DIN Standards Committee Optics and Precision Mechanics
Respiratory protective devices - Gas cylinder valves - Part 4: Excess flow valves
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
2024-09-01
WI
00079188
Planned document number
00079188
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)
