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PTFE lined pipe flaring process _ ptfe tube flaring
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PTFE lined pipe flaring process during production.
PTFE lined pipes is manufacturing with the following steps
carbon steel or stainless-steel pipe welded with flanges on both ends surface preparation of flanges
PTFE tube inserted with tight tolerance
Hot air blow with a hot gun on PTFE tube outside flange surface
On the plastic stage ( approx.330 - 340 deg. c ) when the color looks transparent, the first tool bends it, and the second tool press it to the flange with the shape of the flange side, it sticks to the flange sealing area to form a gasket. since PTFE is softer material, it also works like a gasket itself.
The main purpose of flaring PTFE tube is to get the complete surface of PTFE so, in process of chemical or any media, it never gets direct contact with the metal surface.
PTFE lined pipes is manufacturing with the following steps
carbon steel or stainless-steel pipe welded with flanges on both ends surface preparation of flanges
PTFE tube inserted with tight tolerance
Hot air blow with a hot gun on PTFE tube outside flange surface
On the plastic stage ( approx.330 - 340 deg. c ) when the color looks transparent, the first tool bends it, and the second tool press it to the flange with the shape of the flange side, it sticks to the flange sealing area to form a gasket. since PTFE is softer material, it also works like a gasket itself.
The main purpose of flaring PTFE tube is to get the complete surface of PTFE so, in process of chemical or any media, it never gets direct contact with the metal surface.
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