Abstract

This document specifies the technical requirements and the necessary tests of excess flow valves for use with SCBAs up to 300 bar operating pressure according to EN 137 without and with a second medium pressure connection according to Annex A. Exhaust devices that interact mechanically with the valve or lower-spindle of the valve and only close the flow in the event of a valve break-off do not fall within the scope of this document. Requirements of EN 137 apply without restrictions.

Begin

2024-10-15

WI

00079188

Planned document number

DIN EN 00079188

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)