166 EN MEDUVENT Standard
WM 67851 01/2021
16 Technical data
STP (Standard Temperature and Pressure): Volume/flow at 21 °C
and 1013 hPa
BTPS (Body Temperature and Pressure, saturated): Volume/flow at
current ambient pressure and 37 °C at 100 % saturated moist gas
Pressure drop [hPa] over the section of inspiratory and expiratory flow at different
flows [l/min] as per EN 794-3
Breathing circuits (2 m), additionally with FlowCheck sensor and elbow
Flow
[l/min]
Breathing circuit (reus-
able), 2 m WM 35850
Breathing circuit
(disposable), 2 m
WM 35860
Spontaneous breathing in the event
of energy failure, inspiratory (STP)
2.5 < 2.4 < 1.8
15 < 2.4 < 1.8
30 < 4.1 < 3.4
Spontaneous breathing in the event
of energy failure, expiratory (BTPS)
2.5 < 1.7 < 1.8
15 < 1.7 < 1.8
30 < 2.5 < 2.6
Normal operation, inspiratory (STP)
5 < 0.7 < 0.5
30 < 1.3 < 1.3
60 < 2.9 < 2.8
Normal operation, expiratory (BTPS)
5 < 0.9 < 0.9
30 < 2.8 < 2.4
60 < 4.8 < 4.6
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