Dongguan Ruichen Sealing Co., Ltd.
TO BE O RING KING
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260C Heat Resistant High Temperature Rubber O-Ring FKM 75 Shore Seals Fluororubber FKM
FKM® or fluorocarbon elastomers were first introduced in the mid 1950's. Since then they have become of major importance in the seal industry. Due to its good chemical resistance, high temperature range and its low compression set, fluorocarbon rubber is the most significant single elastomer development in recent history. The working temperature range ifor FKM® is considered to be -15 to +400 degrees F (-29 to +204 degrees C), but it will take temperatures up to 600 degrees F (316 degrees C) for short periods of time. Du Pont's Kalrez® is normally recommended up to 500 degrees F (260 degrees C). On the low end, FKM® compounds have been known to seal at -65 degrees F (-54 degrees C) in some special static applications, however the normal low temperature limit is -15 degrees F (-26 degrees C). Fluorocarbon 0-rings should be considered for seal use in aircraft, automobile, scientific instruments and other mechanical devices requiring maximum resistance to elevated temperature and to many functional fluids. They are widely used in diffusion pumps on vacuum systems and on vacuum flanges on mass spectrometers and electron microscopes. FKM® is recommended for most applications and Kalrez® is only used where the additional temperature range can be justified by the increased cost.
FKM® and Kalrez® are recommended for:
FKM is not recommended for:
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ORK offers the seal industry's largest inventory of o-rings, which includes every standard AS568 and ISO 3601 size, and the following:
In addition to standard imperial and metric sizes, ORK also carries a wide variety of non-standard sizes. With over 8,000 different o-ring sizes in-stock, we have exactly what you are looking for and we can assure immediate delivery of any size in large or small quantities.
O-Ring Sizing Guides
Still have questions about finding a standard or non-standard o-ring size? Feel free to either contact us
| Material | FKM/FPM(fluoroelastomer) |
| Advantage | 1,Excellent High Temperature Resistance |
| 2. Excellent Abrasion-Resistance | |
| 3,Excellent Oil Resistance | |
| 4.Excellent Weathering Resistancee | |
| 5.Excellent Ozone Resistance | |
| 6.Good Water Resistance | |
| Disadvantage | 1.Poor Low Temperature Resistance |
| 2.Poor Oxygenated-Solvent Resistance | |
| Temperature | -20℃~230℃ , -40℃~250℃(special formula) |
| Application | 1.For Auto |
| 2.For Aerospace | |
| 3.For Electronic Products |
Products Show:
Process Flow:
Raw material test → Prescribe → Mixing Material → Cutting Material → First Cure → First Part Inspection → Casual Inspection
→ Burr Dealing → Eye Inspection → IPQC → Washing or Grinding → Post Cure → FQC → Packing
FAQ:
1,Are you manufacture or trading company ?
We are manufacture, we have two factories, one located in Shangrao City,
Jiangxi Province, one in Dongguan City, Guangdong Province
2,Can I get samples from you ?
Of course, you can. If the samples you need we have in stock, you can get them for free,
only need to pay for the express cost.
3,What's the term of payment ?
Amount < US$2000, 100% paid in advance by paypal or T/T;
Amount >= US$2000, 30% paid in advance, 70% balance before shipment by T/T.
4,Can you produce OEM products ?
Yes, we can produce products by your drawing or samples.
5,What's your MOQ ?
If we have the products in stock , the quantity by your requirement, If we don't have them in stock:
NBR, SIL, SBR, EPDM, NR: 100 US$; PU, HNBR, FKM: 150 US$