DIN477 Connection
(EU standard CO
2
cylinders with fitted gas control valve)
Instructions for Use
CO
2
is supplied in a compressed gas cylinder that is pressurised to a high pressure of
approx. 60 bar (900psi). In order to use this gas in an aquarium system the flow of gas has
to be reduced to more manageable levels. The adjustable V
2
Pressure Regulator
reduces the flow of CO
2
from the cylinder and allows the accurate adjustment and dosage
of CO
2
into the aquarium.
1. Ensure that the V
2
Pressure Regulator is compatible with your chosen CO
2
cylinder.
2. Before connecting the V
2
Pressure Regulator to the CO
2
cylinder ensure that the
pressure adjustment knob (see Photo 1 above) on the pressure regulator is rotated
clockwise to the fully closed position.
3. Place your CO
2
cylinder in a stable position on a level surface and connect the regulator
securely to the CO
2
cylinder by turning the connecting lock nut (see Photo 1 above)
clockwise until it is fully hand tightened. Then, using a 28mm spanner or similar tool,
secure the connection. Caution: For safety, it is good practice when attaching a
regulator to any compressed gas cylinder to point the regulator dial away from you.
4. The V
2
Pressure Regulator has an outlet hosetail designed for standard 6mm (
1
/
4
”)
flexible tubing with a hosetail locking nut for added safety (see Photo 1 above).
5. Unscrew the hosetail locking nut (see Photo 2) and then thread one end of your chosen
flexible tubing through the hole in the end of the locking nut, and attach this same end to
the outlet hosetail (see Photo 3).
Pressure RegulatorPressure RegulatorVV
22
For Aquarium Applications
Tools required for installation
28mm spanner or similar tool
Parts required for installation
CO
2
cylinder and 6mm (
1
/
4
”) flexible hosing.
Pressure dial
Photo 1
CO
2
cylinder
connecting
lock nut
Pressure
adjustment
knob
Hosetail
locking nut
Outlet hosetail
Photo 2
Photo 3
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