POSEIDON Jetstream User manual
This manual contains preliminary servicing instructions for the Poseidon breathing regulators. It is
intended to serve as a guide for repairs and servicing carried out by Poseidon Diving Systems. The
instructions given in this manual are based on the assumption that special tools are used and are
based on our experience.The work should be done in the same order as shown in these instructions.
TYPE DESIGNATIONS:
In all correspondence concerning breathing regulators, indicate the type designation and serial
number. All products in this servicemanual that requires a CE-approval are of course CE-approved. CE
approval represents only a minimum level of product quality and manufacturing standards. At
Poseidon we put each new addition through rigorious testing procedures our selves. This is the only
proper method to ensure that your equipment will live up to our claims.
CLEANING:
If corrosion or salt deposits occurs, place all metal parts – concentrated Hempocid* or 15%
Hydrochloric acid for about 10 minutes. Then, rince the parts thoroughly and blow dry with air.
The synthetic parts in the second stage must not be treated with solvent. They shall be cleaned in
freshwater only.
*Hempocid = Acid Liquid Detergent Containing phosphoric acid (5 - 10%)
and bactericid for desinfectant cleaning.
FOLLOWING LUBRICATE IS USED:
Grease:
Gleitmo 594 Art no 8507
Siliconpasta Art no 2587
Oil:
Siliconoil Art no 3139
1.0:E1
FUNCTION
POSEIDON breathing regulator is a two-stage regulator where the first stage is a diaphragm-actuated
reducing valve, whith reduces the primary pressure (Cylinder pressure) to approx. 145 PSI. The reduced
pressure (the secondar’y pressure) then goes via the regulator hose to the second stage where the air
supply is automatically regulated to the convenience of the diver.
The first-stage always holds the adjusted pressure above the ambient pressure which is necessary to the
function of the breathing regulator. This is brought about, the outer springloaded diaphragm being in
contact with the ambient pressure. It automatically responds to this pressure acting it and thereby
regulates all changes in pressure.
During diving in cold water, i.e, temperatures lower than +6°C (+43°Farenheit ), the outer spring housing
of the first stage may be provided with an anti-freeze cap in order to prevent direct contact with the
water.This is necessary as the considerable cooling that takes place when the primary air expands in the
secondary chamber can otherwise cause ice to form and thereby prevent the springs and diaphragm
from functioning.
The second-stage functions in such a way that the underpressure created in the regulator housing
during each inhalation influences a diaphragm actuated valve system, which will supply the necessary
air as long as the inhalation phase lasts. The automatic pressure compensation takes place in the same
way as in the first stage, the outer diaphragm surface being in direct contact with ambient pressure, and
the pressure on the inside of the diaphragm must correspond to ambient pressure before the diaphragm
can return to its position. The diaphragm retums to its rest position and shuts off the air flowing in as
soon as the inhalation phase has been broken off and the air pressure in the regulator housing has
become equal to ambient pressure.
The second stage fias been provided with an ejector system for the purpose of keeping inhalation effort
to a minimum.
During the exhalation phase, the exhaled air goes out through the exhalation diaphragm on the
opposite side of the inhalation diaphragm into the ambient medium. The exhalation diaphragm closes
automatically when exhalation stops. Also, the exhalation diaphragm regulates the necessary pressure
compensation by closing when the ambient pressure is equal.The special construction of the exhalation
section of the regulator has been designed to obtain high capacity with low exhalation effort.
The second stage bas a built in purge button, for manual purging.
1.0:E2
JETSTREAM
1.0:E7
Poseidon Jetstream
BREATHING REGULATOR Art. No 2960
USA: Poseidon Odin
Primary pressure................................................................................Max. 4350 PSI / 300 bar
Secondary pressure ..........................................................................Max. 145 PSI 10 bar
Air flow .................................................................................................Approx. 1600 l/min
Inhalation resistance ........................................................................Max. 40 mm of water
Exhalation resistance .......................................................................Max. 20 mm of water
The above data apply when measuring at atmospheric pressure
FIRST STAGE VALVE Art. No 2962, 3580
Description...........................................................................................Diaphgram- actuated balanced with shear
venturi boost.
Connecting threads for primary pressure................................G5/8'' -max. 4350 PSI/ 300 bar accord.
SS 2600/K and DIN 477/5 or yoke connection
accord. SS 2603 and ANSI/CGA V1: 1987
Outlet connections:
One outlet marked R for second stage (max. airflow) .........UNF 3/8’’ -secondary pressure
Three outlets marked LP for drysuits,
buoyancy compensators, hookah suppply
safety second stage,etc...................................................................UNF 3/8’’-secondary pressure
One outlet marked S has restricted airflow and
therefore is intended only for dry-suit or stabjacket ...........Intended for first stage No 3580
UNF 3/8’’-secondary pressure
One outlet marked HP for pressure gauge..............................UNF 7/16’’- primary pressure
SECOND STAGE VALVE Art. No. 2961, 3546
Description...........................................................................................Upstream diaphragm actuated. servo assisted
with safety relief, fixed ejector system.
