Closing balloons series UBF-Al are manually loaded balloons with a protective aluminium para-amide jacket. The working part of the closing balloon manufactured for a specified internal diameter of the closed pipeline consists of a rubber tube with a high-strength protective jacket. The protective jacket is highly resistant to short-time flame exposure and radiating heat. Therefore these closing balloons are designated primarily for applications where the jacket can be exposed to thermal stress ( e.g. welding). For the jacket technical specification following below). As a rule, the loading part consists of a loading tube with a rubber plug, identification plate and fitting set. The structure of components of the loading part of individual standard manufactured balloons of this series is described on the following sheets of the catalogue, if necessary, it may be deliberately modified as may be required by the customer. (Following the sheet 2.2-1). For maximum safety, the shelf life of these closing balloons is limited. The service life (30 months, as a rule) is shown on the identification plate. The balloon may be sent to the manufacturer for the overhaul after the lapse of the service lifetime.
RANGE OF APPLICATION AND SPECIFICATIONS
Closing pipeline material:
Steel, cast iron, PE, other materials after consultation with the manufacturer
Interior diameter of closed pipelines:
50 to 1400 mm
- following type catalogue sheet
Media:
natural gas, non-aggressive gases, other media, after consultation with the manufacturer
Pressure load:
- Maximum positive pressure in the closed pipeline - following the type catalogue sheet
- Maximum positive pressure in the balloon - following the type catalogue sheet
Working temperature:
+5 to +28 °C
Protective jacket:
- Tensile strength:
2000 N
- Short-term flame exposure protection:
A1 – compliance with CSN EN ISO 11612:2008
- Radiation heat protection:
version level B1, C4, D1, E3, F1 subject to CSN ISO 11612