Classic downstream piston- The best example of bulletproof reliability and trouble-free, minimum maintenance regulators.  The classic downstream piston configuration is the simplest mechanism that exists to control the pressure drop from a tank to feed the second stage.  The classic downstream valve is the first choice of diving centers and rental facilities worldwide for warm and moderate water temperatures.

DIN/INT first stage configurations. To ensure worldwide compatibility, all SCUBAPROregulator systems are available in a 200bar INT version as well as 300bar DIN versions.

• Classic downstream valve. Classic downstream valves are particularly noted for their legendary safety and reliability. When in use, the downstream valve opens in the same direction as the incoming air flow. To close the valve and stop the air flow, a spring counteracts the force of the incoming air. Therefore, a certain inhalation effort is always required to overcome the spring tension and open the valve.

Technical Information

• Classic downstream piston
• Chrome plated brass body
• Low pressure ports: 4
• High pressure ports: 2
• Tank connection: INT 230 bar / DIN 300 bar
• Weight: : INT 230 706 / 24.9 - DIN 300 485g / 17.1oz
• Air Flow at 200bar: 2600 l/min - 92 SCFM
• Intermediate pressure (bar/psi): 8.5-9.8 / 123-142