AS568 PG Standard Size FKM FPM EPDM Rubber O-Ring Seal for High Temperature

AS568 PG Standard Size FKM FPM EPDM Silicone Rubber O-Ring Seals for Sealing Applications

Type: O Ring

Size: ID X CS, OD=ID + 2XCS

An o-ring is a simple and versatile ring-shaped packing or sealing device with a circular cross section (from which the "O" in its name is derived). The purpose of using O-ring seals is to prevent leakage and loss of liquids or gases. They simplicity, convenience, and small installation space. As long as the groove design and material selection are correct, and the operating conditions are within the temperature range of the rubber material, the seal can have a long-term sealing effect in the static or dynamic seal.

The size of o-ring is determined by the inner diameter ID and the wire diameter CS. O-ring size calculation: outer diameter = inner diameter + 2 x wire diameter (OD = ID + 2x CS).

What An O Ring Can Apply For ?

Product Effects/Applications:

Product scope:Electrical Appliance, Hydraulic,Automobile, Furniture, Machinery, Electronic, Household, Medical, Water industry,Food industry etc.

Solution:Oil seal,Air seal,Water-proof,Solvent resistant,Heating Resistant,Dust Free,shock absorber,skid resistant, Decoration.

About FKM/FPM Fluorocarbon

Fluorocarbon elastomers have grown to major importance in the sealing industry. Due to its wide range of chemical compatibility, temperature range, low compression set, and excellent aging characteristics, fluorocarbon rubber is the most significant single elastomer developed in recent history. Fluorocarbon elastomers are highly fluorinated carbon-based polymers used in applications to resist harsh chemical and ozone attack.

• The working temperature range is considered to be -26°C to +205°/230°C (-15°F to +400°/440°F).
• For short working periods it will take even higher temperatures.
• Special compounds having improved chemical resistance are also available with new types

Generally speaking, with increasing fluorine content, resistance to chemical attack is improved while low temperature characteristics are diminished. There are, however, specialty grade fluorocarbons that can provide high fluorine content with low temperature properties.

We can supply material as NBR, FKM, SIL, EPDM, CR, NR, PU, HNBR, FFKM, ACM ,SBR , FLS , etc...

What's Each Rubber's Typical Features ?

NBR Rubber Features:

Nitrile rubber (NBR, Buna-N) provides excellent resistance to petroleum oils as well as mineral and vegetable oil. Nitrile rubber also offers strong resistance to heat aging - often a key advantage over natural rubber.

Nitrile rubber performs well in carburetor and fuel pump diaphragms, aircraft hoses, seals and gaskets as well as oil-lined tubing. Due to its versatility, nitrile is used in applications involving not only oil and fuel resistance, but those applications requiring resistance to heat, abrasion, water, and gas permeability.

EPDM Rubber Features:

EPDM rubber is a high density rubber primarily used for outdoor applications. It has dynamic and mechanical properties between natural rubber and synthetic rubber.

Do not use EPDM if continual contact with petroleum based products is required.

Not recommended for usage in food applications or those that are exposed to aromatic hydrocarbons.

HNBR Rubber Features:

Hydrogenated Nitrile Butadiene Rubber (HNBR), also known as Highly SaturatedNitrile (HSN), is special class of nitrile rubber (NBR) that has been hydrogenated to increase saturation of the butadiene segment of the carbon polymer backbone. Subsequent improvements to the material properties, over that of a nitrile rubber (NBR), include greater thermal stability, broader chemical resistance, and greater tensile strength.

HNBR is classified by ASTM as a DH-type polymer. This classification indicates 150ºC service temperature as well as less than 30% swell in IRM 903 oil. HNBR can be formulated to meet application temperatures ranging between -50°C and 165ºC.

SBR Rubber Features:

1.Main materials: Styrene-butadiene rubber (SBR), a general-purpose synthetic rubber,produced from a copolymer of styrene and butadiene. Exceeding all other synthetic rubbers in consumption, SBR is used in great quantities in automobile and truck tires, generally as an abrasion-resistant replacement for natural rubber (produced from polyisoprene).

2.Available place: They are widely used in automobile, electrical appliances, building vibration isolation and other industry. For example, air blower, water pump, instrument, measuring of ships and so on.

3.Main performance: SBR has similar chemical and physical properties to natural rubber, with generally better abrasion resistance,outstanding strength,good creep and stress relaxation resistance and low cost,etc. It is not recommended to use SBR in applications that involve ozone, strong acids, oils, greases, fats and most hydrocarbons.

Neoprene Rubber Features:

Neoprene Rubber, also known as neoprene polychloroprene, is an extremely versatile synthetic rubber with more than 75 years of proven performance.

In the automotive world, neoprene is used for many under-the-hood and underbody parts that require a reasonably priced, mid-performance polymer with a good all-around balance of performance properties.

Natural Rubber Features:

Natural rubber was originally derived from latex found in the sap of rubber trees. The purified form of natural rubber can also be produced synthetically. Natural rubber is an ideal polymer for dynamic or static engineering applications.

