FKM O‑Ring, NBR EPDM Silicone HNBR Rubber O Ring Seals, High Chemical Resistance Oil Resistant Sealing Gasket for Hydraulic Pneumatic Machinery

Brown reddish FPM 90A high-pressure resistance FKM O-rings, manufactured for demanding hydraulic and pneumatic sealing applications. Engineered for superior chemical resistance, oil resistance, and long-term reliability in extreme operating conditions.

• FKM O-rings, also known as fluorocarbon rubber O-rings, are high-performance sealing components widely recognized for outstanding resistance to high temperatures, oils, fuels, chemicals, and oxidation.
• Made from premium fluorine rubber material, our FKM O-rings feature excellent anti-aging, anti-ozone, and weather resistance properties. They maintain stable sealing performance under harsh working conditions and have low compression set to prevent permanent deformation after long-time compression. The operating temperature range is typically from -20°C to +200°C (special formulations can reach up to 250°C).
• We supply FKM O-rings in various standard sizes, and custom sizes, colors, and hardness are available upon request. Besides FKM material, we also provide alternative rubber O-rings including NBR, EPDM, Silicone, and HNBR for different working environments.

Type: O-Ring

Size: ID × CS, OD = ID + 2 × CS

Operating Temperature: approximately -20°C to +250°C.

Mainly used in manufacturing and automotive industries, as well as electronic applications, for all kinds of heat-resistant and water-resistant products, such as rubber hoses and dustproof washer seals.

We hold the following certifications:

• ISO 9001:2015
• ISO 14001:2015
• ISO 45001:2018
• IATF 16949
• FDA
• REACH
• ROHS
• SGS

• ISO 45001 Certificate (PDF)
• ISO 14001 Certificate (PDF)
• ISO 9001:2015 Certificate (PDF)
• IATF 16949:2016 Certificate (PDF)

We can also produce:

• Automotive Rubber Seals
• Connector Rubber Seals
• Power Tool Rubber Seals
• Valve Rubber Seals
• Pipe Rubber Seals
• Semiconductor Rubber Seals
• Hydraulic & Pneumatic Rubber Seals
• Pump Rubber Seals
• Oil and Gas Seals
• Food Grade Rubber Seals
• Medical Rubber Seals
• Chemical Equipment Rubber Seals

For color, we can manufacture according to customer requirements. The table below shows the colorful O-rings we have made. If you need colored O-rings, please provide the Pantone number.

Rui Chen Sealing Co., Ltd. was established in 2006 and now has more than 200 staff members. The company has two branches in Guangdong and Jiangxi: Dongguan Rui Chen Sealing Co., Ltd. and Shangrao Rui Chen Sealing Co., Ltd.

In recent years, the company has been supported by the Shangrao municipal government and fully enjoys all preferential policies for the economic development zone. We always take "best quality, best service" as our mission, and make progress together with you in harmony and mutual win.

Ruichen always meets our customers' requirements. To ensure we produce high-quality O-rings, our company implements the following general standards:

1. Raw material incoming inspection standard: ASTM D2000 & HG/T 2579-2008 & HG/T 2811-1996
2. Public O-ring dimensional tolerance: GB/T 3452.1-2005
3. N-level specification for O-ring appearance quality inspection: GB/T 3452.2-2007
4. Hardness measurement model: Micro O-Ring Testing (Type M system)
5. Hardness using standard: ASTM D2240 Rubber Standard Test Method (Shore A)
6. Sampling inspection specification: GB/T 2828.1-20

Ruichen has cooperated with many superior customers. We have a complete system and excellent productivity to serve you.

Many big companies select RUICHEN for their rubber seals and customized rubber parts because we always satisfy them in quality, price, delivery, and service. At the same time, we also attach great importance to small customers in niche markets. Whether your purchase quantity is big or small, you are our valuable partner.