Purge button for clearing.
Sensivity switch for added control.
REGULATOR HOSE WITH INTEGRAL SAFETY VALVE
Length....................................................................................................28 inch / 70 cm
Release pressure ................................................................................Approx. 247 PSI / 17 bar
TIGHTENING TORQUE
Primary connection ..........................................................................20 - 22 Ibf.ft / 28 - 30 Nm
Valve cover ...........................................................................................20 - 22 Ibf.ft / 28 - 30 Nm
Connections marked R-LP-HP.......................................................6 Ibf.ft / 8 Nm
Balanced housing .............................................................................7 Ibf.ft / 10 Nm
ANTI-FREEZE PROTECTION
Type designation ...............................................................................Art. No 1286
Type ........................................................................................................Rubber cap
JETSTREAM
1.0:E8
Poseidon Jetstream
BREATHING REGULATOR Art. No 3960
Primary pressure................................................................................Max. 4350 PSI / 300 bar
Secondary pressure ..........................................................................Max. 145 PSI / 10 bar
Air flow ..................................................................................................Approx. 1600 l/min
Inhalation resistance ........................................................................Max. 40 mm of water
Exhalation resistance .......................................................................Max. 20 mm of water
The above data apply when measuring at atmosphere
FIRST STAGE VALVE Art. No 3790, 3790 10
Description...........................................................................................Diaphgram-actuated balanced with shear
venturi boost. Release pressure approx.
217-247 PSI / 1,5-1,7 MPa / 15-17 bar
Connecting threads for primary pressure................................G 5/8’’ -max 4350 PSI /30 MPa /300 bar
accord. SS 2600/K and DIN 477/5 or
yoke connection accord. SS 2603 and
ANSI/CGA V1: 1987
Outlet connections:
One outlet marked R for second stage
(max. airflow).......................................................................................UNF 3/8’’ - secondary pressure
Three outlets marked LP for Jetstream octopus,
drysuits, stadjacket............................................................................UNF 3/8’’ -secondary pressure
Two outlets marked HP for pressure gauge ............................UNF 7/16’’ -primary pressure
SECOND STAGE VALVE Art. No. 2961, 3546
Description...........................................................................................Upstream diaphragm actuated. servo assisted
with safety relief, fixed ejector system.
Purge button for clearing.
Sensivity switch for added control.
REGULATOR HOSE WITH INTEGRAL SAFETY VALVE Art. No 2943
Length....................................................................................................28 inch / 70 cm
Release pressure ................................................................................Approx. 247 PSI/17 bar
TIGHTENING TORQUE
Primary connection, valve cover..................................................22 Ibf.ft / 30 Nm / 3,0 kpm
Connections marked R-LP-HP.......................................................6 Ibf.ft / 8 Nm / 0,8 kpm
ANTI-FREEZE PROTECTION
Type designation ...............................................................................Art. No 1286
Type ........................................................................................................Rubber cap
JETSTREAM
1.0:E9
Poseidon Oceanair
BREATHING REGULATOR Art. No 2940
USA: Poseidon Thor
Primary pressure................................................................................Max. 4350 PSI / 300 bar
Secondary pressure ..........................................................................Max. 181 PSI / 12.5 bar
Air flow ..................................................................................................Approx. 1500 1/ min
Inhalation resistance ........................................................................Max. 40 mm of water
Exhalation resistance .......................................................................Max. 20 mm of water
The above data apply when measuring at atmospheric pressure
FIRST STAGE VALVE Art. No 3020
Description...........................................................................................Diaphgram-operated, compensated
Connection threads for primary pressure................................G 5/8’’ -max 4300 PSI / 300 bar accord.
SS 2600/K and DIN 477/4
Outlet connections:
Four outlets marked LP for second stage,
drysuits, hookah supply, safety second stage, etc .................UNF 3/8’’ -secondary pressure
One outlet marked HP for pressure gauge..............................UNF 7/16’’-primary pressure
SECOND STAGE VALVE Art. No. 2961, 3546
Description...........................................................................................Upstream diaphragm actuated. servo assisted
with safety relief, fixed ejector system.
Purge button for clearing.
Sensivity switch for added control.
