O-Rings

Custom O-Rings Manufacturer in China
Supplier of Custom and Standard O-Rings for Every Sealing Application

Why Choose Xiamen Jinshun Sealing Technology

Our certificate

We have approved the Quality and Environment System ISO9001:2015 and ISO 14001:2015 of the raw materials that meet the ROHS, REACH, and PAHS, and most of our products have been approved by the NSF, FDA, LFGB, ACS, KTW-W270, WRAS, and UL.

Advanced Equipment

We have advanced production equipment and testing equipment such as automatic feeding machines, automatic packaging machines, injection molding machines, automatic feeding machines, automatic sorting machines, intelligent cutting machines, perform machines, etc.

Quality Control

After completion of manufacturing, the sealing ring needs to undergo appearance inspection, dimensional inspection, pressure test, media resistance test, air tightness, hardness, tensile strength, elongation, tearing performance, compression deformation under high and low temperatures, aging resistance, Water resistance, corrosion, and other inspection items to ensure that the quality meets standard requirements.

Quality customer service

Our dedicated team is always ready to answer your questions, provide you with detailed information about our products and guide you in your choice. We understand that every customer is unique.

What is O-Ring

O-rings are circular gaskets or seals characterized by a round cross-section, commonly employed to prevent fluid or gas leaks in various products, systems, or machinery across diverse industries. These essential components are favored for their low cost, straightforward production process, ease of installation, and resilience to pressure, finding extensive application in products such as automobiles, engines, rockets, and aircraft within the aerospace industry. O-rings are available in a variety of materials, each chosen based on specific operating conditions, encompassing factors like temperature, chemical exposure, and abrasion resistance.

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Benefits of O-Ring

Oil Resistant

When sealing oil hoses and passages, you may want to use nitrile O-rings. They offer excellent resistance to oil. They won't damage or degrade. Even when directly exposed to oil over an extended period, nitrile O-rings will continue to seal the hose or passage with which they are used.

Heat Resistant

You don't have to worry about heat damaging nitrile O-rings. As an elastomer, nitrile can withstand hot temperatures. Some nitrile O-rings, in fact, can withstand temperatures of up to 135 degrees Celsius. For sealing applications in which heat is a concern, you may want to choose nitrile O-rings for their heat-resistant properties.

Readily Available

Nitrile O-rings are readily available. They are one of the most common types of O-rings. More O-rings are made of nitrile than any other elastomer. With their widespread, nitrile O-rings are inexpensive and easy to find, thus making them a popular choice among businesses.

Supports Compounding

Nitrile O-rings can be compounded. When compounded, the properties of nitrile O-rings will change. You can use compounding to increase their resistance to sunlight, for example. By default, nitrile O-rings boast a low level of protection against the sun's ultraviolet (UV) rays. Compounding, though, will increase their UV protection. If you're planning to use them outdoors where they will be exposed to the sun, compounding can extend the life of your nitrile O-rings.

Chemical Resistant

Another benefit of nitrile O-rings is chemical resistance. They are highly resistant to chemicals. Like all O-rings, nitrile O-rings are typically used around the mating surfaces of hoses. These hoses may carry chemicals, such as fuel, oil or coolant. While chemicals may degrade other types of O-rings, they won't interfere with the function of nitrile O-rings. Nitrile O-rings will continue to seal the hose while preventing the chemical from leaking out of the hose.

Strong and Durable

You can rest assured knowing that nitrile O-rings are strong and durable. When exposed to heat and/or pressure, they will expand. As the heat and/or pressure goes away, they will contract. Under normal operations, nitrile O-rings will repeat these cycles without succumbing to damage.

What are the Applications of O-Ring

Transportation
In industries like passenger automotive, heavy-duty trucking, and aerospace, severe conditions call for high-performance products. Chemical exposure, extreme temperatures and vibration are all factors that affect elastomer selection for O-Rings. Custom compounds have been produced to meet strict OEM and Tier 1 specifications and are continually refined to adhere to biofuel and emissions requirements.

