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The second pressure reduction stages of Scubatech / Tecline demand regulators are
based on a standard relief pressure reducing system. They are equipped with a
Venturi nozzle with a setpoint adjusted by a diver that allows delivery of maximum
flow of breathing gases. Using an adjustable deflector that directs appropriately the
breathing gas flow in combination with the Venturi nozzle substantially reduces the
breathing resistance.
In addition to adjustment of the Venturi Effect, the second pressure reduction stages
of Scubatech / Tecline demand regulators (only models: TEC1, TEC1 OCTO, TEC1
O2, TEC2, TEC2 OCTO and TEC2 O2 are equipped with a breathing resistance
adjustment knob located on the opposite side of the interstage hose of the diving
regulator's box. When the knob is set in a closed position, taking a breath requires
more effort and the diving regulator is less sensitive to sudden changes of pressure.
Breathing is easier when the knob is twisted off, as it requires less effort to take a
breath. Adjustment is smooth and you can set the knob in the position that suits you
best. When storing a diving regulator equipped with a breathing resistance
adjustment knob, the knob should be set in an open position.
Figure 2. The second stages of pressure reduction of demand regulators
Interstage hose is a medium pressure hose of operating pressure 17 bar. Hose
connections of the demand regulators are made of high quality materials.
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