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Modified/Reinforced PTFE Gasket
Description
PTFE modified gasket is made from PTFE suspension resin with proper fillers such as glass fiber, glass microsphere, graphite, barium sulfate, carbon fiber, molybdenum disulfide, polyphenyl, argil etc. in process of molding or skiving sheet.Added a certain amount of filler, and the compression resistance and high temperature resistance will be greatly improved. It is especially suitable for using as the transmission sealing parts under the condition of - 180 ℃ ~ + 260 ℃ temperature range .
Application
Mechanical Seal
Chemical anticorrosion, Chemical Process Vessel Seal
Machine tool guideways lubrication
Bridge construction support slider
Pipe sealing in high temperature and high corrosive condition
Specification
|
PRODUCT |
FILLER |
Airtightness,L/min |
Creep Relaxation ,% |
Compressibility,% |
Compressional resilience,% |
Tensile Strength,MPa |
|
|
Garlock |
GYLON3504 |
Glass beads |
<0.015 |
40 |
25-45 |
30 |
14 |
|
GYLON3510 |
barium sulfate |
<0.015 |
11 |
4-10 |
40 |
14 |
|
|
Flexitallic |
SIGMA 500 |
Glass beads |
<0.1 |
31 |
35 |
44 |
14 |
|
SIGMA 511 |
silicon dioxide |
<0.1 |
35 |
7 |
44 |
16 |
|
|
Durlon |
9200W |
barium sulfate |
0.01 |
30 |
8-16 |
35 |
13.2 |
|
9400 |
carbon fiber |
0.01 |
30 |
5-12 |
40 |
14.5 |
|
|
VALQUA |
7020 |
ceramic fiber |
- |
48 |
4.6 |
59 |
15.2 |
|
7026 |
carbon fiber |
- |
49 |
4.5 |
73 |
26.5 |
|
|
SEALGOOD |
A |
ceramic fiber |
<0.1 |
78 |
6 |
49 |
15.7 |
|
B |
Glass beads |
0.25 |
74 |
21.4 |
33.9 |
12.3 |
|
|
C |
graphite- |
- |
62.8 |
9.6 |
38.9 |
12.4 |
|
|
self made |
Carbon fiber |
<0.01 |
16.6 |
12.5 |
60 |
14.8 |
|
|
100% PTFE |
- |
<0.01 |
81 |
16.7 |
47 |
25.4 |
|
|
Remark |
- |
ASTM F37 |
ASTM F38 |
ASTM F36 |
ASTM F152 |
||
|
Color |
Yellow |
Blue |
white |
Light Gery |
Light Brown |
|
specs |
SG-G2206 |
SG-G2207 |
SG-G2208 |
SG-G2201 |
SG-G2209 |
|
Composition |
Silica |
Micro Glass Beads |
Barium Sulfate |
Glass Fiber |
Kaoline |
|
Temperature |
-180 ℃ |
-180 ℃ |
-180 ℃ |
-180 ℃ |
-180 ℃ |
|
Density g/cm3 |
2.1-2.3 |
1.55-1.65 |
2.5-2.9 |
2.1-2.3 |
2.1-2.3 |
|
Sealability cm3/s (GB/T9129-2003) |
< 1 x 10-3 |
< 1 x 10-3 |
< 1 x 10-3 |
< 1 x 10-3 |
< 1 x 10-3 |
|
Creep Relaxation % ASTM F38 |
20 |
35 |
18 |
20 |
35 |
|
Compressibility Ratio % ASTM F36-99 |
>10 |
>16 |
8 |
10 |
10 |
|
Rebound Ratio % ASTM F36-99 |
>30 |
>32 |
30 |
30 |
30 |
|
Tensile Strength N/mm2 ASTMF 152-95 |
>20 |
>10 |
8 |
12 |
18 |
|
Flammability |
Will not support flame |
||||
Feature:
1.To improve the performance of cold flow and creep resistance: add glass fiber, glass microsphere, graphite, barium sulfate
2.To improve the performance of unctuosity : add MoS2
3.To improve the performance of heat conduction : add bronze powder, molybdenum, nickel, carbon fiber
4.To improve the performance of wear resistant property: add glass beads ,glass fiber , polyimide, polyphenyl ester
5.To improve the performance of stability and to reduce deformation: add polyphenylene sulfide,carbon fiber