Medical
In the medical field syringes, pumps, filtration and connectors require speciality FDA-grade O-Rings.

Oil, Gas & Industrial
Valves, gas pumps, fittings, dispensers and storage tanks need sealing solutions that can withstand extreme temperatures, noxious chemicals, and high compression. Speciality compounds like peroxide and triazine-cured perfluoroelastomers assure heat and chemical resistance.

Electronics
Semiconductor processing and dust protection in consumer electronics call for O-rings to be manufactured in clean environments. Particulate and contaminant-free O-rings are available in a wide range of compounds.

Food & Beverage
Speciality 3A sanitary, NSF-61 and water service O-Rings and seals are ideal for the food processing, beverage dispensing and water filtration markets.

Types of O-Ring

Nitrile (NBR) O-rings

Commonly used in hydraulic systems, automotive applications, and as general-purpose seals. Resistant to oil, fuel, and water, making them ideal for sealing applications involving these fluids.

Viton (FKM) O-rings

Suitable for high-temperature and chemically aggressive environments.Used in aerospace, chemical processing, and applications involving exposure to fuels and chemicals.

Silicone O-rings

Resistant to extreme temperatures, both high and low. Commonly used in medical devices, food processing, and where flexibility at low temperatures is required.

EPDM (Ethylene Propylene Diene Monomer) O-rings

Excellent resistance to weathering, ozone, and UV exposure. Often used in outdoor applications, automotive cooling systems, and in the plumbing industry.

Neoprene O-rings

Known for their oil resistance and ability to maintain flexibility over a wide temperature range.Used in refrigeration systems, HVAC, and as sealing elements in hydraulic and pneumatic systems.

PTFE (Polytetrafluoroethylene) O-rings

Highly chemical-resistant and suitable for extreme temperatures.Commonly used in the pharmaceutical, chemical, and food processing industries.

Polyurethane O-rings

Known for their abrasion resistance and high load-bearing capacity.Used in heavy machinery, hydraulic systems, and pneumatic applications.

Fluorosilicone O-rings

Combines the properties of silicone and fluorocarbon elastomers.Used in aerospace and automotive applications where resistance to fuels and lubricants is needed.

How do O-ring seals work?

Whether sold individually, in large wholesale batches or - as is increasingly common - as part of a highly flexible range of o-ring kits, the basic form and role of o-rings are generally the same across the board. Their name, as implied, simply refers to a classic doughnut or torus shape, and they exist purely to create a better, more leak-proof seal between two other components, with the aim usually being to prevent the unwanted escape of gases or liquids. In this sense, they're effectively a type of gasket - the main difference being that o-rings are more commonly used in very high-pressure environments, where a normal cork, paper or rubber gasket would likely be prone to failure.

Understand The Different Types Of O-Ring Materials

Polyurethane

Polyurethane O-rings are known for their toughness and resistance to abrasion. The material is used to make everything from foam sponges to spandex. Polyurethane seals are perfect for applications that need a durable rubber that can withstand challenging environments, high impacts and heavy loads. It does not, however, have excellent heat resistance so this needs to be taken into account.

Neoprene

Neoprene O-rings are commonly used to seal refrigerators and air-conditioners. This material is resistant to weather, combustion, water, chemicals, fluids and gases, making it one of the more versatile and widely used materials for manufacturing O-rings. Some neoprene products, however, contain lead-based agents, making them extremely hazardous to human health.

Nitrile (Bruna, NBR)

Nitrile is an economic material that is widely used because of its resistance to abrasions and tears. It is best suited as a general-purpose seal for petroleum-based oils and fuel, water, some hydraulic fluids and dynamic applications. Nitrile works better in applications that have limited temperature requirements and should not be used with brake fluids or ozone.

