OPERATION AND MAINTENANCE MANUAL
01-2016
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Bends of type 9202, T-pieces of type 9203 and X-pieces of type 9218 TT should be stored indoors.
3.4 TRANSPORTATION
Bends of type 9202, T-pieces of type 9203 and X-pieces of type 9218 TT should be transported by sheltered
vehicles.
Schematic drawing of how the X-piece of type 9218 TT from DN100 – DN600, double flange bend with
the N foot of type 9202 from DN80 – DN800 and flange T-piece of type 9203 from DN50 – DN1000 should be
mounted for transport by use of slings. Use slings to transport the items mentioned above.
4 ASSEMBLY AND INSTALLATION
4.1 INSTALLATION GUIDELINES
The double flange bend with the N foot of type 9202, T-pieces of type 9203 and X-pieces of type 9218 TT
are tailored to being mounted at a line pipe of a pipeline with the application of additional flange-to-flange seals.
Before mounting the bend, it is recommended lubricating the surface of the sealing system with technical
vaseline, which will prevent rubber elements from adhering and being damaged in the course of disassembly
works. Insert the bend or T-piece into the prepared section of the pipeline, connect one of its flanges with the line
pipe, while the other flange to the vertical pipe connection. Connect the flanges by using a flange-to-flange seal.
Centre both pipe ends. Following the assembly, check if the T-piece or bend is installed correctly.
Bends and T-pieces delivered by the manufacturer are ready to be assembled at the installation. Any works
related to the disassembly of sealing elements can lead to the loss of tightness.
4.2 INSTALLATION INSTRUCTIONS
Before installing the fittings, check the technical and commercial documentation, i.e. application of
media and operation parameters of the pipeline in which they are to be installed.
Before the assembly
works, remove the sealing of the main pass, if any; check the condition of the inner surfaces of the coupler and, if
necessary, carefully wash them with water.
Any change in the operating conditions must be consulted with the fitting's manufacturer.
Method for the installation of a double flange foot bend of type 9202 is presented in the diagram below:
