User Instructions
PSS
®
is a registered trade mark of Dräger
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2220
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2219
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2221
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2225
3356260 (A4-D-P)
Quick Connect Cylinder Coupling
Self contained breathing apparatus
1 Approvals
The Dräger quick connect cylinder coupling is approved and certied by NIOSH, and by
SEI and meets the requirements of NFPA 1981:2007.
Refer to the User Instructions for the associated self contained breathing apparatus for
full details of the Approvals.
2 For your safety
2.1 General safety statements
● Strictly follow this User Instruction and the User Instruction supplied with the
associated breathing apparatus.
● Use of this apparatus requires wearer training, knowledge, observance of these
User Instructions, and compliance with National Regulations, Laws and Standards,
governing the use of respiratory apparatus in the country of use.
● Use the apparatus only for the purpose specied in this User Instruction, or as
conrmed in writing by Dräger.
● Only trained and competent personnel should carry out the charging of the
compressed air cylinders.
● Use only original Dräger Spare Parts for service and maintenance.
● Notify Dräger in the event of component fault or failure.
2.2 Denitionsofalerticons
Alert icons are used in this document to provide and highlight text that requires a greater
awareness by the user. A denition of the meaning of each icon is as follows:
WARNING
Indicates a potentially hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, could result in
physical injury or damage to the product or environment. It may also be used
to alert against unsafe practices.
NOTICE
Indicates additional information on how to use the product.
3 Warranty and liability statement
Terms and Conditions of warranty, for the Dräger Quick Connect Coupling can be found
in the original Dräger Invoice Document, or can be obtained from Dräger on request.
Responsibility for reliable function of the unit transfers to the owner or operator when
assembled, serviced, or repaired by untrained personnel, (not employed or authorised
by Dräger) or when used in a manner not conforming to its intended use.
The liability for the proper function of the compressed air cylinders is irrevocably
transferred to the owner or operator to the extent that the compressed air cylinders are
serviced or repaired by personnel not employed or authorised by Dräger Service or if
the cylinders are used in a manner not conforming to their intended use.
Dräger Safety cannot be held responsible for damage caused by non-compliance with
the recommendations given above. The warranty and liability provisions of the terms of
sale and delivery of Dräger Safety are likewise not modied by the recommendations
given above.
4 Description and intended use
The Dräger Quick Connect Coupling is designed to replace the conventional threaded
connection between the rst stage pressure regulator of the Dräger PSS
®
Series self
contained breathing apparatus and the associated cylinder valve.
The unit functions as a single action ‘press to connect’ feature that secures the rst
stage pressure regulator to the cylinder valve. This action signicantly reduces the
cylinder change-over time.
The Dräger Quick Connect Coupling is available in a choice of two pressure variants,
i.e. 2216 psig or 4500 psig. Each unit comprises the following elements:
1off Latching mechanism with handgrip (part of rst stage pressure regulator).
1off Male adaptor (separate screw-on adaptor).
The Dräger PSS Series with Dräger Quick Connect Coupling is supplied with the
latching mechanism with handgrip already tted to the rst stage pressure regulator of
the breathing apparatus. The male adaptor is supplied with the breathing apparatus for
tting by the user to the associated valve assembly.
This User Instruction describes the assembly of the male adaptor to the cylinder valve
and the subsequent use of the Dräger Quick Connect Coupling.
4.1 Technical data – High pressure connections
The following self contained breathing apparatus high pressure Quick Connect
Couplings are available for associated and suitably modied valves of compressed air
cylinder assemblies.
● 2216 psig
● 4500 psig
5 Use
5.1 Fitting the male adaptor to the valve
Tools Required
Torque Handle c/w 24 mm spanner 3356172
NOTICE
Adjust the torque handle to a setting of 14-15 lbf ft (18-20 Nm)
Refer to Figure 1.
1. Select a fully charged cylinder and inspect and check that the external thread of the
cylinder valve port is clean and not damaged. Ensure that the bore of the valve port
is clean and free from dirt and contamination.
2. Inspect and check that the internal thread and internal bull nose of the male
adaptor (supplied) is clean and not damaged. Ensure that the back-up ring and
O-ring are in place in the small bore and that the bore is clean and free from dirt
and contamination.
3. Screw the male adaptor to the external thread of the cylinder valve port. Securely
hold the cylinder assembly and then using the torque handle, c/w spanner, tighten
the male adaptor to the valve to a torque of 14-15 lbf ft (18-20 Nm).
4. Assembly complete.
5.2 Fitting the cylinder to the breathing apparatus
Refer to Figure 2.
1. Lay the carrying frame of the breathing apparatus horizontal and fully extend the cylinder
support strap. Insert the cylinder (valve end rst) through the loop of the support strap,
from the top end of the backplate, and then slide the cylinder aligning the valve with the
latching mechanism with handgrip of the rst stage pressure regulator.
Refer to Figure 3.
2. Pivot the pressure regulator to align the valve to the bore of the latching
mechanism.
Refer to Figure 4.
3. Push the valve port (male adaptor) into the bore of the latching mechanism until
a positive ‘click’ is heard. The handgrip will rapidly rotate approx. 45° counter
clockwise indicating that the valve is connected to the pressure regulator.
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