Ethylene-Propylene Rubber (EPR, EPDM)

In contrast to Nitrile, EPR O-rings have a high resistance to ozone and can be used with various hydraulic fluids as well as brake fluids, steam, silicone oils and alcohol. EPR O-rings are even used in the aerospace industry's hydraulic pumps. They are, however, very susceptible to wear and tear so avoid mineral oil products and hydrocarbon fluids with these O-rings.

Fluorocarbon (Vikton, FKM)

Fluorocarbon is a versatile and widely used material with a high resistance to swelling, permeation, high temperatures and chemicals. These O-rings are used in many different automotive, appliance and chemical processing industries. The only applications they cannot be used in are ones that have very low temperatures and use ketones or amines.

How to Choose an O-Ring

1. PSI Rating

The pounds per square inch (PSI) rating of an O-ring refers to how much pressure it can withstand without leaking. All O-rings are used in sealing applications. They are used to seal the mating surfaces of pipes, hoses and other passages that carry pressurised substances. When choosing O-rings, you'll need to make sure that it has a high enough PSI rating to protect against leaks.

2. Internal Diameter

You should consider the internal diameter when choosing O-rings. Internal diameter is the distance between the two widest points of an O-ring. It essentially reflects the size of an O-ring. The internal diameter of an O-ring must accommodate the passages with which it's used. If you plan on using an O-ring to seal a pipe, for instance, the internal diameter must be roughly the same size as the pipe. If it's too big or too small, it won't fit-at least not without leaking.

3. Cross Section

In addition to the internal diameter, you should check the cross-section size when choosing O-rings. What is the cross-section exactly? The cross-section of an O-ring refers to its thickness. To measure the cross-section of an O-ring, you can turn it on its side and measure the O-ring's thickness. A larger cross-section will typically offer greater protection against leaks. With that said, the cross-section must still accommodate passages with which it's used. You'll need to consider the cross-section when choosing O-rings to ensure they fit.

4. Material

You can find O-rings made of different materials. Some of them are made of rubber. Other O-rings are made of more advanced materials like polyethene or thermoplastic. Different materials, of course, have different properties. They can all protect fluids and gases from leaks. Nonetheless, their properties vary. When choosing O-rings, consider the material and whether it's suitable for your sealing application.

5. Hardness

Don't forget to consider the hardness when choosing O-rings. Hardness is usually measured with a Shore A Durometer. A hardness rating of 40 indicates the O-ring is relatively soft, whereas a hardness rating of 90 indicates the O-ring is relatively hard.

Process of O-Ring

STEP 1: O Rings Moulding
The first step in the O Ring manufacturing process is selecting the correct tools for moulding. The correct tools are dependent on the size of the O Ring that is being manufactured. Smaller sizes are typically stored in a computerised system, with tools for larger O Rings stored in racking. Each O Ring is comprised of two halves, the top and bottom.

Step 2: Milling
Correct material selection is key to seal performance. Elastomers derive their performance characteristics from the ingredients and additives that are in them. Fillers. Additives and other ingredients are mixed into the elastomer material using a milling machine.

Step 3: Extrusion
The elastomer material arrives at the next stage as a sheet, which is cut into strips and inserted into an extruder. Once inside, the material is heated up to reduce its viscosity and forced through a die, which produces lengths of cord. The size of the die aperture is carefully selected based on the finished diameter of the O Ring that is required.

Step 4: Moulding
During the moulding stage, the cord is cut to size and placed into one-half of the heated mould tools, which are fixed to the two platens of the press. When the two halves of the tool close, the elastomer material is moulded into an O Ring shape. It is left in the press for a short length of time to start the curing process. When the press opens, the O Ring is carefully removed from the mould. This technique of manufacturing O-rings is called compression moulding. Larger O Rings, up to two and a half metres, are precision moulded on one of Europe's largest moulding presses at the facility.

