O ring

O ring

Brand
R.S.L.
Model
O-ring
Minimum
1000pieces
Material
EPDM、NBR、NR、SBR、VITON、Silicone Rubber
Payment
T/T or L/C
Price
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Company Advantages
1. large O rings uses o ring gasket suppliers , thus the body's structure is optimized. It is easy to install our products
2. Foshan Rong Sheng Long (R.S.L.) Rubber Seals Co., Ltd. strives to become a green and efficient large O rings company. OEM service is available for our products
3. In a flock of o ring gasket suppliers , large O rings has many merits of [拓展关键词 and so on. Our products are 100% tested
4. large O rings has stable performance, o ring gasket suppliers and a wide range of applications. The material of our products is rubber and they are environmentally friendly
    product description

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O-ring is a ring-shaped mechanical gasket, it is a ring of elastomers, cross-section is common for the circular, usually fixed in a groove, the assembly process will be two or more components Compressed, thus producing a sealed interface.

O-rings are the most common mechanical design for sealing because of their low cost, simple manufacturing, reliable operation and simple installation requirements. O-rings withstand dozens of pascal (thousand pounds) pressure. O-rings can be used in static applications and can also be used in dynamic applications where relative movement between components, such as rotating the shaft of the pump and the hydraulic cylinder piston.


    How to describe an O-ring

Custom Orings and Metric Orings are typically described by their Internal Diameter (ID), Radial Cross Section (CS), Rubber Material from which they are constructed plus the material Hardness on a Shore A scale .


We offer the following six (6) standard rubber materials in a range of durometer (Shore A) hardnesses to satisfy practically any service condition:Viton® / FKM: Fluorocarbon (Viton®) exhibits exceptional resistance to chemicals, oils, temperature extremes (-13°F to +446°F), low compression set, low gas permeability and excellent aging characteristics. Applications include: aircraft engines, automotive fuel handling systems, and chemical processing industries. FKM is also suitable for high vacuum applications. It is not recommended for exposure to ketones, alkalis, and Skydrol® fluids. Custom compounds are available with improved chemical and low temperature resistance. 


Nitrile / NBR: Nitrile (Buna-N) is the most widely used elastomer due to its excellent resistance to petroleum products, operating temperature range (-40°F to +257°F) and one of the best performance-to-cost values. It's an ideal material for aerospace, automotive, propane and natural gas applications. Special Hydrogenated Nitrile (HNBR) compounds can improve resistance to direct ozone, sunlight, and weather exposure while increasing temperature range to +300°F.


Ethylene-Propylene / EPDM: EPDM has outstanding resistance to heat, water and steam, alkali, mild acidic and oxygenated solvents, ozone, and sunlight (-40ºF to +275ºF); but it is not recommended for gasoline, petroleum oil and grease, and hydrocarbon environments. This popular rubber compound is usually the first choice for low torque drive belt applications. 


Fluorosilicone / FVMQ: Fluorosilicone (-75º to +400ºF) combines the good high and low temperature stability of silicones with the fuel, oil, and solvent resistance of fluorocarbons. FVMQ is unparalleled for aerospace fuel systems, auto fuel emission control systems and to meet or exceed government, military, aerospace, automotive, industrial and commercial specifications. However, due to relatively low tear strength, high friction and limited abrasion resistance of these materials, they are generally not used in dynamic applications. They are also not recommended for exposure to brake fluids, hydrazine, or ketones. 


Silicone / VMQ: In the Silicone family, you will find compounds which are superior as static seals in extreme temperature conditions. Standard compounds handle operating temperatures -85º to +400ºF. Silicone compounds are popular in food and medical applications because they are very clean and do not impart odor or taste. Special Phenyl silicones can be used down to -148°F. 


Neoprene® / CR: Neoprene (-40º to +250ºF) is reasonably priced and features good resistance to petroleum oils, ozone, sunlight and oxygen aging, relatively low compression set, good resilience and outstanding physical toughness. It is the preferred sealing material for the refrigeration industry because of its resistance to ammonia and Freon®. 


Let us know if you require materials to meet the following standards; UL, WRAS, ASTM, NSF-61. We have many special compounds that can meet the specification you are looking for.


    What is an O-Ring

An O-ring is a torus, or doughnut-shaped ring, generally molded from an elastomer, although O-rings are also made from PTFE and other thermoplastic materials, as well as metals,both hollow and solid.

O-rings are used primarily for sealing. O-rings are also used as light-duty, mechanical drive belts.


    What is an O-Ring Seal

An O-ring seal is used to prevent the loss of afluid or gas. The seal assembly consists of an elastomer O-ring and a gland.
An O-ring is a circular cross-section ring molded from rubber
The gland — usually cut into metal or another rigid material — contains and supports the O-ring.The combination of these two elements; O-ring and gland — constitute the classic O-ring seal assembly.


