What is BS EN 15355 about?
BS EN 15355 is a European standard on railway vehicles discussing the braking distributor valves and distributor-isolating devices.
BS EN 15355 specifies the requirements for the design, testing, and quality assurance of the distributor valves and distributor-isolating devices. The distributor valves contained are of graduable release type.
BS EN 15355 applies to both distributor-isolating devices mounted separately from the distributor valve and distributor-isolating devices integral with the distributor valve.
The distributor valve and distributor-isolating device are intended to be part of a brake system mounted in a vehicle with a 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.
Who is BS EN 15355 for?
BS EN 15355 on the braking system of railway vehicles is useful for:
- Railway engineers and operators
- Mechanical engineers
- Manufacturers of railway rolling stocks
Why should you use BS EN 15355?
A distributor valve is an apparatus to control a pneumatic output pressure as an inverse function of the variation of the brake pipe pressure (input pressure).
BS EN 15355 provides the general requirements on function, design, and manufacturing of distributor valve and distributor-isolating devices.
Functional requirements and type tests are described in BS EN 15355 in order to assess the performance of the distributor valve and distributor isolating devices.
BS EN 15355 contains the actual requirements of an “in-service trial” to assess a distributor valve when fitted in a system.
The designation, identification, and marking of the distributor valve and distributor isolating devices are provided in BS EN 15355.
Furthermore, BS EN 15355 could help you in the manufacturing of the distributor valve and distributor-isolating devices that ensures senses drop and rise in brake pipe pressure for brake application and release respectively giving security & reliability, even at low temperature, and high sensitivity.
What’s changed since the last update?
BS EN 15355:2019 supersedes EN 15355:2008+A1:2010. BS EN 15355:2019 includes some technical changes with respect to EN 15355:2008+A1:2010.
These include:
- Requirements on function, design, and manufacturing have been revised
- Requirements on type tests have been revised
- Requirements on in-service assessment have been revised
- Requirements on designation have been revised
- Requirements on identification and marking have been revised.