Equipment for local and volumetric PWHT (heat treatment of welded joints)

Heat treatment unit RT75-6

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  • Description and specifications

Heat treatment unit for welded joints RT75-6 is one of the most popular unit in our company. 

This unit, known as PWHT unit, allows to decide most of problems arising during instlation jobs. It is possible to do preheating before and during welding, post-welded heat treatment of pipelines in different diameters, while installing on pipe racks and others construction sites with this unit.

RT75-6 allows to process tubes up to 1000 mm in diameter, providing multi-zone temperature control of welded joints and weldeng zones, depends on many parameters (geometrical dimensions, heat treatment modes, applicable regulatory documents).

Post-welded heat treatment unit RT75-6

Weight, kg
Number of channels
- Hard frame case with powder painting and additional varnish coating - Power sockets on the back panel - Special wheels for manual move - Reinforced base for loader transportation - There are 4 eye-bolts on the top panel to move by crane
- Air cooling - Insulation class - H - Voltage on the primary winding - 50 Hz, 3 outlets of 360, 380, 400V
Power at 100% cycle, kW
Working voltage (secondary winding)
0 - 30 - 60V
Nominal power of each channel
10,8 kW 4 heaters
Primary current at 100% cycle, A
- Control of working temperature of transformer with forced shutdown in case of overload or short circuit -Stop button -Contact voltage respective to the grounding 30V -Individual protection of each channel through a fuse -Safety shutdown device 300mA (optional) -Control voltage stabilization unit (optional)
Contact voltage referring to grounding
- Maximum voltage is 30V with quick-release tripping via built-in protective shutdown device 300 mA
Temperature register
12 or 6-channel, electronic. Record on chart paper of 180 mm (optional - paperless recorder)
Thermocouple inputs
12 or 6 type K thermocouple panel connectors
Type of controller
TC-60 or TC-80 with special software in case of separate control for each channel. P250A or P256A by request in case of control of all channels by one program.
Visual control
- Neon indicator - Ammeter 200А
Manual control
Enegry regulator on each channel
Dimensions LxWxH, mm
850 x 760 x 1680
Order code Description Add to Cart
750070 Local heat treatment unit RT75-6
Order procedure

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The confirmation

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