. No. IS0 23274972 (E)
UDC 621.867.85
materials handling equipment, conveyors, pneumatic conveyors, bulk handling, pipes (tubes).
Descriptors :
Price based on 1 page
FOREWORD
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 Member Bodies). The work of developing
International Standards is carried out through IS0 Technical Committees. Every
Member Body interested in a subject for which a Technical Committee has been set
up has the right to be represented on that Committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work.
Draft International Standards adopted by the Technical Committees are circulated
to the Member Bodies for approval before their acceptance as International
Standards by the IS0 Council.
International Standard IS0 2327 was drawn up by Technical Committee
I SO/TC 101, Continuous mechanical handling equipment.
It was approved in October 1971 by the Member Bodies of the following countries:
Belgium India South Africa, Rep. of
Czechoslovakia Ireland Spain
Egypt, Arab Rep .of Italy Sweden
Finland Thailand
Korea, Rep, of
France Netherlands Turkey
Germany New Zealand United Kingdom
The Member Body of the following country expressed disapproval of the document
...

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION *MEXLIY HAI’OLIHAII 01’1 AHU3AUUII no CTAHLIAPTU3AUMtl .ORGANISATION INTERNATIONALE DE NORMALISATION
Engins de manutention pneumatique pour produits en vrac -
Tuyauterie
Premiere bdition - 1972-06-15
-
U
-
Réf. NO : IS0 2327-1972 (F)
CDU 621.867.85
N
b
Descripteurs : materiel de manutention, transporteur, convoyeur pneumatique, manutention en vrac, tuyau.
b
N
O
N
Prix basé sur 1 page
s
AVANT-PROPOS
IS0 (Organisation Internationale de Normalisation) est une fédération mondiale
d'organismes nationaux de normalisation (Comités Membres ISO). L'élaboration de
Normes Internationales est confiée aux Comités Techniques ISO. Chaque Comité
Membre intéressé par une étude a le droit de faire partie du Comité Technique
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec I'ISO, participent également aux travaux.
Les Projets de Normes Internationales adoptés par les Comités Techniques sont
soumis aux Comités Membres pour approbation, avant leur acceptation comme
Normes Internationales par le Conseil de I'ISO.
La Norme Internationale IS0 2327 a été établie par le Comité Technique
lSO/TC 1 01, Engins de manutention continue.
Elle fut approuvée en octobre 1971 par les Comités Membres des pays suivants :
Afrique du Sud, Rép. d' Finlande Pays-Bas
Allemagne France Royaume- Uni
Belgique Inde Suède
Corée, Rép. de Irlande Tchécoslovaquie
Egypte, Rép. arabe d' Italie Thaïlande
Espagne Nouvelle-Zélande Turquie
Le Comité Membre du pays suivant a dé
...

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .MEXLlYHAl’OilHAII OI’rAHM3AUMA fl0 CTAHaAPTM3AUMM .ORGANISATION INTERNATIONALE DE NORMALISATION
Engins de manutention pneumatique pour produits en vrac -
Tuyauterie
Première ddition - 1972-06-15
-
Ref. No : IS0 2327 -1972 (F)
1 U CDU 621.867.85
N
..
r-
?
Descripteurs : matériel de manutention, transporteur, convoyeur pneumatique, manutention en vrac, tuyau.
r-
N
m
N
Prix basé sur 1 page
E
AVANT-PROPOS
IS0 (Organisation Internationale de Normalisation) est une fédération mondiale
d'organismes nationaux de normalisation (Comités Membres ISO). L'élaboration de
Normes Internationales est confiée aux Comités Techniques ISO. Chaque Comité
Membre intéressé par une étude a le droit de faire partie du Comité Technique
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec I'ISO, participent également aux travaux.
Les Projets de Normes Internationales adoptés par les Comités Techniques sont
soumis aux Comités Membres pour approbation, avant leur acceptation comme
par le Conseil de I'ISO.
Normes Internationales
La Norme Internationale IS0 2327 a été établie par le Comité Technique
ISOKC 101, Engins de manutention continue.
Elle fut approuvée en octobre 1971 par les Comités Membres des pays suivants :
Afrique du Sud, Rép. d' Finlande Pays-Bas
Allemagne France Royaume-Uni
Belgique Inde Suède
Corée, Rép. de Irlande Tchécoslovaquie
Egypte, Rép. arabe d' Italie Thaïlande
Espagne Nouvelle
...