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Cressi First Stage MC9 - SC View larger

Cressi First Stage MC9 - SC

Cressi First Stage MC9 - SC

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110,50 €

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Cressi First Stage MC9 - SC

1st stage to overbalanced membrane MC9, the most modern but, at the same time, of simple maintenance and very robust and trustworthy.

The thicknesses of the walls of the body have been optimized to reduce to the minimum its weight (380 g). A case of semiflexible elastomer protects the 1st stage of blows and erosions.

The hypercompensation of the mechanism guarantees a slight increase of the intermediate pressure as it gets down the pressure of the bottle. The regulator supplies therefore its maximum level of services in the final phase of the dip, undoubtedly the most critical.

An advanced study of the traffic of the air and a chamber of exclusive distribution that canalizes the air volume directly to the exits LP  has allowed to reduce to minimal levels the fall of pressure in forced breathings (0,5 bar), guaranteeing a use with high services in any situation.

Valve of polyurethane of high mechanical resistance, to the oils and to the hiperoxic mixtures.

Specially effective filter with form of hat inserted without need of circlip.

1 exit HP and 3 LP.

300 are supplied in version INT (stirrup) and DIN bar. The toe of the coil of the version DIN has been realized in stainless steel instead of brass to guarantee a major resistance in case of falls or blows.

Technical characteristics:

  • High Pressure  outputs(HP) 1 - 7/16 "
  • Low Pressure outputs (LP) 3 - 3/8 "
  • System / compensation: overbalanced membrane
  • Filter type hat without circlip
  • Gyratory turret: no
  • Kit anti-freezing: no
  • Flow of supplied air 2800 l/min (*)
  • Intermediate pressure 9-10 bar
  • Fallen intermediate pressure (150 bar) 0,5-0,8 bar
  • Exterior regulation LP: yes (key Allen)
  • Weight: Int. 525 g / DIN 375 g

(*) Measurements effected in an LP output with the second connected stage and a pressure of 150 bar in the bottle.


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Cressi First Stage MC9 - SC

Cressi First Stage MC9 - SC

Cressi First Stage MC9 - SC

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