O Ring

Product Details:

NBR (Nitrile) is the most cost effective and commonly available O-ring material. Ideal for use as seals for pumps, drive belts, and other general engineering applications in the hydraulic and pneumatic industry. NBR is good for applications where the O-ring is exposed to fats, greases and animal or vegetable oils.

For applications requiring contact with diesel or temperatures higher than 120°C you may wish to consider FKM (Viton®) O-rings.

Recommended temperature range -20°C to +90°C

Chemical resistance

• Many hydrocarbons
• Fats
• Oils & Gasoline
• Petroleum based hydraulic fluid (HFD-R)

Not compatible with:

• Ozone
• Esters
• Retones
• Aldehydes
• Chlorinated
• Nitro Hydrocarbons

Additional Information:

• Item Code: NBROring
• Production Capacity: 5000
• Delivery Time: Ex-stock
• Packaging Details: Packet

Product Details:

Fluorosilicone O Rings are used as it has excellent fuel resistance and high temperature stability,it can be exposed to petroleum based oils and/or hydrocarbon fuels , Fluorosilicone O-Rings mechanical and physical properties are very similar to silicone rubber,it has poor hot air resistance when compared with silicone Rubber.

Fluorosilicone -FVMQ Rubber is bonding trifluoropropyl, methyl and vinyl rubber, its working temperature range is -70 to +200째C

Fluorosilicone O-Rings are available in metric and imperial international standards sizes such as as AS568 , DIN ISO 3601 and JIS sizes , thus providing the quality assurance required to meet the world's most demanding applications of O-Rings

Additional Information:

• Production Capacity: 50000
• Delivery Time: Ex stock

Product Details:

Silicone (VMQ) rubber contains methyl and vinyl groups attached to the main silicone chain. Silicone O-rings are characterised by excellent resistance to temperature extremes and thermal cycling. Silicone rubber compound does not impart odour or taste, which makes it suitable for many food and pharmaceutical applications.

Silicone rubber however, has poor mechanical properties as compared to other elastomers and for this reason silicone O-rings are generally not used in dynamic applications. It is not suitable for use with silicone O-ring lubrication, PTFE alternatives should be used instead.

Temperature Range:

• Up to 200°C (Intermittant)
• Down to -40°C
  • Dry heat
  • High - aniline point oils
  • Chlorinated DI - phenyls
  • Food processing applications
  • Excellent ozone resistance.
  • Water (Low temperature only)
  • Most Petroleum fluids
  • Ketones (MEK, Acetone)

Recommended temperature range:
-20°C to +180°C

Chemical resistance:
Not compatible with Most Petroleum fluids, Ketones (MEK, Acetone)

Additional Information:

• Item Code: Siliconoring
• Production Capacity: 5000
• Delivery Time: Ex-stock
• Packaging Details: Packet

Product Details:

Kwality Distributors offer PTFE O Ring.
PTFE O Ring is a high resilient O-ring which is unaffected by virtually all known acids, alkalis and solvents. It is tough, abrasion resistant and can withstand temperatures between -200°C to +250°C.

It also has resistance from weather, ozone and electrical.

For such properties PTFE O Ring is the ideal choice for use in aerospace, food, pharmaceuticals and telecommunications industries.

Temperature Range

• Up to 250°C (Intermittant)
• Down to -70°C
  • Excellent resistance to almost all chemicals
  • Not subject to ageing, so a near infinite shelf / storage life
  • Can be use in food, chemical and medical industries (among others)
  • Low elasticity (memory), making it unsuitable for dynamic applications unless energised by suitable material (I.E. rubber)
  • Low coefficient of friction
  • Low compression vacuum sealing flanges
  • High vacuum seals
  • High temperature steam

Recommended temperature range -60°C to +230°C

Chemical resistance
Not compatible with:
Low compression vacuum sealing flanges
High vacuum seals
High temperature steam

Additional Information:

• Item Code: PTFEOring
• Production Capacity: 5000
• Delivery Time: Ex-stock
• Packaging Details: Packet

Product Details:

EPDM rubber is a terpolymer of ethylene, propylene and diene monomers.
O-rings manufactured from EPDM exhibit an excellent resistance to weathering and ozone, water and steam.

General purpose EPDM O-rings are manufactured using a sulphur based curing system, these are suitable for use up to +120°C whereas peroxide cured
O-rings can be used up to +150°C. EPDM is particularly useful when sealing in brake systems that use fluids having a glycol (Dot 3 and 4) or silicone base (Dot 5).

