The ac25 is the third generation of cressi’s ip adjustable balanced piston first stage. It features 2 high-pressure ports and 5 lowpressure ports. 4 low-pressure ports are located on a rotating turret that ensures that regulator and instrument connections are always in the right position. The fifth port is a co-axial hi-flow port and is located at the top of the turret. The rotating turret swivels on 360° axis and features 5 low-pressure ports designed to allow the use of more connections without interfering between them. It features the external direct ip adjustment system that can be set using a simple allen key. The hi-flow conic shape filter is the same for int and din. The spring and the spring bush are coated preventing rust. Its technologically advanced design delivers consistent intermediate pressure and high performance even with low tank pressures. The ac25m it features a matte finish, in gun metal-coated brass. It is combined with the master cromo, the pneumatic balanced 2nd stage that features an elliptical shape and a lateral knob for venturi adjustment.

TECHNICAL SPECS

3rd generation cressi’s ip adjustable balanced piston fi rst stage
2x 7/16” hp ports unf
5x 3/8” lp ports unf, 1 port on turret top
Operating pressure:
Int version: 230 bar | 3,336 psi
Din version: 300 bar | 4,351 psi
Calibration pressure: 9.8÷10 bar | 142÷146 psi
360° revolving head
Realized in brass-coated, with a matte finish
The sintered conical filter protects from any impurity
Technical features 2nd stage
Pneumatically balanced
Adjustable venturi
Adjustable inhalation effort
Patented elliptical diaphragm
Patented low-friction lever
Air delivery system without injector
Adjuster knob coated with pvd process with dual or
Internal heat exchanger
Cap opening with cam-lock
Noise-absorbing technopolymer body
Removable technopolymer deflector
Removable mechanics
Weight without hose: 207 gr
Combination performance
Average breathing effort 0.78 j/l
Jacketed hose extremely light and flexible weight: 153 gr
Certification en250/2014 a>10° c

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recreational regulators

Understanding the Cressi Master Cromo 2nd Stage Regulator