Page 125 - GarlockFluidSealing2010

TANDEM SEAL™*
Benefts
Chemical-resistant and fre-safe
¦PTFE envelope withstands aggressive chemicals
and corrosive media
¦Fire-safe—passed independent fre tests
¦Two sealing elements signifcantly reduce corro-
sion and bacterial contamination of fanges
¦Seals to the ID of the pipe bore
¦Specify pipe schedule when ordering
1. PTFE envelope
2. Profled inner ring
3. Metal windings
4. Filler material
5. Outer guide ring
1
Secondary
Sealing Element
Primary
Sealing Element
2
3 4 5
Standard Construction
Seal Comparison
Corrosion starts in
blue area
TANDEM SEAL ™ Design
Effectively
seals to
bore of pipe
Media
Media
D-7
* Patent No. 5511797
Traditional Design