Pneumatic standards

Find the right pneumatic standard.

Choose the component, what you need to do, and where the product will be used. You will see the most relevant standard plus any separate market requirements.

Updated

  1. 01
    Choose the product

    Cylinder, valve, air preparation, system, or drawing.

  2. 02
    See the closest standard

    Compare dimensions, performance, safety, air quality, or documentation.

  3. 03
    Check where the product will be used

    See whether separate certification or registration may apply.

Choose by application

Get a practical starting point.

Select the product, task, destination market, drawing standard, and any special application conditions.

1 · Product
2 · What you need to do
3 · Destination market
4 · Drawing standard (if known)
5 · Special application condition
Recommended starting standard

ISO 15552:2018

Detachable-mounting pneumatic cylinders, 32–320 mm bore

Basic, mounting, and accessory dimensions for 10 bar single- or double-rod cylinders with detachable mountings.

How to use this standard

Start from the dimensional or product-family reference, then verify the actual manufacturer drawing. Profile and tie-rod cylinder replacement, mounting review, and accessory alignment.

What to verify before ordering
  • Confirm bore, stroke, mounting code, rod end, ports, sensors, and cushioning.
  • Compare the complete product envelope and accessory clearances.
  • Use the selected manufacturer drawing as the final interchange record.
  • Confirm the exact current mounting code, bore, stroke, port, rod end, sensor arrangement, cushioning, and complete product envelope.
Destination market check

International / market not fixed · General industrial use

No single global pneumatic certification mark exists. Use the applicable technical standard and identify the destination market before declaring conformity.

ISO alignment is a technical reference, not a blanket market approval or proof of interchangeability.

Documents to prepare
  • Record the standard and edition used for dimensions, testing, safety, or documentation.
  • Identify the legal manufacturer, destination market, product configuration, and intended use.
  • Keep the current technical file: drawings, ratings, materials, test evidence, and instructions.
  • Confirm the final scope and conformity route with the responsible authority or qualified compliance reviewer.
ISO standards catalogue ↗

Common applications

Common starting points by application.

Use this compact table when you already know the product or engineering task. Use the selection tool above when the market or application conditions also matter.

ApplicationStart withUse it for
Profile / tie-rod cylindersISO 15552:2018Mounting, bore, stroke, ports, and accessory dimensions for the stated cylinder family.
Round mini cylindersISO 6432:2015Basic dimensions for metric round-body cylinders in the standard's bore range.
Compact cylindersISO 21287:2004Core compact-cylinder dimensions; not automatic interchangeability.
Pneumatic component flowISO 6358-1:2013Compressible-flow test and reporting methods for pneumatic components.
Compressed-air purityISO 8573-1:2010Particle, water, and oil classes at a defined measurement point.

A shared standard does not prove that two products are interchangeable. Confirm the manufacturer drawing, ports, mounting, ratings, sensing, and overall envelope.

Destination markets

Check the destination market separately.

A technical standard does not automatically grant a product mark. The applicable requirements depend on the exact product, configuration, use, and destination.

ISO mark

International

ISO / IEC technical baseline
No single global pneumatic certification mark

Identify the destination market and product scope before declaring conformity.

European Union flag

European Union / EEA

EN / ISO adoption
CE marking when applicable legislation is triggered

PED, ATEX, EMC, RoHS, or another route applies only to the covered configuration.

United Kingdom flag

United Kingdom

BS / ISO adoption
Current UK sector marking and conformity route

Confirm Great Britain versus Northern Ireland and the rules for the exact product sector.

United States flag

United States

ANSI · NFPA · UL · ASME
NRTL listing, AHJ acceptance, or pressure route when in scope

Electrical, pressure, and hazardous-location review is product- and jurisdiction-specific.

Canada flag

Canada

CSA / adopted international standards
SCC-accredited certification or CRN when in scope

Separate electrical certification from provincial pressure-equipment registration.

China flag

China

GB / GB/T national standards
CCC, special-equipment, or Ex route when covered

CCC applies only when the exact product is included in the compulsory catalogue.

Japan flag

Japan

JIS / adopted international standards
PSE, high-pressure-gas, or Ex review when covered

PSE applies only to listed electrical appliances and materials.

Explosion protection Ex mark

Hazardous locations

IECEx · ATEX · local schemes
Explosion-protection certification for the classified location

Zone, gas or dust group, temperature class, ambient range, and configuration determine the route.

Browse standards

Compare scope, use, and differences.

Search by product, region, or engineering task. Open a standard to compare what it covers, what it does not cover, and what to verify.

Product family
Region / system
Comparison type

Compare the scope first, then verify the exact product drawing and destination requirements.

13 standards shown

ISO · International / ISOISO 15552:2018

Detachable-mounting pneumatic cylinders, 32–320 mm bore

Basic, mounting, and accessory dimensions for 10 bar single- or double-rod cylinders with detachable mountings.