    Advantages of O-Rings

•  They seal over a wide range of pressure, temperature and tolerance.
•  Ease of service, no smearing or retightening.
•  No critical torque on tightening, therefore unlikely to cause structural damage.
•  O-rings normally require very little room andare light in weight.
•  In many cases an O-ring can be reused, an advantage over non-elastic flat seals and crush-type gaskets.
•  The duration of life in the correct application corresponds to the normal aging period of the O-ring material.
•  O-ring failure is normally gradual and easily identified.
•  Where differing amounts of compression effect the seal function (as with flat gaskets), an O-ring is not effected because metal to metal contact is generally allowed for.
•  They are cost-effective.


O-rings are the most commonly used sealing products. They are very effective as well as being relatively inexpensive and reliable.
O-rings are designed to offer sealing in both static and dynamic applications.
A wide range of elastomers are available including Nitrile (NBR), Hydrogenated Nitrile (HNBR), Silicone (VMQ), Polyurethane (PU), Perfluoroelastomer (FFKM), Viton®/ FKM and PTFE. As well as standard grades,many derivatives are also available. 


Property

Buna-N

Viton®

Silicone

PTFE

Kalrez®

Part No. Prefix

B-

V-

S-

T-

K-

Tear Resistance

Good

Good

Poor

Excellent

Good

Abrasive Resistance

Good

Good

Poor

Excellent

Good

Ozone Resistance

Poor

Excellent

Excellent

Good

Excellent

Weather Resistance

Fair

Excellent

Excellent

Good

Excellent

Heat Resistance

Fair

Excellent

Excellent

Good

Excellent

Chemical Resistance

Fair

Excellent

Good

Excellent

Excellent

Oil Resistance

Poor

Excellent

Poor

Good

Excellent

Acid Resistance

Fair

Excellent

Good

Excellent

Excellent

Alkali Resistance

Good

Good

Fair

Excellent

Excellent

Steam Resistance

Fair

Fair

Poor

Good

Excellent

Minimum Usable Temp

-65 deg F
-54 deg C

-65 deg F
-54 deg C

-120 deg F
-85 Deg C

-110 deg F
-79 deg C

-35 deg F
-37 deg C

Maximum Usable Temp

300 deg F
150 deg C

500 deg F
260 deg C

450 deg F
232 deg C

500 deg F
260 deg C

550 deg F
288 deg C

Color

Black

Black

Red

White

Black

Impermeability

Fair

Good

Poor

Excellent

Good

Tensile Strength

Good

Good

Poor

Excellent

Good


O-rings are common seals used in many manufacturing industries. Because of their cost, simple production, easy installation and pressure resistance, they have found their way into a lot of common products, such as automobiles and engines. The aerospace industry has also put o-rings to good use in many types of rockets. 


O-rings function in so many applications because there is a diverse scope of material used in their fabrication. Many are made from rubber, or, more specifically, elastic polymers, or elastomers. These polymers are cured, often through vulcanization, resulting in a strong, durable and more elastic rubber. Different materials have different properties, though, with some being more elastic and others being more tear resistant, in addition to other qualities. 


Because of the range of materials available, it can be difficult to determine which is appropriate for a project. While designers and contractors can help make a decision, there are many efficiencies and deficiencies that can guide or influence that decision as well. 


Rong Sheng Long Rubber Seals-Find O Ring | Viton O Rings-1


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Type

[ M ]Material

[ H ] Hardness (JIS Hs)

Color

Operating Temperature Range

Applications

Feature

NSA

Nitrile Rubber

70±5

Black

-30~100°C

Mineral Oil Resistant

Most representative material with superior oil / abrasion 

resistance and heat stability.

NSB

Nitrile Rubber

90±5

Black

-25~100°C

NSSW

Silicon Rubber

50±5

Milky White

-50~200°C

Heat Resistant

Having excellent high and low temperature resistances, this material has the widest range of operating temperatures among synthetic rubbers.It is suitable for food-related applications.

NSS

Silicon Rubber

70±5

Dark Blue[ ! ]

-50~200°C

Heat Resistant

NSF

Fluoro Rubber

70±5

Black

-15~200°C

Best in oil / chemical resistance and heat stability as synthetic rubber. 

Suitable for a wide 

range of applications.

NSFH

Fluoro Rubber

90±5

Black

-15~200°C

Heat Resistant

[ ! ]NSS is colored with dark blue next to black.



Company Features
1. Foshan Rong Sheng Long (R.S.L.) Rubber Seals Co., Ltd. has established raw material inspection criterion.
2. We adhere to the principle of integrity management and quality service. Contact!
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