REGULATOR HOSE WITH INTEGRAL SAFETY VALVE
Length.................................................................................................... 28 inch / 70 cm
Release pressure ................................................................................ Approx. 247 PSI/ 17 bar
TIGHTENING TORQUE
Primary connection ..........................................................................20-22 Ibfft 28 Nm
Valve cover ...........................................................................................20-22 Ibf.ft 28 Nm
Connections marked LP-HP...........................................................6 Ibf.ft / 8 Nm
ANTI-FREEZE PROTECTION
Type designation ...............................................................................Art. No 1286
Type ........................................................................................................Rubber cap
JETSTREAM
1.0:E11
SECOND STAGE
2710, 2941, 2961, 3546
Removal:
1. Disconnect the low pressure
hose from the second stage.
2. Remove the low pressure valve
from the housing (15) with a
screwdriver. Make sure the servo
valve needle is not bent. Be sure
to hold the low pressure valve
carefully, to avoid dropping it
(see figure).
3. Cut off the locking strap (17)
with cutting pliers. Remove the
mouth piece (16).
4. Unscrew the 4 screws (26) with
a 3.5 mm screwdriver.
5. Remove the cover (25) and the
diaphragm (24).
6. Remove the purge button (27).
IMPORTANT
The switch should not be
removed if it is undamaged.
Removal:
1. Pull out the diaphram cam (22).
2. Cut off the switch (18) with a
pair of cutting pliers close to
the locking washer (21).
Remove the switch.
3. Remove the o-ring (19).
JETSTREAM
1.0:E12
Removal:
1. Remove the servo valve (14).
2. Unscrew the stop screw (9) and
remove the valve tube (12).
Remove the o-rings (11) (13)
with an o-ring remover. Make
sure the sealing surfaces are not
damaged.
3. Remove the rubber plate (10).
4. Place the valve housing in the
tool. Unscrew the valve housing
(4) with a special spanner.
5. Remove the o-ring (7) with an
oring remover. Make sure the
sealing surfaces are not
damaged.
6. Remove the valve insert.
7. Remove the o-rings (5) (3) with
an o-ring remover. Make sure
the sealing surfaces are not
damaged.
Sealing surfaces
JETSTREAM
1.0:E13
BEFORE INSTALLING CHECK
THE FOLLOWING:
1. Diaphragm (24). Check that the
sealing surface of the diaphragm is
even. Also check that there are no
holes in the diaphragm and that the
diaphragm washer is properly fixed in
position.
2. The mouth-piece (16). Make sure
there are no cracks.
3. The purge button (27). Make sure
there are no cracks. Check to make sure
the spring is undamaged.
4. Servo valve (14). Check to make
sure that the valve bar is not bent.
5. The switch: Put the switch into - and
+position. It should be moved rather
slowly, control the position of the
diaphragm and that it is properly
tighten.
When servicing the regulator the following parts should be
replaced: See chapter Servicekit.
1. All o-rings. Also the ones in the low pressure hose.
CLEANING:
If corrosion or salt deposits occurs, place all metal parts –
concentrated Hempocid* or 15% Hydrochloric acid for about 10
minutes.Then, rince the parts thoroughly and blow dry with air.
The synthetic parts in the second stage must not be treated with
solvent.They shall be cleaned in freshwater only.
*Hempocid = Acid Liquid Detergent Containing phosphoric
acid (5 - 10%) and bactericid for desinfectant cleaning.
JETSTREAM
1.0:E14
SECOND STAGE
Assembly:
1. Mount the o-rings (5,3) on the
valve housing (4). Use the tools.
See diagram.
2. Install the valve insert (6) in the
valve housing (4).
3. Place the o-ring (7) in the
groove of the valve insert (6).
Lubricate the thread. Install the
valve housing nut (8).
4. Place the valve housing in the
handle.Tighten with a tool.
See diagram.
3
4
JETSTREAM
1.0:E15
5. Install the o-rings (11,13) on the
valve tube (12). Grease the threads
and the o-rings.
6. Screw in the valve tube (12) until
about 2 mm space remains as
illustrated.
7. Install the rubber plate (10). Screw in
the set screw (9). Do not tighten up.
8. Screw the servo valve (14 ) on to
valve tube (12). Tighten up. Be
careful not to bend the valve needle.
9. Test the low pressure valve for
leakage. See chapter: Final
adjustment.
SWITCH
1. Fit in o-ring (19) and lubricate it.
2. Fit in the switch with the narrow
part against the - minus sign on the
second stage valve. See diagram.
3. Install the locking washer (21) on
the switch (18). Press it on a drift.
Tighten the locking washer so that
there is sufficient resistance when
setting the switch.
4. Fix the diaphragm cam (22) upon the
switch (18). Set switch at - (minus),
press the diaphragm cam into
correct position per the diagram.