Compare scope, use, and differences
Use it for

Profile and tie-rod cylinder replacement, mounting review, and accessory alignment.

What it covers

Pneumatic cylinders

Type of standard

Dimensional interface

Related standard

Use ISO 15552:2018 as the current dimensional reference and the selected manufacturer's current drawing as the product comparison record.

Key differences

The standard aligns selected basic, mounting, and accessory dimensions. It does not make every port, rod end, sensor groove, cushioning system, or overall envelope identical.

What to verify

Confirm the exact current mounting code, bore, stroke, port, rod end, sensor arrangement, cushioning, and complete product envelope.

Current edition

Published edition; confirmed by ISO in 2025.

ISO · International / ISOISO 6432:2015

Round-body single-rod cylinders, 8–25 mm bore

Basic and mounting dimensions for commonly used 10 bar metric mini cylinders.

Compare scope, use, and differences
Use it for

Mini-cylinder mounting interchange checks where the application uses the specified bore range.

What it covers

Pneumatic cylinders

Type of standard

Dimensional interface

Related standard

Use ISO 6432:2015 as the current round-body mini-cylinder reference; a catalog family name alone does not prove that this interface is used.

Key differences

Confirm the stated bore range, mounting thread, port, piston-rod thread, sensor arrangement, stroke, and complete envelope for the selected product.

What to verify

Replaces the 1985 edition. Similar bore and stroke do not prove interchangeability; verify port, rod thread, mounting, and sensor details.

Current edition

Published edition; ISO lists it under systematic review.

ISO · International / ISOISO 21287:2004

Compact pneumatic cylinders, 20–100 mm bore

Metric compact single-rod cylinders for up to 10 bar, with or without magnetic sensing.

Compare scope, use, and differences
Use it for

Compact-cylinder envelope and mounting review where adjustable cushioning is not required.

What it covers

Pneumatic cylinders

Type of standard

Dimensional interface

Related standard

Catalog families described as compact, short-stroke, or UNITOP may use another dimensional pattern and require a drawing-by-drawing check.

Key differences

Body length, port position, rod end, mounting pattern, sensing, and cushioning options can differ even when bore and stroke labels match.

What to verify

Do not treat every catalog product described as compact or UNITOP as ISO 21287. Compare body length, port position, rod end, and mounting pattern.

Current edition

Published edition; confirmed by ISO in 2023.

ISO · International / ISOISO 4414:2010

General rules and safety requirements for pneumatic systems

System and component principles covering design, construction, modification, installation, operation, maintenance, reliability, energy, and hazards.

Compare scope, use, and differences
Use it for

Machine-level pneumatic safety review and specification preparation.

What it covers

Pneumatic systems

Type of standard

System safety requirements

Related standard

Use it with the applicable machine risk assessment, regulations, and component instructions; it has no dimensional interchange counterpart.

Key differences

It addresses system lifecycle and hazards rather than defining a replacement envelope for one cylinder, valve, fitting, or air-treatment unit.

What to verify

This is a system-safety reference, not a cylinder or valve dimensional interchange standard.

Current edition

Published edition; confirmed by ISO.

ISO · International / ISOISO 6358-1:2013

Steady-state flow-rate characteristics of pneumatic components

Test methods for compressible-fluid components with fixed or variable internal flow paths.

Compare scope, use, and differences
Use it for

Compare sonic conductance, critical pressure ratio, and standardized flow test results.

What it covers

Valves and flow components

Type of standard

Performance test method

Related standard

Cv, Kv, nominal flow, and manufacturer flow curves are alternative reporting conventions, not direct equivalent labels.

Key differences

The result depends on the declared test method, absolute pressures, reference state, temperature, and component configuration. Reconcile those conditions before conversion.

What to verify

C and b values are not direct labels for Cv, Kv, or a catalog nominal flow. Conversion needs the test convention and operating conditions.

Current edition

Published edition with amendments, including Amendment 2:2026 on uncertainty evaluation.

ISO · International / ISOISO 8573-1:2010

Compressed-air contaminants and purity classes

Purity classes for particles, water, and oil, plus general contaminant guidance.

Compare scope, use, and differences
Use it for

State the required air-quality class at the point of use and align filtration and drying choices.

What it covers

Air preparation and compressed air

Type of standard

Purity classification

Related standard

Filter grades, oil-removal claims, and dryer ratings describe component performance; they do not automatically establish the delivered ISO purity class.

Key differences

A complete purity statement identifies particle, water, and oil classes and the measurement location. Installation and upstream contamination affect the delivered result.

What to verify

Write all three class positions and the measurement location. A single class number is incomplete.

Current edition

Published edition; ISO lists a revision project in development.

