User manual for overflow and high pressure hoses
High pressure hose technical data / operating instructions
The assembly and the individual components comply with the directives PED 97/23/EG
These operating instructions / data sheet for the high-pressure hose must be read completely before installation, commissioning or maintenance of the assembly. Failure to do so may result in serious damage to property or personal injury. High Tech Diving, the manufacturer, accepts no liability whatsoever for any damage to property or personal injury, direct or indirect, or for any consequential damage such as loss of production resulting from failure to comply with the instructions given in this document and failure to comply with applicable standards (DIN standards).
Before starting to install the assembly and high-pressure hose, the guidelines of the applicable standards, in particular PED 97/23/EC, standard EN-837, ATEX directive 94/9/EC, standard EN13463, DIN 477 and EN-144 must be observed and checked or fulfilled for the completion of the filling system. This also applies to the renewal of already existing filling systems. (e.g. breathing air compressors, diving compressors, fire department compressors and filling systems).
High-pressure hoses in use with oxygen
It must be checked that all components in connection with the high-pressure hose (fittings, O-rings, valves, pressure gauges) are designed for such an application. All assemblies must not have been in contact with oil or any other grease (this includes human skin evaporation) or dust, and materials that are not compatible with oxygen.
E X P L O S I O N S G E N E R A T I O N !
To avoid a temperature increase due to adiabatic pressure, in the high pressure hose:
it is assumed to increase the pressure slowly (max. 25-50l/min flow rate).
Mounting: The assembly, the high pressure hose, must be mounted professionally according to the current technical rules.
It is recommended to install the shut-off device between the pressure tapping point and the high-pressure hose.
In explosive areas (oxygen) it is recommended to use non-sparking tool (EN1127-1)
Pressure connections must be tight, only seals or sealing elements suitable for the process connection may be used, which are also resistant to the medium to be transported.
When connecting the assembly, never use the housing or the hose, but always the wrench socket and / or handwheels provided for this purpose.
The maximum operating pressure of the assembly / component with the lowest value, is the max. operating pressure of the entire system. Care must be taken or safety precautions taken to ensure that this value cannot be exceeded.
(Use of 200 bar components in 300 bar pneumatic systems).
It must be ensured that a distance of at least 200 mm is maintained between the components of the high-pressure hose and the directly adjacent surfaces.
When reusing the assembly, only use it for media that correspond to its initial use (contamination by contaminated gases).
The minimum bending radius of the high-pressure hose must not be less than 200 mm.
The temperature range for use must be observed and is min. -10 °C to +40 °C.
Operation: Caution: Failure to comply with the above conditions will impair the operational safety of the high-pressure hose!
The operating conditions must be compatible with safe use. After completion of each filling process, all shut-off elements, including those of the pressure tapping point, must be closed. The operator must have the necessary technical training. It is expressly pointed out here to complete an appropriate training course before use (e.g. gas mixing, gas blender, etc.). The assembly must not be exposed to the following influences. If this does occur, a qualified person must inspect the assembly and, if necessary, repair it using suitable equipment.
Mechanical shocks, standing or striking loads
Vibrations, tensile stresses, buckling and shear loads
Pressure pulsations, overload, overpressure
impermissible operating temperature e.g. heat radiation, temperature increase due to pressure rise
aggressive and flammable media (gases), ignition sources, impurities, dust
Disassembly of the high-pressure hoses, oxygen hoses and overflow hoses
Before disassembly, make sure that no pressure is applied to the assembly / high-pressure hose. As a precaution, carry out the disassembly slowly.
Make sure that there is no risk of injury during and as a result of disassembly.
Connected assemblies and accessories cannot fall over, tip over or drop down.
Residual media (e.g. oxygen) still present in the system can, under certain circumstances, endanger people and the environment.
Maintenance of the high-pressure hoses, Oxygen hoses and overflow hoses
The assembly, including the high-pressure hoses, must be inspected and preventively repaired at regular intervals to be determined by the operator in accordance with the operating conditions and the Operational Safety Ordinance. The max. interval duration for this is one year.
All assemblies which must be assumed to have been exposed to abnormal conditions, e.g. fire, materials of insufficient quality, shocks, etc. must not be used under any circumstances. The same applies if leaks occur.
If it is not possible to carry out a proper maintenance or repair in your house, please send us the assembly for maintenance!
High Tech Diving
Tel: +49 (0) 37206 84551
Fax:+49 (0) 37206 75052