User manual

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3.6.1 PRIMARY BREATHING VALVE COMPONENTS
(SAFETY PRESSURE)
1 Connection nipple 6 Locking ring
2 Check valve, inhalation channel 7 Protective ring
3 Bayonet coupling 8 Vent button
4 Diaphragm housing 9 Knob for safety pressure (only versions with safety pressure)
5 O-ring (not used with mouthpieces) 10 Locknut
• Interspiro recommends the use of a Divator breathing valve with safety pressure when diving in
contaminated water.
A Divator breathing valve is designed to maintain a safety pressure of an approximately 35 mm (1.5 inch)
water column in a full-face mask in atmospheric air. The safety pressure is activated automatically when
the diver takes his or her rst breath in the mask. The safety pressure reduces the risk of water leaking in
(or contaminated air leaking in at the surface), which is very important when diving in contaminated water.
Safety pressure in the mask is maintained regardless of the diver's air consumption.
If water enters the mask, it can simply be drained by pressing the vent button on the breathing valve. When
the mask is removed, the safety pressure knob on the breathing valve must be pressed in (closed) against
the valve housing.
DANGER! The Divator breathing valve with safety pressure must not be combined with a Divator mouthpiece
due to the risk for uncontrolled airow if the valve is dropped.
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