ISO · International / ISOISO 5598:2020

Fluid-power systems and components vocabulary

Vocabulary for fluid-power systems and components in English, French, and German.

Compare scope, use, and differences
Use it for

Resolve terminology across specifications, drawings, catalogs, and multilingual technical discussions.

What it covers

Fluid power documentation

Type of standard

Terminology reference

Related standard

Catalog vocabulary and regional trade terms may be less precise; map them to the definition that matches the actual pneumatic context.

Key differences

A shared definition aligns language only. It does not establish product dimensions, performance, material suitability, conformity, or interchangeability.

What to verify

Use it to align meanings, not to infer dimensional or performance equivalence.

Current edition

Published edition; confirmed by ISO.

ISO · International / ISOISO 1219-2:2012

Pneumatic and hydraulic circuit-diagram construction rules

Defines how component functions, connections, signal paths, flow paths, and document layout are organized in a fluid-power circuit diagram.

Compare scope, use, and differences
Use it for

Prepare and review the structure, connections, and presentation of current pneumatic circuit diagrams.

What it covers

Fluid power documentation

Type of standard

Current circuit-diagram convention

Related standard

Use ISO 1219-1:2012 for function representation and ISO 1219-3:2016 when modular or connected-component documentation is required.

Key differences

Circuit-diagram rules organize documentation but do not establish the dimensions, ratings, materials, certification, or interchangeability of the represented components.

What to verify

Confirm the diagram structure and symbol source, then verify every represented component against its product data and application requirements.

Current edition

Current international standard; confirmed in December 2023.

ISO · International / ISOISO 1219-3:2016

Modular documentation rules for connected fluid-power components

Defines how multi-function or connected components are combined into clear modules inside pneumatic and hydraulic circuit documentation.

Compare scope, use, and differences
Use it for

Prepare structured circuit documents for manifolds, valve assemblies, and other connected or multi-function components.

What it covers

Fluid power documentation

Type of standard

Connected-component documentation

Related standard

Supplements ISO 1219-1:2012 and ISO 1219-2:2012; it does not replace their symbol and circuit-diagram rules.

Key differences

The modular drawing method is a documentation convention and does not prove that physical manifolds, valves, or assemblies share interfaces or performance.

What to verify

Use the complete ISO 1219 set specified by the project and keep the component schedule linked to verified product data.

Current edition

Current international standard; confirmed in 2022.

SAC / China · China / GBGB/T 786.1-2021

China fluid-power circuit-documentation standard

Defines how hydraulic and pneumatic component functions, connections, ports, and operating states are represented in current Chinese circuit documentation and technical drawings.

Compare scope, use, and differences
Use it for

Prepare, interpret, or compare pneumatic circuit documents used for a current China-market project.

What it covers

Fluid power documentation

Type of standard

National documentation convention

Related standard

Use ISO 1219-1:2012 with Amendment 1:2016 as the international comparison point, while retaining the current Chinese edition as the project reference.

Key differences

Compared with the ISO route, Chinese adoption details, presentation, numbering, and annotations can differ. It governs circuit communication, not component dimensions or performance.

What to verify

Confirm the project edition and drawing rules, then verify each represented valve, actuator, port, connection, and operating state against the component schedule.

Current edition

Current Chinese national reference, effective 1 December 2021.

JIS / Japan · Japan / JISJIS B 0125-1:2020

Japan fluid-power circuit-documentation standard

Defines the current Japanese circuit-documentation convention for hydraulic and pneumatic functions, connections, ports, and operating states.

Compare scope, use, and differences
Use it for

Prepare, interpret, or compare pneumatic circuit documents used for a current Japan-market project.

What it covers

Fluid power documentation

Type of standard

National documentation convention

Related standard

Modified adoption of ISO 1219-1:2012 with Amendment 1:2016; confirm the JIS-specific modifications for the project.

Key differences

JIS identifies a modified ISO adoption, so Japanese additions and presentation rules must be reviewed before treating its documentation as identical to ISO 1219-1.

What to verify

Use the current JIS edition for Japanese projects and record how component functions, connections, and operating states map to the project documentation library.

Current edition

Valid current Japanese standard; confirmed on 21 October 2024.

ISO · International / ISOISO 1219-1:2012 + Amd 1:2016

International fluid-power circuit-documentation framework

Defines a common functional drawing language for hydraulic and pneumatic equipment, used with separate rules for diagram structure and connected component modules.

Compare scope, use, and differences
Use it for

Prepare and interpret pneumatic circuit documentation for international or ISO-specified projects.

What it covers

Fluid power documentation

Type of standard

International documentation convention

Related standard

Use together with ISO 1219-2:2012 for circuit-diagram rules and ISO 1219-3:2016 for symbol modules and connected symbols.

Key differences

It standardizes how functions are communicated in documents. It does not define component dimensions, port threads, voltage, flow capacity, materials, certification, or interchangeability.