Step 5: Flash
Once moulded, the O Rings often have excess material around the sides, where the two halves of the mould meet. This is known as flash. In the next production, called finishing, this flash is removed in a number of ways to produce a perfectly round O Ring Drumming. The O Rings are placed in a drum of rotating stones, which rub the excess flash off.

Step 6: Buffing
Larger O Rings are placed under a buffing wheel. The abrasive action rubs the flash off.

Step 7: Cyro
Small O Rings that are too delicate for any of the other finishing methods are placed under a drum. This rotates within a cryogenic environment. Liquid nitrogen cools the elastomer O Rings down until the flash is brittle and can be removed by shot blasting with grit.

Step 8: Curing
The De-flashed O Rings are placed in ovens to complete the curing process. The length of time.

What is the Standard for O-Ring Size?

AS 568 (also AS 568-A)
AS stands for 'Aerospace Standard' and is often described as 'American Standard' because the US Society of Automotive Engineers (SAE) established the AS568. AS 568, or more specifically AS 568-A, is probably the most widely used standard for O-ring sizes worldwide and is quite recognisable because of the O-ring thicknesses such as 1.78mm, 2.62mm, 3.53mm, 5.33mm, 6.99mm.

ISO 3601-1
ISO has adopted the dimensions from AS568 in the ISO3601 standard. The standard consists of 4 sections. Section 1 (ISO 3601-1) describes the sizes. The differences from AS568 are, for example, in Section 3 (ISO 3601-3) and deal with tolerance and surface quality.

DIN 3771
DIN stands for‘Deutsches Institut für Normung’.The DIN 3771 is an old standard that is less commonly specified but can often be found on older drawings. The O-ring sizes can still be frequently encountered, even outside Germany. Unlike many other O-ring standards, DIN 3771 does not use any additional numbering or code per size.

BS 1806 and BS 4518
BS stands for British Standard. There are two BS standards for O-ring sizes: BS 1806 and BS 4518 O-ring sizes according to the BS 1806 standard are largely in line with ISO 3601-1. The BS 4518 standard is mainly used within the UK.

French R
The French R standard overlaps with ISO3601 and AS568, but also has some typical dimensions within its range. The type numbering is identified by the R, such as R12.

JIS B 2401
The JIS standard stands for Japanese Industrial Standard, in which B 2401 is the Japanese O-ring standard. The O-ring sizes are identified by the addition of the letters P, G, S and V which are designated for different applications: P (dynamic), G (static), S (special) and V (vacuum).

Metric sizes (non-standardised)
Metric sizes are not standardised to the size itself. They are usually rounded off to millimetre dimensions or defined to half-millimetre accuracy.

Maintenance Tips for O-Ring

Do use compressed air or a soft brush

Frequently cleaning the rings is a vital part of maintenance. This is especially important for O-rings that provide a seal to machines. If you find any debris, grit, or contamination, you should clean it using a soft brush to avoid abrasions.

Do lubricate regularly

O-rings need substantial lubrication to function correctly. If not, cracks can occur and ultimately cause severe damage. This is especially significant for machines that require seals to be opened and closed. For this instance, you can use any silicone-based O-ring lubricant like WEICON Silicone Grease and apply the necessary amount.

Do be familiar with other maintenance products

Remember, there are various kinds of O-rings made for different purposes. They can be Neoprene, Viton, or NBR-based rings. What you need will determine the type of O-ring you should buy. Simplex offers O-rings made from various materials such as silicone, Viton, and nitrile rubber. Additionally, you may need products like adhesives and sealants while maintaining your O‑rings. Sealants block fluids between spaces, while adhesives bind two parts together.

Do store it properly

Knowing how to store O-rings is just as important as applying them. You should keep them in an airtight bag, away from sunlight. Using old O-rings can lead to severe consequences, so it is always better to be safe. Additionally, the rings could get brittle over time. If that happens, it is best to check out suppliers like Simplex for new ones.

