CONSTRUCTION
Styles 2550 and 2551
crinkled flexible graphite
tape are made from high purity graphite with no fibers, binders
or other additives. Style 2550 crinkled tape is typically used
as a stuffing box packing for pumps and valves. Style 2551 is
the same as 2550 except that it is furnished with a
self-adhesive backing strip to facilitate installation as a
form-in-place gasket, thread sealant, or for facing jacketed and
other difficult-to-seal gaskets.
APPLICATION /
SERVICE
Styles 2550 and 2551
Flexible graphite covers a
broad range of sealing applications. It handles most chemicals
in the 0 - 14 pH range at cryogenic and elevated temperatures,
and from vacuum to extreme pressures. It is used extensively in
the chemical, automotive and pump and valve industries.
|
SERVICE LIMITS |
|
Type |
Description |
Value |
|
Temperature |
Minimum |
-320°F (-200°C) |
|
|
Maximum |
|
|
|
In air
|
840°F (450°C) |
|
|
In steam
|
1200°F (650°C) |
|
|
In reducing or inert media
|
5400°F (3000°C) |
|
Pressure |
Static |
2000 psi (137 bar) |
|
pH |
|
0-14 |
|
Typical Properties
|
Carbon Content |
98% minimum |
|
|
Leachable Chlorides |
50 ppm maximum |
|
|
|
|
|
|
Total sulfur |
100 ppm maximum
|
|
STANDARD PACKAGING* |
|
Tape Thickness |
Tape Width |
Spool Length |
|
.015 |
1/4”, 3/8”, 1/2”, 3/4”, 1”, 1-1/4”,
1-1/8” 1-3/4”, 2” |
1/4" thru 1-1/8"...50'
1/4" thru 1-1/8"...100' |
|
*other thicknesses,
widths, and spool lengths are available on special order |
