PTFE FLEX-O-SEAL UNIVERSAL JOINT
Flex-O-Seal is a unique
sealing material manufactured from a special grade of
expanded 100% pure PTFE by transforming the fibrous
structure by means of a special process. Though very
tough, it is spongy and suited to almost all flanges,
covers and narrow cavities. Its special soft and
flexible character enables it to be the most ideal seal
under pressure without significant cold flow even on
irregular, badly damaged or corroded flange surfaces.
Once bolted this gasket rarely needs to be
recommended temperature - 240°C to 310° C, PH Range 0-14
No deterioration due to stocking for long time.
Resistant to high pressure, non-toxic.
recommended for use against elemental fluorine, alkali
metals and strong oxidising agents.
FLEX-O-SEAL is safely
used in petroleum refinering companies even in their
offshore operations, corrosive chemical processing, food
processing, paper mill, marine installation, for glass
lined or fibre glass reinforced vessels and tank lid
sealing, manhole covers, vent pipes, heat exchangers,
pumps or compressors housing flanges, valves and many
more industrial applications where conventional pre-cut
gaskets are not readily available or
|The sealing surface must be clean, free from
grease and dry to enable the gasket to stick
|The width of the joint gasket is to be
determined by the nominal diameter or type of flange.
Selection of a tentative size of joint gasket would be
approx. 1/3rd flange contact width inside the bolt
hole e.g., 7 mm gasket joint to suit a 20 mm flange
|Remove the protective foil from the adhesive
joint gasket to allow for fitting. Stick the gasket
approx. 2 mm away from the bolt hole and press on
|Do not butt the ends overlap them in front of a
bolt (see fig. 1) |
|Tighten the lubricated bolts in opposite pairs.
Since it is highly compressible only bolt pressure is
required to seal. The lap joint deforms perfectly to
give a reliable seal. |
|For delicate components such as glass flanges
the gasket ends can be joined by cutting a step in
each end of gasket. |
|FLEX-O-SEAL is easy to install, able to fill
severe surface irregularities and reduces inventory of
ready made gaskets, envelopes, etc. It has therefore
taken its name as UNIVERSAL JOINT GASKET. |
|On irregular or damaged flanged surfaces, it is
possible to build up with short length of
Gasket Width mm
Spool length Meter|
Other sizes on
All technical data and information is based on
our experience to date. They represent the current state
of our knowledge but assume no legal responsibilities.
The customers are asked to check these details since the
performance of a seal can be judged only where all
necessary operating data are available.
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