The distance from the top of the
diaphragm cam to the housing should
be 2 mm, concerns diaphragm of
silicone rubber, see diagram. Carefully
push diaphragm cam into the right
position. Note the cam should be
pushed slowly on to the switch so that
the switch is not moved.
JETSTREAM
1.0:E16
Assembly:
1. Fit the purge button in the cover (25) for
the second stage. Make sure that the
spring is undamaged.
2. Position the diaphragm (24) with the
diaphragm washer facing down wards
and the hole positioned as illustrated.
3. Position the cover (25) for the second
stage according to the adjacent
illustration. Lubricate the screw and
tighten (27) with a screwdriver.
4. Install the mouth piece (16) and the
locking strap (17). Tighten up and cut
off with plastic band pliers.
5. Checking the second stage for leaks:
Place the mouth piece against your lips
and cover the low pressure hose
connection with your thumb and inhale
lightly. This will create a partial
vacuum inside the second stage. If the
pressure does not equalize in 5 second
stage leaks. See chapter fault detecting.
LOW PRESSURE HOSE
WITH SAFETY VALVE
Check the hose for cracks or other defects.
Check the sealing surfaces and threads.
Install the o-ring (1) and lubricate it.
Install the hose in the outlet of the first
stage valve marked R (important for the
regulators performance). Tighten with 13
mm open- end wrench. Oceanair in an
optional outlet marked LP.
JETSTREAM
1.0:E18
FIRST STAGE VALVE
2801, 2808, 2962, 3257,
3580, 3585
Secondary side:
1. Disconnect the low pressure
hose from the first stage valve
using a 13 mm open end
wrench.
2. Remove the o-ring from the low
pressure hose. Make sure the
sealing surfaces are not
damaged.
Removal:
Place the first stage valve with the
secondary side facing upwards in
the fixture.
1. Remove the pressure adjusting
screw (1) with a 6 mm Allen
wrench and remove the spring
(2) and (3).
2. Remove the cover (4) using a 27
mm crowsfoot and the upper
diaphragm centre (5).
3. Remove the diaphragm. (6).
Make sure the sealing surface is
not damaged. Remove the lower
diaphragm centre (7) and the
valve needle (8).
Sealing surfaces
JETSTREAM
1.0:E19
BALANCE HOUSING
Removal:
Place the first-stage valve with the
balanced housing facing upwards.
1. Steady the balance housing
with a special wrench. Then
remove the blind screw (25)
with a 5 mm Allen wrench.
Remove the o-ring(24) with an
o-ring remover. Remove the
balance housing (21) with the
special wrench.
2. Remove the spring (23) and the
spring guidance (22).
3. Remove the valve piston (16)
and the spacing sleeve (17).
Remove the o-ring (18) with an
o-ring remover. Remove the
washer (19) and the o-ring (20).
Use an o-ring remover for this
also. Make sure the sealing
surfaces are not damaged.
Sealing surfaces
JETSTREAM
1.0:E20
FIRST STAGE
2962, 3257, 3580, 3585
Removal:
1. Remove the protective cap (26).
2. Remove the locking screw (27)
with a 6 mm Allen wrench.
Remove the o-ring (28) and the
cupfilter (30).
3. Place the first stage in the
fixture. Remove the connecting
(3 1) with a 6 mm Allen wrench.
4. Remove the wheel (33) and the
oring (32) with an o-ring
remover. Make sure the sealing
surfaces are not damaged.
Sealing surfaces
JETSTREAM
1.0:E21
FIRST STAGE
2801
Removal:
1. Remove the protective cap (3 1).
2. Remove the locking screw (27)
with an 8.5 mm screwdriver.
Remove the cup filter (28).
3. Place the first stage in the
fixture. Remove the high
pressure valve housing (33) with
a 6 mm Allen wrench.
4. Remove the wheel (34).
5. Remove the o-rings (30,32) with
an o-ring remover. Make sure
the sealing surfaces are not
damaged.
Sealing surfaces
JETSTREAM
1.0:E22
FIRST STAGE
2801, 3257 10, 3585 10
Removal:
1. Remove the protective cap (24).
Unscrew the knob (25).
2. Remove the locking screw (27)
with an 8.5 mm screwdriver.
Remove the cup filter (28).
3. Remove the connection (29)
with a 6 mm Allen wrench.
4. New model, remove the locking
screw (34) with an 6 mm Allen
wrench. Remove the cup filter
(35) and the o-ring (36). Remove
the connection (37) with an 6
mm Allen wrench.
5. Remove the o-ring (30) with an
o-ring remover. Make sure the
sealing surface is not damaged.
Sealing surfaces
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