Don't stretch out the O‑ring

It is crucial to apply O-rings carefully, as improper care can result in significant damage. Stretching the O-ring can cause detrimental effects such as abrasions, degradation, and flattening. These O-ring failures can lead to costly repairs, as they can also damage other components that you may need to replace.

Don't use tools with sharp edges

You should avoid using tools with pointy tips or sharp edges while working with O-rings. Sharp tools can easily damage the O-ring and affect its sealing capability. These tools must be handled with care and, depending on the application, can cause severe issues.

Don't expose the O-ring to extremely high or low-temperature environments

Exposing O-rings to extreme temperatures outside their ideal temperature range can cause major issues. The heat can degrade materials like rubber physically and chemically. Other reactions include hardening, swelling, and change in volume.

Don't expose the O-ring to chemicals

Chemical attacks and swells can occur if O-rings are exposed for a long time. Choosing the right O-ring material can help prevent these from happening while protecting it from degrading. Specific O-rings are compatible with certain chemicals, so researching this aspect is necessary.

O-Rings Factory in China

We are a major rubber sealing products with advanced research and development, manufacturing, and sales. We have approved the Quality and Environment System ISO9001:2015 and ISO 14001:2015. Our products are extensively applied to Food and Drinking Water, Sanitary and bathing products, electronic and electric appliances, hardware and machinery, and Auto parts, etc. We are professionally specialised in rubber O-rings, Y-seals, Shower gaskets, RO membrane seals, Silicone tubes, and other industries' customised rubber parts. To further increase the quality, all of the raw materials meet the ROHS, REACH, and PAHS, and most of our products have been approved by the NSF, FDA, LFGB, ACS, KTW-W270, WRAS, and UL.

Certificate

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FAQ

Q: What is an O-ring?

A: One might debate that the o-ring is considered a living fossil in terms of manufacturing components. The O-ring is the creation of J. O. Lundberg. In 1896, the Lundbergs received a patent on a circular-looped gasket. While it was invented in Sweden, the O-ring has slowly made its way across the Atlantic Ocean. By 1937, the first patent for an O-ring in the United States was granted and produced by Niels Christensen, a professional machinist. Despite their simple structure and the very basic nature of the role they perform, o-rings are still widely used today.
Despite the growing development of modern engineering and constant changes in manufacturing and component designs, o-rings Malaysia still kept more or less the same exact form and function. While some of the materials used in the manufacturing of o-rings have grown to evolve with technology over time, essentially o-rings remain a beautiful, direct and reliable solution to a problem that was first brought up for over a century ago.

Q: What is the Function of an O-ring Seal?

A: Either sold individually or in big wholesale batches, it is common for one to come across a highly versatile range of o-ring kits, and the basic form and role of o-rings are generally the same across the board. Their name, as hinted, refers to the shape of a classic doughnut or a torus shape. They exist solely to create a better, more leak-proof seal between two other components. Their aim is usually used to prevent the unwanted escape of gases or liquids. In this sense, they are effective as a kind of gasket. But the main difference is that o-rings are more commonly used in environments with very high pressure. Compared to a regular cork, gaskets made of paper or rubber are more prone to failure.

Q: What are O-rings made of?

A: O-rings are made up of many various materials; each material has its own set of unique properties. Here are some of the most common materials used in producing O-rings:-
Fluoroelastomer
Often used in applications where heat is a problem.
Resistant to heat.
Durable.
Long-lasting.
Silicone rubber.
Has a soft and spongy design.
Designed and used for the food industry.
Safe and non-toxic.
Ethylene propylene diene monomer.
Not suitable to be use with lubricants or fuels.
Offer strong resistance to moisture, steam, grease and silicone.
Thermoplastic polyurethane.
Has a high level of flexibility and strength.
Resistant to degradation.

Q: How are O-ring seals manufactured?

