Railway applications - Braking - Distributor valves and distributor-isolating devices
Railway applications - Braking - Distributor valves and distributor-isolating devices
This document applies to distributor valves and distributor-isolating devices. The distributor valves contained in this document are of graduable release type. Direct release types are not included. Functionally they are regarded as not containing relay valves of any type, even if the relay valves are physically an integral part of the distributor valves. This document applies to both distributor-isolating devices mounted separate from the distributor valve and distributor-isolating devices integral with the distributor valve. This document specifies the requirements for the design, testing and quality assurance of distributor valves and distributor-isolating devices. The distributor valve and distributor-isolating device are intended to be part of a brake system mounted in a vehicle with maximum length of 31 m and maximum brake pipe volume of 25 l taking into consideration brake pipe inner diameters between 25 mm and 32 mm.
EN 15355:2019+A1:2023 (CEN) specifies requirements for distributor valves and distributor‑isolating devices used in railway braking systems. The standard covers graduable‑release distributor valves (direct‑release types are excluded) and applies whether the isolating device is integral or separate. It defines requirements for design, type testing and quality assurance for components intended for vehicles up to 31 m length and brake‑pipe volumes up to 25 L (considering brake‑pipe inner diameters 25–32 mm). This edition supersedes EN 15355:2019 and includes Amendment A1 (approved Dec 2022 / published May 2023).
The standard addresses functional, environmental and safety aspects relevant to distributor valves and isolating devices, including:
EN 15355:2019+A1:2023 is essential for stakeholders involved in railway braking components and systems, including:
Упомянутые в описании и другие стандарты EN
Keywords: EN 15355:2019+A1:2023, distributor valves, distributor‑isolating devices, railway braking standards, brake system components, CEN.
Normative and referenced documents include (but are not limited to): EN 14198, EN 14478, EN 15611, EN 45545‑2, EN 61373, and ISO 8573‑1 - all relevant for brake systems, environmental testing and compressed air quality.