| Style
688 |
 |
Square braid, pure flexible graphite which has been expanded and made into a
braidable yarn and treated with PTFE as a sealant.
Style 688 is available in the following cross-section range:
1/8" to 2" (3.0 mm to 50.8 mm)
|
| Applications |
Performance |
Rotary |
Reciprocating |
Valve |
| UTEX Style 688 is suitable for steam, water, oil, solvents, alkalies, acids, and
most chemicals. Exceptions are oleum, fuming nitric acid, aqua regia, and fluorine.
Style 688 is recommended for rotary and centrifugal applications. It is also excellent
for valves and other static applications.
|
| Max Pressure
-psi bar kg/cm² |
450/31/31.6 |
N/A |
1500/103/106
4000/276/281* |
| Temp -
°F/°C |
in non-oxid. atm. |
-300 to +6000°F
(-184 to +3316°C) |
N/A |
-300 to +6000°F
(-184 to +3316°C) |
|
in oxid. atm. |
-300 to +850°F
(-184 to +454°C) |
N/A |
-300 to +850°F
(-184 to +454°C) |
|
in steam |
-300 to +1200°F
(-184 to +649°C) |
N/A |
-300 to +1200°F
(-184 to +649°C) |
| pH
Range |
0 to 14 |
N/A |
0 to 14 |
| Max Speed
fpm (mps) |
4500 (22.8) |
N/A |
200 (1) |
