Regarding titanium tubes and titanium flanges
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In the design of titanium coiled tubes, can the material of the titanium flange be indicated as TA2 directly? Can the HG20592 standard be used? How should the fasteners used for flanges be selected, including bolts, nuts, and gaskets? The coil is filled with cold brine, while the medium inside the equipment is trichloroethylene. The coil type refers to the heat-insulating coil inside the equipment.
This material is so expensive; I can’t use another one
There are flanges made of pure titanium, which can be manufactured in accordance with the HG20592 standard. If cost is a concern, slip-on flanges can be used.
Among the titanium pipes I’ve seen, those with flanges that use slip rings are common; they follow the standard HG20599 (the standard for butt-welded, loose-flange steel pipe flanges). It’s not necessary for the flange fasteners to be made of titanium, right? I’ve seen ones that use 8.8 grade materials in accordance with GB901/GB6170: handshake
The flanges inside the equipment must be made of titanium. If the temperature is not too high or the pressure is high, TA3 or TC4 should be used for bolts and flanges. Gaskets are selected based on temperature and pressure; for temperatures below 150 degrees, PTFE wound gaskets can be used. If the original poster provides more detailed information about the operating conditions, everyone will be able to offer better suggestions! :lol :lol
If it is inside the equipment, pure titanium is recommended for the flanges; for external use, swivel types are suggested. TA9 is recommended for the welding rings. Anyway, titanium is now cheap – its price is less than 110 kilograms per unit.
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