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B51-14 (R2019) – Boiler, pressure vessel, and pressure piping code

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ISO 18955:2025

ISO 18955:2025 Railway applications — Suspension components — Rubber diaphragms for pneumatic suspension springs

CDN $347.00

This publication was last reviewed and confirmed in 2025.

Railway applications — Suspension components — Rubber diaphragms for pneumatic suspension springs

SKU: 988f23b90c57 Categories: ,

Description

This document specifies the characteristics for suspension diaphragms to achieve, together with applicable inspection and test methods to be carried out for verification.

An air spring system usually consists of a diaphragm (subject of this document) and additional components such as either emergency or additional springs, or both, and other assembly parts. This document does not detail the other components of air suspension or control systems such as air reservoirs, air piping, levelling system, frames, stiffeners, emergency suspension systems or elastic supports (such as series springs), etc., which will affect the diaphragm performance.

This document applies to suspension diaphragms (inflated with air) designed to be fitted on railway vehicles and similar vehicles running on dedicated tracks with permanent guide systems, whatever the type of rail and the running surface. These parts are typically made with elastomer, textile fabrics and metallic beads.

Edition

1

Published Date

2026-06-18

Status

PUBLISHED

Pages

43

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

This document specifies the characteristics for suspension diaphragms to achieve, together with applicable inspection and test methods to be carried out for verification.

An air spring system usually consists of a diaphragm (subject of this document) and additional components such as either emergency or additional springs, or both, and other assembly parts. This document does not detail the other components of air suspension or control systems such as air reservoirs, air piping, levelling system, frames, stiffeners, emergency suspension systems or elastic supports (such as series springs), etc., which will affect the diaphragm performance.

This document applies to suspension diaphragms (inflated with air) designed to be fitted on railway vehicles and similar vehicles running on dedicated tracks with permanent guide systems, whatever the type of rail and the running surface. These parts are typically made with elastomer, textile fabrics and metallic beads.

Previous Editions

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