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Sales Manager:Adele Shen
Tel：0086-575-82410190
Fax: 0086-575-82037239
Mobile: 0086-18106876135
E-mail: sj@sealing-china.com
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Description
We all know that PTFE has perfect resistance to most of chemicals except molten alkali metals. This kind of plastic has perfect self-lubricant. PTFE is called “king of plastic”.And the PTFE cause no pollution to the medium or liquid. Pure PTFE fibre braided packing is a braided packing made of PTFE yarn without soaking any PTFE dispersion and lubrication.But PTFE fiber braided packing has greatly enhanced ability to seal high speed shafts with the addition of inactive and heat-resisting agents.
Application
It’s widely used in sealing of food equipment,chemical industry,sealing of high linear velocity valve or pump. Specially, PTFE fibre braided packing can be applied to seal all chemicals except molten alkali metal because PTFE fibre has perfect resistance to most of chemicals. PTFE fiber braided packing can be used to seals of pharmaceutic . General speaking,it is widely used for where contamination is not allowed. It is recommended for chemical engineering.
Specification
|
Temperature |
-180-+260℃ |
|
Pressure |
Rotatory pump5MPa,Reciprocating pump15MPa,Valve25MPa |
|
PH range |
0-14 |
|
Linear speed |
4m/s |
|
Size |
3*3mm-90*90mm(or as request) |
Actual application comparison
|
Liquid device |
Axie diameter mm |
Revolution r/min |
Liquid |
Temperature ℃ |
Pressure Mpa |
Service life |
|
|
PTFE packing |
Other seal packing |
||||||
|
Centrifugal pump |
32 |
3600 |
Caustic soda |
100 |
9.0 |
60days |
Oil -impregnated non-asbestos seal packing for 7days |
|
32 |
3600 |
Urea |
130 |
-- |
34days |
Oil -impregnated non-asbestos seal packing for 2~5days |
|
|
50 |
1750 |
Dibutyl ester |
100 |
2.0 |
14days |
PTFE -impregnated non-asbestos seal packing for 1~5days |
|
|
34 |
1750 |
Nitric acid |
Room temperature |
-- |
210days |
Blue non-asbestos seal packing for 14~21days |
|
|
34 |
1740 |
Methyl amine |
Room temperature |
7.0 |
96days |
Blue non-asbestos seal packing for 14days |
|
|
30 |
1700 |
45% sulphuric acid |
77 |
-- |
46days |
PTFE -impregnated blue non-asbestos seal packing for 7days |
|
|
30 |
1740 |
chromate |
Room temperature |
4.5 |
60days |
Blue non-asbestos seal packing for 30days |
|
|
25 |
1750 |
Hydrochloric acid |
Room temperature |
4.0 |
10days |
Blue non-asbestos seal packing for 7days |
|
|
Pluger pump |
64 |
60/min |
phenol |
149 |
20.0 |
60days |
Oil -impregnated non-asbestos seal packing for 14days |
|
Pluger pump |
50 |
60/min |
Methanal |
Room temperature |
50.0 |
80days |
Oil -impregnated non-asbestos seal packing for 14days |
|
Valve |
18 |
-- |
50%sulphuric acid |
77 |
-- |
210days |
Blue non-asbestos seal packing for 14~21days |
|
Value |
18 |
-- |
sulphuric acid |
-- |
-- |
150days |
non-asbestos seal packing for 10days |
Type to choose
|
Item |
Type |
Density (g/cm3) |
|
Pure PTFE fibre braided packing |
SG-P1200 |
----- |
|
PTFE Gland packing with lubrication |
SG-P1201 |
|
|
Multiple PTFE filament packing |
SG-P1202 |
|
|
PTFE packing with silicon rubber core |
SG-P1203 |
|
|
PTFE graphite packing |
SG-P1204 |
|
|
GFO PTFE gland packing |
SG-P1205 |
|
|
Others according to customers’ samples or requirements |
||
Feature
1.Heat resistance property---It is able to wok stably between -180℃ to +260℃.
2.Excellent non-sticky property---It easier to remove those resin, dopes, oil and other sticky things.
3.Good mechanical property with no distortion and low friction coefficient.
4.Excellent insulation property.
5.Virgin and recycled materials are available