A: The o-ring manufacturing process is generally direct and straightforward
The specifics of any given o-ring design and production run are often taken into account required quality, quantity, application environment, cost-effectiveness, chemical and pressure compatibility, longevity and lubrication requirements.
O-ring manufacturer normally relies on techniques such as compression, transfer or injection moulding, machining, or extrusion.
High-performance materials used in the production of O-rings can vary from nitrile and silicone rubber to fluorocarbons and even metal.
The basic torus-shaped o-rings are familiar and available worldwide
Produced in other shapes (square-cut, x-shaped, quad rings, etc) for more specific applications as and when required.

Q: What are O-rings used for?

A: O-rings are very commonly found in pumps, cylinders, connectors and valves, helping to seal joints between separate parts and prevent leaking of fluids and gases. They're used with static, dynamic, hydraulic and pneumatic components, making them an especially versatile solution to a very widespread engineering issue.

Q: What are O-rings in English?

A: An O-ring, also known as a packing or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, forming a seal at the interface. While O-rings can be made of many different elastomers, some are widely used in a variety of applications. Nitrile Butadiene Rubber: Also known as NBR, this synthetic rubber copolymer provides superior resistance to chemicals, oils, and acids. It is puncture-resistant and functions at extremely low temperatures

Q: What is the principle of the O-ring?

A: To provide an effective seal, the O-ring's inside diameter (I.D.) must be smaller than the piston groove diameter, so that the O-ring is slightly stretched, fitting snugly in the groove. This stretch should be between 1%-5% with 2% as the ideal in most applications. A stretch greater than 5% is not recommended. Due to many applications, there is also a wide variety of O-ring material choices available. Nitrile (Buna), Neoprene, Ethylene Propylene (EPDM Rubber), Silicone, Fluorocarbon (Viton), and PTFE (Teflon) are among the most commonly used compounds for O-rings and seals.

Q: What is the difference between an O-ring and a seal?

A: One key difference between these two sealing components is their application range; oil seals have higher pressure resistance compared to O-rings, which makes them ideal for high-pressure environments like engine parts, while O-rings work well for lower-pressure assemblies like valves and pipes. Their versatility and reliability have led to nitrile 'O' rings being widely regarded as an excellent choice for general-purpose applications. Nitrile 'O' rings are reasonably resistant to petroleum oils, crude oil, water, gasoline, propane and some hydraulic fluids.

Q: Are O-rings a type of seal?

A: The O ring is a seal that is ring-shaped with a round cross-section, like a doughnut. They are basically rubber rings used as seals. O-rings are among the most widely used seals in machinery and equipment, as they are cheap, easy to produce, reliable and easy to fit.

Q: What is the O-ring used to prevent?

A: An O-ring seal is used to prevent the loss of a fluid or gas. The seal assembly consists of an elastomeric O-ring and a gland. An O-ring is a circular cross-section ring molded from rubber (as shown above). The gland - usually cut into metal or another rigid material - contains and supports the O-ring.

Q: What are the standard O-Ring sizes?

A: Our principal Precision Polymer Engineering (PPE) manufactures elastomer O-Rings that come in sizes ranging from 1.5mm (0.06″) to 2.5 metres (8ft) in outer diameter, and 0.8mm (0.03″) to 12mm (0.47″) in cross-section.

Q: Can you advise if an O-ring and gland design is appropriate?

A: Gland and O-ring designs that are very old and have been in place for many years should be reviewed. While there are many O-ring design software packages available, they don't always take into account many of the variables and peculiarities of actual customer gland designs. Some software can also introduce numerical rounding and truncating, resulting in calculation errors. We can typically do a more thorough analysis with our in-house calculation routines and can factor in temperature extremes and coefficients of thermal expansion of the mating gland and O-ring material to get a more detailed look at the designs. Our in-house calculation routines can perform ‘what-if?' calculations, and we can look at and recommend changes to gland design, O-ring dimensions, O-ring dimensional tolerance, or material recommendations.

Q: With typical fluids or gases that could interact with the O-ring, what would the best material be?

