Vostok-T transmitters

“VOSTOK-T” transmitters are designed for generating electromagnetic signals, which give an opportunity to identify the location of cleaning pigs using the low-frequency mole (receiver) “VOSTOK-NL”. Transmitters’ method of procedure is based on transmission of electromagnetic waves of infra-low frequency 13, 22 Hz and an encoded signal with “SEMIGOR” frequency, delivered as signals in “signal-pause” format or in continuous-wave mode.

Transmitters allow tracking and identifying the location of a pig in case of its stoppagein the pipeline. They are installed onto the cleaning pigs, which are further launched into pipelines.

Transmitters are able to be used together with low-frequency moles “VOSTOKNL”,low-frequency mole manufactured by “TRANSNEFT-DIASKAN”, any modifications of low-frequency moles manufactured by “APRODIT”, receiver manufactured by “SEMIGORYE”, low-frequency mole manufactured by “ROSEN Group” and other low frequency moles, operating with signals of frequency 22 Hz.

Graph of “VOSTOK-T” transmitter’s signal behavior and primary coverage, given the parallel arrangement of “VOSTOK-NL” low-frequency mole’s  aerial and the distance between the receiving aerial and the radiation coil.

Graph of “VOSTOK-T” transmitter’s signal behavior and primary coverage, given the vertical arrangement of “VOSTOK-NL” low-frequency mole’s aerial and the distance be-tween the receiving aerial and the radiation coil.

TRANSMITTER “VOSTOK-T60” (figure “60” corresponds to body diameter of 62 mm)

For pipelines of Ø=159 (168) mm there are cleaning pigs “VOSTOK-D4T”, “VOSTOK-D6T”,“VOSTOK-M4T” and “VOSTOK-MDT”, based on modification of “VOSTOK-T60” transmitter with flange.
For pipelines of Ø=219 mm, 273 mm and 325 mm transmitters of “VOS-TOK-T60B”modification are also installed onto monoblock cleaning pigs “VOS-TOK-3DT”, “VOSTOK-4DT” and “VOSTOK-5DT”.

TRANSMITTER “VOSTOK-T80” (figure “80” corresponds to body diameter of 80 mm )

For pipelines of Ø=219 mm, 273 mm and 325 mm there are cleaning pigs “VOSTOK-D4T”,“VOSTOK-D6T”, “VOSTOK-M4T” and “VOSTOK-MDT”, based on modification of “VOSTOK-T80” transmitter with flange.
For pipelines of Ø=325 mm, 377 mm, 426 mm, 530 mm, 720 mm, 820 mm, 1020 mm,1220 mm � 1420 mm transmitters of “VOSTOK-T80” modification with flange are also installed onto cleaning pigs “VOSTOK-D4T”, “VOS-TOK-D6T”, “VOSTOK-M4T” and “VOSTOKMDT”.
For pipelines of Ø=273 mm and 325 mm transmitters of “VOSTOK-T80B” modification are also installed onto monoblock cleaning pigs “VOSTOK-3DT”, “VOSTOK-4DT” and “VOSTOK-5DT”.

TRANSMITTER “VOSTOK-T200” (figure “80” corresponds to body diameter of 219 mm )

For pipelines of Ø=720 mm, 820 mm, 1020 mm, 1220 mm � 1420 mm transmitters of “VOSTOK-T200” modification with flange are installed onto cleaning pigs “VOSTOK-D4T”,“VOSTOK-D6T”, “VOSTOK-M4T” and “VOSTOK-MDT”.