Scubatec FX3 Second Stage Internal Tube
The Internal Tube (or valve body) is the central mechanical component housed inside the Scubatec FX3 second stage casing. It represents the main conduit through which air flows from the hose to the mouthpiece.
Key features:
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Compatibility: Designed exclusively for the Scubatec FX3 balanced second stage body.
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Material: Made of high-precision machined marine brass with chemical nickel plating or chrome plating to prevent oxidation.
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Function: Internally houses the valve mechanism, spring, and delivery piston. It also serves as a support for the LP hose connection and the inspiratory effort adjustment knob.
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Sealing Seats: Features precision grooves for O-rings that ensure a watertight seal between the pneumatic circuit and the inside of the technopolymer casing.
Technical Note: During regulator servicing, this component must be thoroughly cleaned of any limescale deposits in the O-ring seats and on the threading, to ensure perfect system sealing and smooth adjustment.
