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FFKM O-rings provide the highest temperature (up to 620 ° F) and most common chemical resistance among all rubber O-ring and gasket materials.
Brand:
JST SealsItem NO.:
KALFLUO® 8520Payment:
T/TProduct Origin:
ChinaShipping Port:
GuangzhouOrder(MOQ):
50FFKM O-Ring Sealing Solutions for semiconductor applications
FFKM O-rings provide the highest temperature (up to 620 ° F) and most common chemical resistance among all rubber O-ring and gasket materials. FFKM O-rings can be used in the most demanding applications, with dozens of compounds specifically designed to achieve target application performance such as low or high temperature, chemical compatibility, and industry compliance.
KALFLUO® 8520 has excellent resistance to chemical corrosion, organic acid, inorganic acid, alkali, ester, ether, ketone, aldehyde, etc. It has outstanding heat-resistant air aging performance. It can be used in the environment of high temperature hot air in the semiconductor manufacturing process, and the maximum operating temperature is 315 °C. It can be made into o-ring, diaphragm, gasket, rubber strip, rubber plate and customized products.
To support the replacement and upgrade of seals in semiconductor industry and medical equipment industry, JST has devoted to R&D on semiconductor FFKM compounds, medical & food compounds, and set up a class 10,000 clean room.
We have more optimized and advanced production processes, a higher-standard quality control system, a more accurate logistics control system, as well as a safer, healthier and more environment-friendly management system.
Mechanical Property
|
Properties |
Unit |
Value |
Standard |
|
Hardness |
Shore A |
72 |
ASTM D2240 |
|
Tensile strength |
MPa |
11 |
ASTM D412，500mm/min |
|
Elongationat break |
% |
207 |
ASTM D412，500mm/min |
|
Compression set 70h×204℃ |
% |
11.9 |
ASTM D395B 214-O-RING |
If you have any questions or special requirement, please contact us.
Fluid resistance overview
|
Fluid |
Volume Swelling |
|
Inorganic acids |
++++ |
|
Organic acids |
++++ |
|
Alkalis |
++++ |
|
Amines (RT) |
++++ |
|
Hot amines (> 70°C) |
+++ |
|
Water/Steam |
+++ |
|
Ketones |
++++ |
|
Esters |
++++ |
|
Ethers |
++++ |
|
Aldehydes |
++++ |
|
Alcohols |
++++ |
|
Hydrocarbons |
++++ |
|
Sour gas |
++++ |
|
Fluorinated fluids |
+++ |
Key to fluid resistance:
++++= excellent
+++= very good
++=good
+=bad
Application
KALFLUO® Product
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Categories
This is sealing product developed by JST to meet the increasingly demanding sealing needs of equipment manufacturers and users in semiconductor, petrochemical, mechanical seal, instrumentation, energy, biopharmaceutical, food and medical industries.
FFKM O-ring is a circular seal made of perfluoroelastomer compound, with a higher fluorine content than FKM fluoroelastomer.
Many industries use FFKM O-rings in critical applications where sealing failure is strictly prohibited. These industries include chemical processing, energy, semiconductors, pharmaceuticals, oil and gas recovery, aerospace, and other industries.
Perfluoroelastomer (FFKM) O-rings have carbon fluorine bonds, making them one of the most thermally stable, oxidative stable, and chemically stable fluorinated polymers.
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In LNG operations, valves can regularly encounter temperatures below -320 F (-196 C) and pressures above 750 pounds per square inch (psi). They are also subjected to periodic variations in temperatures known as “thermal cycling,” which can result in hardware expansion as well as shrinkage and material stresses. These factors make reliable, long-term valve operation an engineering challenge.
Spring energized PTFE seals consist of variety of jacket profiles and spring types. It can achieve the sealing effect compensation under different pressure conditions by spring energizer.
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For inquiries about our products or pricelist, please leave to us and we will be in touch within 24 hours.
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