Dräger PSS Series User Manual

Plus and PSS Series - Lung Demand Valve
tm 1285.001 - August 2001
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7 Fault Location
7.1 Demand Valve
The high performance Plus and PSS Series Lung Demand Valves
incorporate a precision factory set Air Transfer Block Assembly containing
a pre-set and sealed balanced piston unit. These items have unlimited
service life.
The Dräger warranty and guarantee is void should any attempt be made
by customers to make adjustment to the balanced piston unit or the
associated Injector Pipe.
Following the fitting of a replacement balanced piston unit to an existing
Air Transfer Block, or the fitting of a replacement Air Transfer Block to an
existing balanced piston unit will require re-adjustment of the main lever
setting height.
The following Fault - Cause - Remedy chart outlines a list of possible
faults that may occur.

Dräger PSS Series Specifications

General

Type	Self-Contained Breathing Apparatus (SCBA)
Material	Stainless steel
Breathing Gas	Compressed air
Duration	Varies by cylinder capacity and breathing rate
Cylinder Material	Aluminum or composite
Communication	Integrated communication system (optional)
Operating pressure	Up to 300 bar (4350 psi)