Caution: Natural rubber is not recommended for applications where the rubber part will be exposed to ozone, oils, or solvents.

PU/Polyurethane Rubber Features:

Polyurethane is an organic polymer. Polyurethanes are formed by reacting a polyol (an alcohol with more than two reactive hydroxyl groups per molecule) with a diisocyanate or a polymeric isocyanate in the presence of suitable catalysts and additives.

Polyurethane is a widely used compound due to its superior strength, tear and abrasion resistance. Polyurethane also provides excellent permeation resistance.

Features:

• Good hydraulic oil and gasoline resistance
• Resistant to pure aliphatic hydrocarbons (propane, butane, fuel)
• Resistance to mineral and silicone oils and greases
• Resistant to water, oxygen, ozone and aging
• Excellent tear and abrasion resistance
• Available in multiple types and compounds to meet performance and cost requirements

Certificates

We have certificates :ISO 9001:2015 , ISO 14001:2015 ,ISO 45001:2018 , IATF , FDA, REACH, ROHS, SGS etc.

ISO 9001.pdf

ISO 14001.pdf

ISO45001.pdf

IATF 16949.pdf

FKM-REACH,CANEC24027557863(SZP24-053599)-Final.pdf...

FKM-(ROHS),CANEC24027557817(SZP24-053599)-Final.pd...

FKM-FDA.pdf

Is this product not a 100% fit?

Our expertise extends far beyond this item. We likely have exactly what you need in our extensive catalog.

• Browse our complete range on the homepage.
• Or, contact us directly and tell us your requirements. We'll find the solution for you!

For color , we can make as customers' requirements .Below table is the colorful o rings we made.If you need colored o rings , you can give me pantone number .

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 ...etc.

Our Factory

Rui Chen Sealing Co., Ltd was built in 2006, now there are more than 200 staff. The company has two branches in Guangdong and Jiangxi, They are Dongguan Rui Chen Sealing Co., Ltd. and Shangrao Rui Chen Sealing Co., Ltd..

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

Ruichen always meets our customers' requirements. To make sure 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/T2828.1-20

Progress

The journey of our precision rubber seals is defined by controlled excellence. Our flowchart details each critical step—from formulation and molding and curing and finishing—with integrated Quality Control Gates at multiple stages. This ensures that every O-ring, gasket, or custom seal meets exact specifications for durability, compression set, and chemical resistance before final release and delivery.Cooperative partner

Ruichen company have cooperated with many superior customers as below , we have complete system and excellent productivity to serve for you

International exhibition

Why RUICHEN?

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

High Quality

We continue to manufacture high-quality products for all customers and pursue 100% customer satisfaction, which has become one of our core competencies.

Profession

We have rich experience in materials, products, and production and excellent international trade and language communication skills.

Best Services

From quoting, sampling, production, and shipping to after-sales, our sales will provide you with the best service so that you can rest assured completely.

10000+ Projects Delivered

Over 10K projects have been sent to our customers worldwide in recent years, and we have received countless positive comments.

Low Price

Our customers can obtain maximum profits through the ISO management system and intelligent manufacturing to reduce our costs continuously.

Massive Capacity

Our in-house facilities allow us to get your projects done fast. And thanks to our strong relationship with rapid materials partners, our capacity is not limited.

Fast Delivery

Unlimited capacity, experienced engineers, and a flexible production system allow us to create your seals and production parts in a short period.

1000+ Happy Customers

We aim to keep every customer happy with reliable quality, fast turnaround, and excellent services. We want all our new customers to become long-term customers.

FAQ

Q: 1 What kinds of materials can you provide?

A: NBR, EPDM, SILICONE,FKM(FKM),NEOPRENE(CR), HNBR ,NR, IIR, SBR, ACM, AEM,Fluorosilicone(FVMQ), FFKM etc.

Q: 2 How to select the raw compound for my application?

A: With years of experience working with a variety of material, we can help select the material that will best suit your needs while keeping material costs in mind.

Q: 3 How long can we get the quote?

A: If your information is complete, we will provide the quotation within 8 hours.

Q: 4 Can you provide samples? Is it free or extra?

A: Yes, we can provide samples for free. Freight can be negotiated.

Q: 5 What is the normal lead time for product orders?

A: If the stock generally takes 3-7 days, mold about 15-18 days, no mold about 25-30 days, depending on the product situation.

Q: 6 How to check the quality of the bulk order?

A: We have incoming inspection, control the quality of raw materials, process inspection,to ensure the quality of the production process, shipping 100% of the full inspection; automatic inspection machine full inspection, and according to customer needs before the mass production of pre-production samples.

Q: 7 What is your standard packing?

A: Plastic bag for inner packing .carton box for outer packing also be packed according to customer's requirements.

Q: 8 What's the payment term?

A: We accept T/T 30% deposit and 70% balance ,Paypal is also ok