Shaft Packing Seals Ring Die Formed Packing Graphite and PTFE Packing
PTFE packing is a good sealing material, and it is made by braiding PTFE strips.
With High cross-sectional density and structural strength ;
Low coefficient of friction result in easy shaft running ;
Long lubricant squeezed out under operating pressure.
PTFE packing is for dynamic seal at high linear speed, often used in check and needle valve stems, reciprocating rods, rams, and plungers, and safety injection system valves.
1) Pressure: 2MPa in centrifugal pumps, 10MPa in piston pumps, 20MPa in valves
2) Temperature: <280°C
3) Linear speed: 4m/s in centrifugal pumps, 2m/s in piston pumps, 2m/s in valves
4) pH range: 0 - 14
5) Thickness: 3.0 - 50mm
Pure Graphite Ptfe Packing are found in electric engines, transmissions, agricultural machines, bearing pedestals and rolling mills.
Pure Graphite Ptfe Packing used to seal against dust, dirt, lubricant, oil or water spray from the outside.
We can provide Black Pure Graphite Ptfe Packing, Blue Pure Graphite Ptfe Packing, White Pure Graphite Ptfe Packing, Yellow Pure Graphite Ptfe Packing... We can make according to your requiments, but materials have an effect on color. So, not all the material can make in all color.
Application Parameter of Pure PTFE Packing :
|Material||100% virgin PTFE resin|
|Diameter||as customer requires|
PTFE packing With High cross-sectional density and structural strength ;
PTFE packing is Low coefficient of friction result in easy shaft running ;
PTFE packing is Long lubricant squeezed out under operating pressure
Application Parameters of graphite PTFE packing :
|Equipment : Check and needle valve stems, reciprocating rods, rams and plungers , reactors |
centrifugal pumps & equipment rotary applications
|Temperature : -2000F (-1300C) to +5500F(+2880C)|
|pH range : 0-14|
|Shaft speed : to 3000 rpm|
|Pressure : to 300 psi (20 bar) rotary/ centrifugal; to 2000 psi (138 bar) valves|
PTFE braided packing of multi-filament yarn is braided with stretched and reinforced PTFE fiber, then, fully impregnated with PTFE latex.
PTFE packng is widely used in chemical industry (other than Fluorine gas and alkali metals), pharmacy, food, papermaking, chemical fiber and other industries.
PTFE packing has good chemical reistance to acid, alkali, solution and other mediums with corrosion, and be applied in wide temperature limit and low friction rate, with good sealing effect in urea amine pump and thick nitric acid plunger pump, the usage life in amine pump with media of grain is more than double of normal PTFE packing .
PTFE packing Size:
|Product Type||High strength pure PTFE gland packing|
|Thickness||3.0mm - 50mm|
|Refractoriness||-40~ + 260 °C(-500/+500°F)|
|Cross Section:||≥1/8'' ~ ≤3'' (3X3-75X75mm)|
|Density (with lubricant)||1.95~2.05 g./cm3|
|Regular package: (Special package is also available as requested)||5 or 10kg/roll|
|Max. working pressure: (rotary pump)||3Mpa|
|Max. working pressure: (reciprocating pump)||10Mpa|
|Max. working pressure: (valve)||20Mpa|
|Linear speed: (rotary pump)||10M/S|
|Linear speed: (reciprocating pump)||2M/S|
|Linear speed: (valve)||2M/S|
|Place of Origin||Zhejiang, China (Mainland)|
PTFE packing warm tips:
High-temperature lubricant can be added as requested, then,the density of packing will be 1.90-2.05g/cm³
The packing core can be replaced as red rubber core as request.