What to verify

Use the ISO documentation set to identify function and circuit relationships, then verify every physical, performance, and market requirement against product data.

Current edition

Published current international reference with Amendment 1:2016.

NFPA U.S. TAG / ISO · United States / project specificationISO 1219-1:2012 (U.S. project route)

U.S. project route for fluid-power circuit documentation

Uses the current ISO 1219 documentation framework when adopted by a U.S. project, with client, industry, or authority additions stated in the project specification.

Compare scope, use, and differences
Use it for

State the current drawing convention in the U.S. project specification, contract, and controlled symbol library.

What it covers

Fluid power documentation

Type of standard

Project documentation convention

Related standard

ISO 1219-1:2012 with Amendment 1:2016 is the current international reference; the U.S. project must explicitly adopt its applicable parts.

Key differences

This is a project adoption route, not a separate universal U.S. product standard, certification, or interchangeability claim. The controlled project specification determines the required convention.

What to verify

Record the specified ISO edition and any client or industry additions before preparing, converting, or approving a circuit drawing.

Current edition

Current project-specification route supported by U.S. participation in ISO/TC 131; verify the contract and controlled drawing standard.

Drawing standards

Compare current GB, JIS, ISO, and U.S. project references.

Open this comparison when a drawing uses a national or project-specific symbol standard.

Compare the four drawing standardsGB · JIS · ISO · U.S.
Comparison pointChinaGBJapanJISInternationalISOUnited StatesU.S. project
Current standardGB/T 786.1-2021 ↗JIS B 0125-1:2020 ↗ISO 1219-1:2012 + Amd 1:2016 ↗ISO 1219-1:2012 (U.S. project route) ↗
What it coversDefines how hydraulic and pneumatic component functions, connections, ports, and operating states are represented in current Chinese circuit documentation and technical drawings.Defines the current Japanese circuit-documentation convention for hydraulic and pneumatic functions, connections, ports, and operating states.Defines a common functional drawing language for hydraulic and pneumatic equipment, used with separate rules for diagram structure and connected component modules.Uses the current ISO 1219 documentation framework when adopted by a U.S. project, with client, industry, or authority additions stated in the project specification.
Relationship to ISOCurrent Chinese national reference. Compare its adoption details and project rules with the ISO source before declaring symbols identical.Modified adoption of ISO 1219-1:2012 with Amendment 1:2016; review the JIS-specific modifications used by the project.International graphical-symbol baseline used with ISO 1219-2 for circuit diagrams and ISO 1219-3 for connected symbol modules.U.S. projects can adopt the current ISO 1219 framework and document any client or industry additions in the controlled drawing specification.
Use in current projectsCurrent Chinese national reference, effective 1 December 2021.Valid current Japanese standard; confirmed on 21 October 2024.Published current international reference with Amendment 1:2016.Current project-specification route supported by U.S. participation in ISO/TC 131; verify the contract and controlled drawing standard.
What to verifyConfirm the project edition and drawing rules, then verify each represented valve, actuator, port, connection, and operating state against the component schedule.Use the current JIS edition for Japanese projects and record how component functions, connections, and operating states map to the project documentation library.Use the ISO documentation set to identify function and circuit relationships, then verify every physical, performance, and market requirement against product data.Record the specified ISO edition and any client or industry additions before preparing, converting, or approving a circuit drawing.

On a phone, swipe the table horizontally. Use the standard named in the project, then verify the component function, ports, normal state, actuation, and drawing library.

Before requesting a quote

Common questions before you specify or request a quote.

01Standards and certificationDoes every pneumatic component need CE, UL, CSA, CCC, or PSE certification?

No. These marks and approval systems have defined product and legal scopes. A purely mechanical cylinder, an electrically operated valve, an air receiver, and an ATEX valve can follow very different routes even when all are used in one pneumatic machine.

02Standards and certificationDoes the same ISO standard guarantee direct interchangeability?

No. A standard can align selected dimensions or test methods while leaving design choices to the manufacturer. Confirm bore, stroke, mounting code, port and rod threads, sensor arrangement, cushioning, pressure, materials, and envelope against the actual drawings.

03Standards and certificationCan Cv, Kv, nominal flow, and ISO 6358 values be compared directly?

Not from the label alone. The coefficient convention, reference conditions, upstream and downstream pressures, temperature, and test method must be reconciled first.

04Standards and certificationWhich standard should I put on a pneumatic-cylinder RFQ?

State the applicable standard and edition, then add the exact bore, stroke, mounting style, rod end, ports, pressure, sensing, cushioning, environment, target market, and drawing reference needed for the application.

Need a product-level check?

Send the model, drawing, mounting, ratings, destination market, and application conditions. Bepto Pneumatic can review the technical file needed for the next step.