Home > Products > Cylinder&SCBA spare parts > Pressure Reducer for SELF CONTAINED BREATHING APPARATUS (SCBA )/ FIREFIGHTING EQUIPMENT-Ayonsafety
Pressure Reducer for SELF CONTAINED BREATHING APPARATUS (SCBA )/ FIREFIGHTING EQUIPMENT-Ayonsafety
- 1500 Piece / Pieces per Month
- shanghai port
- T/T L/C D/P D/A Credit Card
Product Details
Place of Origin: | Shanghai, China | Brand Name: | AS | Model Number: | AS |
Product Description
Pressure Reducer
Brief Introduction:
The function of pressure reducer is to reduce the high-pressured air in the air cylinder to be (7±2.5)bar which is the proper functioning pressure of demand valve. No matter how the air pressure in the air cylinder and breathing frequency of users change, pressure reducer always has a stable pressure output.
The main parts jointed with pressure reducer:
·One or two air cylinders
·Medium pressure hose transmitting air to demand valve
·High pressure hose connected with pressure gauge
Note: Be sure to release pressure for the system before disconnecting the pressure reducing assembly.
Safety Valve:
The safety valve is located on the pressure reducer and when the pressure of medium pressure hose is over than safety level, the safety valve will automatically open to release to reduce the pressure. When the medium pressure returns to the standard level, it will be turned off again. According to the CE/GA124-2004 standards, the opening pressure of safety valve and exhaust pressure should be included in the scope of 110%~170% maximum designed value of pressure reducer's outputting pressure; The closing pressure of safety valve is not less than the maximum designed value of pressure reducer outputting pressure.
Opening pressure of safety valve and exhaust pressure: (9.9~15.3)bar
The closing pressure of safety valve: ≥9.9 bar
Pressure Indicator and Alarming Device:
The pressure indicator is specified by scale ranged between(0~400)bar, it is connected with the Reducer through a high pressure hose. The display panel is made of fluorescent material, which enables user to read the figure in darkness. The gauge surface is made of shock-resistant material, protected by rubber cover, waterproof, and dustproof. The high pressure hose is equipped with flow limit device, thus when the pressure gauge is separated from the high pressure hose, the air leaking volume should be no more than
25L/Min while the cylinder pressure is at 200bar.
The alarming device is on the high pressure hose near the pressure indicator. When cylinder pressure is below(55±5)bar, the whistle will make about continuous 90d B(A) of noise. Working hours last another 3-5 minutes after warning, if we assume the alarming pressure at 5bar, cylinder volume 3L, user average exhalation at 30L/min, it differs according to cylinder volume at the same time. Under such conditions, user must quit from dangerous place after hearing the alarm and is only allowed to continue to work after replacing with a new cylinder. The Warning Device is fixed on the high pressure pipe near the pressure gauge. When the cylinder pressure reduces to (55±5) bar, warning whistle will produce the continuous
sounds over 90d B(A). If the calculation is made according to the warning pressure value of 5 bar, air cylinder volume of 3 L and users’ average gas consumption of 30 L/min, it can be used about 3-5 minutes after the warning and the using time of different cylinder volume differs after the warning. Therefore, users shall evacuate from the site after hearing the alarm and can continue to work after changing air cylinder.
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Contact Us
- Ayon Safety (Shanghai) Co., Ltd.
- Contact nameEva Chou
- Phone86-021-61632189
- AddressRm. 2607, No. 10880, New Jinqiao Rd.
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