ThredSeal®
Fastener Seals
 Application:
ThredSeals® are safe, reliable and reusable seals for threaded devices.
They are designed to seal directly against threads, without any
special requirements. They are self-centering, non-directional
and affordable. ThredSeals® can also offer considerable savings
because they enable the use of low cost standard fasteners and full
threaded fittings. They are easily assembled without need for special
skills or tooling – simply push them on with a slight twisting motion
and tighten the fastener.
Features:
Unlike other cure-in-place thread sealing methods, ThredSeals® are
mechanical, not chemical in application. They can be easily assembled
and removed, do not require set up cure time, and are easily parted
from contacting surfaces without special tools or chemicals. This
enables easy access to the sealed areas. ThredSeals® seal at the
recommended pressure and temperature levels by utilizing the bolt
threads to form a contained elastomeric dam. If the elastomeric
element is not damaged to the extent of tearing or rupturing, the
seals are reusable. Close visual inspection after each removal is
recommended, and the use of cover washers will reduce the possibility
of tears or breaks in the rubber, as well as provide adequate seating
surfaces for the nut.
Design
Requirements: ThredSeals® work by blocking all leak paths in
a threaded fastener. They are used with standard bolts or screws
and generally are seated on the nut side of the fastener. Unlike
sealing directly underneath the bolt head, the nut side of the fastener
has an additional spiral leak path, created by the threads, which
will permit the fluid to wind its way through the helix. ThredSeals®
have three wedge shaped protrusions on the inside of the seal. Since
all standard screw threads have only a single V-shaped spiral channel,
one of these wedges will always be in position to block the flow
of fluid through this channel.
Key Benefits:
- Effective sealing
for standard fastener sizes
- Self-centering
- Non-directional
- Easy to assemble
and disassemble
- Reusable
- Readily available
in standard fastener sizes
- Affordable
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