Abstract

This document specifies the technical requirements and the necessary tests of Excess Flow Device (EFD) for use with respiratory protective devices (RPD), up to 300 bar operating pressure. Devices that only close the flow in the event of a valve break-off do not fall within the scope of this document. NOTE Throughout the breathing apparatus market exists a variety of cylinder valves that can have different ways of connecting to an EFD. The interchangeability of the EFD is only possible in the case of verified combinations of cylinder valve and EFD. The use of unverified combinations is not considered safe.

Begin

2024-10-15

WI

00079188

Planned document number

DIN EN 144-4

Project number

02703452

Responsible national committee

NA 027-02-04 AA - Occupational respiratory protective devices  

Responsible european committee

CEN/TC 79/WG 6 - Supplied breathable gas Respiratory Protective Devices (RPD)