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Operating instructions overflow hoses

User Manual for Transfer and High-Pressure Hoses

High-Pressure Hose – Technical Data / Operating Instructions

The assembly and its individual components comply with the directives of PED 97/23/EC.

WARNING
This operating manual/data sheet for the high-pressure hose must be read in full before installation, commissioning, or maintenance of the assembly. Failure to comply may result in severe property damage or personal injury. High Tech Diving, the manufacturer, accepts no liability for direct or indirect property or personal damage, or consequential damages such as production downtime, resulting from non-compliance with the instructions in this document or failure to adhere to applicable standards (DIN standards).

Before starting the installation of the assembly and high-pressure hose, the guidelines of the applicable standards, particularly PED 97/23/EC, EN-837, ATEX Directive 94/9/EC, EN13463, DIN 477, and EN-144, must be observed and verified for the completion of the filling system. This also applies to modifications of existing filling systems (e.g., breathing air compressors, diving compressors, fire brigade compressors, and filling systems).

High-Pressure Hoses in Use with Oxygen

It must be ensured that all components associated with the high-pressure hose (fittings, O-rings, fittings, pressure gauges) are designed for such applications. All assemblies must not have come into contact with oil or other grease (including human skin emissions) or dust, and materials not compatible with oxygen.

EXPLOSION HAZARD!
To avoid a temperature increase due to adiabatic compression in the high-pressure hose:

It is required to increase the pressure slowly (max. flow rate of 25–50 l/min).

Installation: The assembly, the high-pressure hose, must be installed professionally in accordance with current technical regulations.

  • It is recommended to install a shut-off device between the pressure extraction point and the high-pressure hose.
  • In explosive areas (oxygen), it is recommended to use non-sparking tools (EN1127-1).
  • Pressure connections must be tight; only seals or sealing elements suitable for the process connection and resistant to the medium to be transported should be used.
  • When connecting the assembly, never use the housing or the hose, but always use the designated wrench flats and/or handwheels.
  • The maximum operating pressure of the assembly/component with the lowest rating is the maximum operating pressure of the entire system. It must be ensured that this value cannot be exceeded. (Use of 200 bar components in 300 bar pneumatic systems)
  • Ensure that there is a minimum distance of 200 mm between the components of the high-pressure hose and adjacent surfaces.
  • When reusing the assembly, only use it for media corresponding to its initial use (contamination by impure gases).
  • The minimum bending radius of the high-pressure hose must not be less than 200 mm.
  • The operating temperature range must be observed and is between -10°C and +40°C.

Operation: Caution, failure to comply with the mentioned conditions compromises the operational safety of the high-pressure hose! The operating conditions must be compatible with safe use. After each filling process, all shut-off elements, including those at the pressure extraction point, must be closed. The operator must have the necessary technical training. It is expressly advised to complete an appropriate course before use (e.g., gas mixing, gas blender, etc.). The assembly must not be exposed to the following influences. If it has been, a qualified person must inspect the assembly and, if necessary, repair it with suitable equipment.

  • Mechanical shocks, static or dynamic loads
  • Vibrations, tensile stresses, bending and shear loads
  • Pressure pulsations, overload, overpressure
  • Unauthorized operating temperatures, e.g., radiant heat, temperature increase due to pressure rise
  • Aggressive and flammable media (gases), ignition sources, contamination, dust

Dismantling of High-Pressure Hoses, Oxygen Hoses, and Transfer Hoses

  • Before dismantling, ensure that there is no pressure in the assembly/high-pressure hose. Dismantle slowly as a precaution.
  • Ensure that there is no risk of injury during and due to dismantling.
  • Connected assemblies and accessories must not fall over, tip over, or fall down.
  • Residual media (e.g., oxygen) still present in the system may pose a risk to people and the environment.

Maintenance of High-Pressure Hoses, Oxygen Hoses, and Transfer Hoses

  • The assembly, including the high-pressure hoses, must be inspected and maintained at regular intervals, which are to be determined by the operator according to the operating conditions and the operational safety regulations. The maximum interval duration is one year.
  • All assemblies that are suspected to have been exposed to abnormal conditions, e.g., fire, substances of insufficient quality, shocks, etc., must not be used under any circumstances. The same applies to the occurrence of leaks.
  • If it is not possible to carry out proper maintenance or repair in your facility, send the assembly to us for maintenance!

High Tech Diving
Kopernikusstrasse 2
09669 Frankenberg
Tel: +49 37206 84551
Fax: +49 37206 75052
Website: www.high-tech-diving.org
Online Shop: www.tek-diver-shop.de
Email: info@high-tech-diving.org