Sundstrom SR 507 Installation guide

SR507 supplied air regulator Copyright © 2013 by The S.E.A. Group 1

SR507 supplied air regulator Copyright © 2013 by The S.E.A. Group 2
Companion module:
Sundström SR507 supplied air regulator — HOW
TO…
Related material:
Sundström air hoods
Sundström SR99 supplied air filter

SR507 supplied air regulator Copyright © 2013 by The S.E.A. Group 3
About your SR507 supplied-air regulator:
What is it?
A supplied-air regulator is the intermediate
connection between a continuous-flow air
supply and a face-piece or headpiece, such as a
respirator or hood.
How does it work?
Clean air from a remote source (such as a
compressor or pump) is fed into the regulator,
which is worn on the user’s waist. After moving
through the regulator, the air then continues
into a face piece or head piece, such as a mask,
hood or helmet, allowing the user to breathe the
continuous flow of clean air. The regulator is
fitted with a control valve that allows the user to
adjust the air flow to the mask or hood.
In addition, the regulator is fitted with an extra
outlet for a spray gun or other air-driven tool.
A warning whistle is also fitted to the regulator,
letting the user know if the air supply drops
below a safe level.
Breathing air hose
The supply hose must be certified for breathing
air. The most important qualities are:
•Odourless
•Kink and tangle proof
•Passing pull tests and pressure tests
•Fitted with connectors that cannot be
connected to non-breathing air

SR507 supplied air regulator Copyright © 2013 by The S.E.A. Group 4
IMPORTANT: about the quality of supplied air
for breathing:
•The intake air at the source (compressor
etc.) must be free of contaminants, or at
least kept to a minimum and never
exceed hygienic limit levels
•Any mineral oil content must be kept
below the smell threshold level (about
0.3 mg/m3)
•The air must not be so cold as to cause
internal freezing of the equipment
If there are any doubts about any of the
points above, a supplied-air filter should be
used, such as the Sundström SR99 airline
filter
How can the SR307 be used?
The hose adapter on the SR507 supplied-air
regulator means that supplied air can be
connected to all Sundström headpieces that
have a breathing hose that normally fits the
SR500 or SR700 PAPRs. This includes hard and
soft hoods, protective hoods, helmet and visor
with or without welding cassette, as well as the
SR200 full face mask.
The hose adapter
The adapter nipple fits into the regulator like a
regular supplied-air hose. Once fitted, any of
Sundström’s PAPR headpiece can be connected
through the bayonet coupling.
When should the SR507 regulator NOT be used?
•If there is not enough oxygen for human
breathing in the ambient atmosphere
•If the contaminant is unknown
•If the contaminant is Immediately
Dangerous to Life and Health (IDLH)
•If the ambient atmosphere is oxygen-
enriched or pure oxygen
•If breathing becomes difficult
•If you can smell or taste any
contaminant
•If you feel dizzy or nauseous, or suffer
any discomfort
•If the warning whistle on the regulator
sounds

SR507 supplied air regulator Copyright © 2013 by The S.E.A. Group 5
Main features
The SR507 regulator is made for the greatest
possible simplicity and reliability.
•Only one control knob. Large and easy to
turn, even when wearing thick gloves
•Control valve can be adjusted from 175
litres/minute to 260 litres/minute. The
air flow cannot be shut off
•Secure spring connectors. Two-way
unlocking to prevent accidental
disconnection
•In-built extra air outlet for spray gun or
other air-driven tool
•Warning whistle sounds if air supply
drops below 175 litres/minute
•Wide, rugged waist belt. Easy to fit and
adjust
Before using the regulator:
•Make sure the regulator and all
connectors are clean and intact
•Make sure all hoses are securely
connected to the regulator
•Make sure the quality of the breathing
air is adequate
•Make sure all hoses are rated for
breathing-quality air
•Make sure you are familiar with the
equipment and know how to use it
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