Anticorrosive protection of pipelines
ANTI-CORROSION BITUMEN POLYMERIC SYSTEM «BIZOM-ARM-TERMO»
ANTI-CORROSION BITUMEN AND POLYMER SYSTEM «BIZOM-ARM-TERMO»
Intended for protection against underground and atmospheric corrosion of external surfaces of major steel gas-and-oil pipelines and product conduits to 1220 mm dia. inclusive when their construction and repairs.
The anti-corrosion bitumen and polymer system «BIZOM-ARM-TERMO» consists of «BIZOM-ARM-TERMO» tape and a primer «OZOM-GRUNT-TERMO».
«BIZOM-ARM-TERMO» tape is a self-adhesive roll material coated with a layer of high thermoresistant bitumen and polymer mastic reinforced with glassweb mesh. The mastic layer is protected with anti-adhesion film in order to prevent sticking of tape turns in a roll.
«OZOM-GRUNT-TERMO» is a liquid homogenous composition made on the basis of bitumen, phenol formaldehyde resin and solvents.
«BIZOM-ARM-TERMO» system is classified into grades «BIZOM-ARM-TERMO(60)» and «BIZOM-ARM-TERMO(60) grade «UV» (UV-protected).
PHYSICAL AND MECHANICAL PARAMETERS
Descriptions | Measurement conditions | Values |
Tape thickness, mm | +20 °C | 1,6 + 0,1 2,1 + 0,1 |
Tape width, mm | +20 °C | 450 ± 3 225 ± 3 150 ± 3 |
Backing tape thickness, mm, at least | +20 °C | 0,6 + 0,03 |
Mastic layer thickness, mm, at least | – | 1,0; 1,5 |
Adhesion of tape to the primed steel surface, kg/cm, at least | +20 °C | 3,5 |
APPLICATION
«BIZOM-ARM-TERMO(60)» and «BIZOM-ARM-TERMO(60) grade «UV» are intended for mechanized (with insulating machines, devices) and manual application on a pipeline surface at the ambient air temperature from +40 °С to -20 °C.
According to physical and mechanical and protective properties «BIZOM-ARM-TERMO» system corresponds to «В» class that is a very strong coating as per DSTU 4219-2003.
According to temperature resistance and depending on the maximum operating temperature «BIZOM-ARM-TERMO» system corresponds to class «60» — this system is resistant at a pipeline temperature to +60 °С as per DSTU 4219-2003.
According to resistance under special operating conditions «BIZOM-ARM-TERMO(60) grade «UV» corresponds to «UV» class — this coating is fit for service during long-time UV action.
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