Peroxide cured EPDM O-rings have a series of approvals including ACS, WRAS, KTW, EN 681-
Please contact us for further information.

 
Temperature Range:

• Standard EPDM up to 120°C (Intermittant)
• Peroxide Cured up to 150°C
• Down to -30°C
  • Hot water and steam up to 149°C with special compounds up to 260°C
  • Glycol based brake fluids (Dot 3 & 4) and silicone-based brake fluids (Dot 5) up to 149°C
  • Many organic and inorganic acids
  • alkalis
  • Phosphate-ester based hydraulic fluids (HFD-R)
  • Silicone oil and grease
  • Many polar solvents (alcohols, ketones, esters)
  • Ozone, aging and weather resistant
  • Mineral oil products (oils, greases and fuels)

Recommended temperature range -20°C to 120°C

Chemical resistance
Not compatible with:

Additional Information:

• Item Code: EPDMOring
• Production Capacity: 5000
• Delivery Time: Ex-stock
• Packaging Details: Packet

Product Details:

An encapsulated O-ring comprises an elastomer energising core, which has a seamless jacket made from fluoropolymer. The elastomeric core may be Fluorocarbon (Viton/FPM or Silicone). The jacket is made from Teflon® F.E.P. (Fluorinated - ethylemnbmbnne - propylene).

Additional Information:

• Item Code: FEPEncapsulatedORing
• Production Capacity: 50000
• Delivery Time: Ex-stock
• Packaging Details: Packet

Product Details:

We supply O Rings in different polymers.

• Viton O ring
• Silicon O ring
• Kalrez O ring
• Neoprene O ring
• Nitrile O ring
• EPDM O ring
  
  We also supply Butt Joint Orings of large dimensions etc.,

Additional Information:

• Item Code: RubberOring
• Production Capacity: 50000
• Delivery Time: Ex-Ready stock
• Packaging Details: Depends

Product Details:

Polyurethane O-rings are made of millable Polyurethane rubbers distinguished by two types; one is polyester urethane (AU), the other is polyether urethane (EU). AU type polyurethane o-rings have outstanding oil, fuel and solvent resistance but can be attacked by hydrolysis. 

EU type polyurethane O-rings are not attacked by hydrolysis and still offer a fuel and oil resistance comparable to low ACN ( 18~22% ACN) nitriles or HNBRs. Any type polyurethane O-rings has excellent wear resistance, high tensile strength and high elasticity in comparison with any other elastomers.

We also can offer any type thermoplastic urethane (TPU).

Service Temperature: The Service Temperature of PU is -40° C to 80° C

Additional Information:

• Item Code: PUoring
• Production Capacity: 50000
• Delivery Time: Ex-stock
• Packaging Details: Packet

Product Details:

​HNBR is a synthetic polyme​r.​It results from the hydrogenation of Nitrile rubber (NBR).
This gives it superior mechanical characteristics​: High strength, ​Greater thermal stability and helps reduce extrusion and wear. It can be used where temperatures are too high for standard Nitrile (NBR), but not sufficiently high to use fluorocarbon rubber (FFKM).

Temperature Range
Up to 190°C (Intermittent)
Down to -30°C

Recommended temperature range -30°C to +170°C

Chemical resistance​ is as below:​
Aliphatic hydrocarbons
Vegetable and animal fats and oils
HFA, HFB and HFC hydraulic fluids
Dilute acids, bases and salt solutions at moderate temperatures
Water up to 149°C (300°F)
Ozone, aging and weathering

Not compatible with:
Chlorinated hydrocarbons
Polar solvents (ketones, esters and ethers)
Strong acids

Additional Information:

• Item Code: HNBROring
• Production Capacity: 50000
• Delivery Time: Ex-stock
• Packaging Details: Packet

Product Details:

FKM (Viton) O rings have excellent chemical resistance and it can be used at temperature range between 15°C and 200°C. Viton O rings can be more expensive than NBR (Nitrile) O-rings.
FKM Viton material has found wide acceptance in the aircraft, automotive and chemical industries.

The terms FPM, FKM and Viton can lead to incorrect interpretations. These designations stand for one single base material: fluorocarbon rubber.

We can also supply specially compounded FKM O-rings meeting Norsok M710, FDA, USP Class VI, UL94 V0, EN549, Viton® A, B, G, GF, GLT, GFLT, ETP standards on special request. Please do contact us for further information.

Additional Information:

• Production Capacity: 50000
• Delivery Time: Ex-stock