Pressure Reducer; Manifold - MSA alpha Series Operating Manual

MSA

2.1.1. Pressure Reducer

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Fig. 2 Pressure reducer
Single line connection
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2 Compressed air cylinder connection
3 Quick-Fill coupling (not for standard model)
4 Lead seal
The pressure reducer is mounted in the lower area of the back plate ( Fig. 2).
On the pressure reducer, there is a relief valve and the single line for connecting
the manifold. The pressure reducer reduces the cylinder pressure to
approx. 7 bar and the relief valve activates on non-permitted pressure rise to
prevent damage insuring the continued supply of breathable air.

2.1.2. Manifold

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2
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Fig. 3 Manifold
1 Pressure gauge
2 Lung governed demand valve coupling
3 Warning device (signal whistle)
4 Second connection
The manifold ( Fig. 3) is connected at the end of the single line. It consists of
the pressure gauge (1), the coupling for the lung governed demand valve (2) as
well as an acoustic warning device (3) (signal whistle). It triggers a continuous
warning signal when the cylinder pressure drops below 55±5 bar. The second
connection (4) connects a second lung governed demand valve (e.g. rescue kit).
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AirMaXX SL
DESCRIPTION
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