FIRST STAGE PRESSURE REGULATOR/BELL ALARM COMBINE PRESSURE REGULATOR AND BELL ALARM IN ONE COMPACT ASSEMBLY PRESSURE REGULATOER REDUCES AIR CYLINDER PRESSURE TO APPROXIMATLEY 90-140 PSI. BELL ALARM ACTIVATES WHEN REMAINING USABLE AIR SUPPLY DROPS TO APPROXIMATLEY 20% -25% OF CYLINDER CAPACITY, OR CYLINDER PRESSURE OF APPROXIMATLEY 1000-1225 PSI. BUILT-IN INTEGRAL PRESSURE LIMITING DEVICE MAINTAINS SAFE OUTLET PRESSURE IN CASE OF FAILURE IN PRIMARY REGULATOR. IT WILL FAIL IN THE "OPEN" POSITION. AUDIO BELL WILL SOUND AT A FASTER RATE. USER IS ABLE TO CONTINUE BREATHING AT NORMAL RESPIRATORY RATES. IMMEDIATELY EXIT THE IDHL ENVIRONMENT! HIGH PRESSURE HOSE LEADING TO DIGITAL PRESSURE DISPLAY CONSISTS OF TWO PARTS: AND INNER HOSE AND AN OUTER RUBBER JACKET. OUTER RUBBER JACKET HAS TINY PINHOLES TO DETECT AN AIR LEAK IN THE INNER HOSE. |