The MC9-SEAL CHAMBER 1ST stage is environmentally sealed, protecting it against icing in cold water and against contamination from particulate matter in silty conditions.
A true featherweight second stage, the Compact is built from lightweight techno-polymers to eliminate jaw fatigue. Easy to pack and easy to dive, the Compact includes dive/pre-dive Venturi switch for managing freeflow and maximizing performance at depth.
1st stage MC9-SC
Hyper-balanced Diaphragm 1st stage with highly technological content that places it at the top of the Cressi range.
Very light body covered by a protective elastomer shell.
Cylinder sheathed in an antifriction and anticorrosion material that guarantees perfect sliding of the piston and long maintenance intervals.
The nozzle, made from 316 stainless steel, can be easily replaced, thus ensuring perfect air-tightness, even after many years of use.
Advanced research on the passage of internal air and aspecial assistance chamber have enabled the drop of pressure upon inhalation to be kept to a minimum, thus guaranteeing high performance in any situation.
Hyper-balancing allows for an increase of the intermediate pressure at maximum depths and lowering of the pressure in the tank, offering higher performance during the delicate ascent phase and at maximum depths.
DIN 200/300 bar fitting in stainless steel which prevents deformation of the thread in the event that the regulator suffers any falls.
MC9 SC diaphragm 1st stage – Technical Features
- Working pressure (INT connection): 0-232 bar
- Working pressure (DIN connection): 0-300 bar
- Calibration pressure: 10 bar
- Calibration adjustment range: +/- 0.5 bar
- Air supply: 4500 l/min (*)
- High pressure seats (HP) 2
- Low pressure seats (LP) 4
- Weight with INT connection: 650 g
- Wight with DIN connection: 510 g
(*)values measured at LP seat outlet with second stage connected and 150 bar pressure in the cylinders.