Cressi España Professional diving equipment SINCE 1946
Made in Italy
1ª Etapa AC2

Membrane 1st stage overbalanced in T, very modern but, at the same time, of simple maintenance and very robust and reliable.

The thickness of the body walls has been optimized to minimize its size and weight (380 g). A semi-flexible PVT elastomer cover protects the 1st stage from impacts and erosions.

The T-configuration allows greater integration of the first stage in the profile of the tank valve and, therefore, greater freedom of movement for the diver’s head. The mechanism works transversely to the air inlet and the possible filtration of particles coming from the tank that may exceed the filter does not affect directly the poppet valve.

HP seat is made of AISI316 stainless steel. In addition to the possibility of replacement in case of deterioration when performing maintenance, the composition of the seat, much harder than the traditional brass of irreplaceable seats, prolongs its useful life since it better resists the deforming action of the metallic particles that can be introduced coming from the tank.

Polyurethane poppet valve with high mechanical resistance, to oils and to hyperoxic mixtures.

Perfect axial movement of the mechanism thanks to the self-lubricating valve guide and the main spring with technology that guarantees a perfectly stable work at any time during the breathing cycle.

The hypercompensation of the mechanism guarantees a slight increase in the middle pressure as the pressure in the cylinder decreases. The regulator therefore provides its highest level of performance in the final phase of the dive, undoubtedly the most critical.

An advanced study of the internal air circulation and an exclusive distribution chamber that channels the air volume directly to the LP outlets have allowed the pressure drop in forced breaths to be reduced to minimum levels (0.5 bar), guaranteeing its use with high performance in any situation.

The T10 optionally has an SC (Sealed Chamber) insulation and antifreeze kit that completely isolates the membrane and the spring from contact with water, making it ideal for operating in extremely low temperature conditions and with very dirty water.

Conical filter with a large filtering capacity. Large effective filtration surface since the base and the entire side of the cylinder act with a development area of ​​280 mm2. Inserted without the need of a circlip since it is blocked by the connection nut to the tank valve.

2 HP and 4 LP outputs

Supplied in INT (Yoke) and DIN 300 bar versions. The thread of the DIN version has been made of stainless steel instead of brass to guarantee greater resistance in the event of falls or impacts.


Technical features

High Pressure Outlets (HP) 2 - 7/16” Low Pressure Outlets (LP) 4 - 3/8”
System/compensation: overbalanced membrane 

Hat filter whithout circlip
Rotating turret: no
Air flow sipplied 4000 l/min (*)
Intermediate pressure 9-10 bar Intermediate pressure drop (150 bar) 0,5-1 bar
LP external regulation: yes (Allen key)
Weight: Int. 615 g / DIN 480 g
Supply pressure (DIN connection) 0-300 bar
Set pressure 9,2-9,6 bar
Scale of regulation of the tare +/- 0’5 bar  

(*) Measurements carried out on an LP outlet with the second stage connected and a pressure of 150 bar in the tank.


Hyper-compensated membrane mechanism in line with numerous elements optimized to offer maximum reliability, robustness and low maintenance cost. Completely hermetic base that isolates the mobile mechanism from the outside environment.

 

The hypercompensation of the mechanism guarantees a slight increase in the middle pressure as the pressure in the cylinder decreases. The regulator therefore provides its highest level of performance in the final phase of the dive, undoubtedly the most critical.

 

 

The thickness of the body walls has been optimized to minimize its size and weight (380 g). A semi-flexible elastomer cover protects the 1st stage from impacts and erosions.

 

 

Polyurethane poppet valve with high mechanical resistance, to oils and to hyperoxic mixtures.

 

HP seat is made of AISI316 stainless steel. In addition to the possibility of replacement in case of deterioration when performing maintenance, the composition of the seat, much harder than the traditional brass of irreplaceable seats, prolongs its useful life since it better resists the deforming action of the metallic particles that can be introduced coming from the tank.

 

An advanced study of the internal air circulation and an exclusive distribution chamber that channels the air volume directly to the LP outlets have allowed the pressure drop in forced breaths to be reduced to minimum levels (0.5 bar), guaranteeing its use with high performance in any situation.

 

2 HP and 4 LP outputs.

 

Conical filter with a large filtering capacity. Large effective filtration surface since the base and the entire side of the cylinder act with a development area of ​​280 mm2. Inserted without the need of a circlip since it is blocked by the connection nut to the tank valve.

 

Optional SC (Sealed Chamber) insulation and antifreeze kit. Completely isolates the membrane and the spring from contact with water, making it ideal for operating in extremely low temperature conditions and with very dirty water.

NOTE: The insulation kit does not prevent the entry of moisture in the 1st stage from the tank and which is accessed through the filter or possible water inlets due to mismanagement of the 2nd stage during sweetening or when using all the air from the tank.

 

Maximum lightness of the 1st stage, only 590 g in the International version.


 

Supplied in INT (Yoke) and DIN 300 bar versions. The thread of the DIN version has been made of stainless steel instead of brass to guarantee greater resistance in the event of falls or blows.

 

 

Reference
EAN
Description
Recommended price
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