A: Parent industry standard materials specification or customer materials specifications will often define the material in sufficient detail. However, there are still questions that the industry standard or customer standard doesn't address in detail. Our extensive library of the chemical compatibility of our materials with various fluids and gases is our first point of reference. If our library information doesn't sufficiently answer the question, our laboratories can test to define the best elastomer material for the application.

Q: How does an O-ring form a seal?

A: In very basic terms, o-ring seals work by sitting in a groove or channel between two surfaces/components that are going to be mated or pushed together. The o-ring, generally made of some form of elastomer, sits in the joint between these two parts and becomes compressed in order to help form a tight seal. A basic design principle often used as the starting point for O-ring grooves is stretch. One of the reasons elastomers are ideal materials for O-rings is that their elastic properties allow the O-ring to stretch around hardware and return to the original shape while within the material's elastic deformation range.

Q: How do O-rings prevent leaks?

A: How Does an O-Ring Work? | Allied Metrics O-Rings & Seals, Inc.
An O-ring prevents leaks by creating a durable, moisture-resistant seal that locks pressurised gas and water inside a system. O-rings seal by being compressed between two joined fittings, preventing any air or outside moisture from entering the closed system.I will start by saying not all o-rings are created equal; different materials, different hardnesses, different curing processes, they're not just round, they're not just squishy and just to fill in a hole.

Q: Do O-rings stop leaks?

A: O-rings are one of the most common types of mechanical seals. Consisting of a ring-shaped piece of elastomeric material, they are placed around the mating surfaces of two parts. O-rings are designed to prevent leaks from around these mating surfacesSince it is possible to stretch the O-ring diameter by up to 5% and compress it by up to 3%, you can choose an alternative size: 305 x 5 mm (with only 1% stretch), or 310 x 5 mm (with only 0.6% compression).

Q: What is the standard size of O-rings?

A: O-Ring size is defined by inside diameter and cross-section (width) and is listed in both fractional and decimal dimensions with tolerances. The standards range in I.D.'s from. 74 mm to 658.88 mm and cross sections (widths) from 1.02 mm to 6.99 mm.Terminology note: Any o-ring can technically be called a gasket since they prevent the transfer of liquid and air, but while o-rings are a specific shape of gasket, any gasket cannot be called an o-ring.

Q: Why use Viton O-rings?

A: In comparison to nitrile, Viton™ has a larger operating temperature range, better resistance to degradation from exposure to weather and ozone and is more chemically resistant too. Choosing a Viton™ o-ring for the toughest jobs means it will last longer. Because they have corners, flat O-rings can be used in addition to round O-rings to seal off spaces where the former cannot. For instance, as flat O-rings have a bigger surface area and offer better coverage when screwed, they can be employed as a seal between an automobile's oil filter and oil housing.

Q: How many types of O-rings are there?

A: The different types of o-rings are nitrile (Buna-N), ethylene propylene rubber (EPR), fluorocarbon (Viton), neoprene, polyurethane, silicone, PTFE, FFKM, ethylene propylene (EPDM), and fluorosilicone. Below is a summary of the different commonly used o-ring materials and types.A 70 durometer NBR o-ring, typically by ASTM D2000 requirements, will stretch 250%. In practicality, most quality compounds will exceed that significantly. In the case of a 70 durometer EPDM, you're looking at a 200% stretch.

Q: What material is used for the O-ring?

A: O-rings are mechanical gaskets with a round cross-section. They are used to prevent gas and fluid leaks in static and dynamic applications and are manufactured from various types of elastomers. Some of our common types of O-ring materials include PTFE, Nitrile (Buna), Neoprene, EPDM Rubber and Fluorocarbon (Viton). As they are made of flexible rubber material, these accessories are highly versatile and have the capacity to deform themselves so as to suit any shape found in the cavity that is near the clearance gap.

As one of the most professional o-rings manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized o-rings at competitive price from our factory.

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