black nitrile rubber O ring seal NBR seals 140 mm x 3.5 mm
In our factory, there is more than 2000 sets different size O Ring tooling, good quality, quickly lead time. welcome OEM&ODM Order.
Advantages of O-Rings
O-rings offer their users quite a few advantages over other seal types. These include: flexibility, superior sealing, a wider range of uses, a wider range of sizes, low manufacturing costs and reusability.
What we mean by flexibility is that, even if the two surfaces it's joining are uneven or imperfectly matched, the O-rings can seal them. In addition, the seal they create, no matter the surface, is airtight. This is because O-rings on the shape of the cavity in which it resides, creating a vacuum.
As we mentioned, O-rings have a much wider range of use than other gasket seals. This is because they have a wider temperature range, a greater pressure tolerance (sometimes upwards of 100 bar), and because they can be made into an extremely wide range of sizes. Also, they do not generate critical torque under high pressure, meaning they put neither themselves nor their application at risk for structural damage.
Though they are superior to other gaskets, they are not more expensive than them. Instead, they are relatively cost-effective, thanks to the reasonably priced processes used to make them. On top of that, because they are usually made from rubber, metal or polymer materials, they can be used over and over again. This saves you money and puts less stress on the environment.
Types
Silicone O-Ring
Silicone lends its support to applications that require a material high in resistance to fast, wide temperature swings, extreme dry heat and UV weathering. Typically, they're used in the heating and medical industries. However, because silicone is so expensive, silicone O-rings are also sometimes used around earplugs and as necklace strings.
EPDM O-Ring
O-ring EPDM types are extremely resistant to alcohol, polar solvents like MEK. However, they do have poor resistance to petroleum oils and greases. Most often, they are used with solvents.
Neoprene O-Ring
Heat exchangers and chiller systems rely on neoprene O-rings to seal refrigerants, inside.
FKM O-Ring
FKM O-rings are useful in processes similar to other rubber O-rings, such as oil refining and chemical processing, because they are chemical resistant and have an extremely high process temperature limit.
Nitrile O-Ring
Of all the standard O-ring products, nitrile O-rings are the most popular. They are regarded for their oil and fuel resistance.
Clear O-Ring
Clear plastic O-rings are used routinely in hospitals and medical care centers, for IVs and other clear tubing. They are also common in food and beverage processing. Typically made from polyurethane or silicone, they can be ultra-clear or semi-clear, depending on your needs.
Metal O-Ring
Rubber O-rings are not universally temperature resistant without additives, which is why manufacturers sometimes also use metal O-rings or metal alloyed O-rings. Metal O-rings are generally stronger and more resistant to other stresses as well, like corrosion. They are used with applications that have a wider range process range, temperature range and/or corrosion range.
Metric O-Ring
Metric O-rings are O-rings with measurements specified using the metric system. Most O-rings outside of the US, including global O-rings, use metric O-ring measurements.
O-Ring Cord
O-ring cord is an O-ring product sold by the foot. With it, you can slice the material yourself, creating any O-ring size for a quick seal whenever you need it. They work best with large diameter, static applications.
| Technical Specification |
|
| Material |
NBR, NR, EPDM, FVMQ,HNBR,LSR,CR,Silicon, PU,SBR,IIR |
| Size/Color |
Customized |
| Hardness |
20-90 Shore A |
| Processing Way |
Compression, injection, injection transfer, extrusion, silicone liquid injection |
| Certificates |
SGS, RoHS. Reach |
| Packing |
PE plastic bags then to the carton / as customized |
| Payment |
T/T, Paypal, Western Union,Payoneer |
| MOQ |
5000 PCS |
| Shipping Method |
SEA,AIR,DHL,UPS,FEDEX,TNT, etc. |
| Delivery Time |
7 days for prototype tooling & samples, 14 days for production mold, 14-28 days for MOQ |
| Full Name of Material |
Nitrile Rubber (Buna-N/NBR)
Natural Rubber(NR)
Ethylene-propylene (EPR, EPDM)
Fluorocarbon (FKM/FPM)
Fluorosilicone(FVMQ)
Hydrogenated Nitrile (HNBR)
Liquid Silicone Rubber(LSR)
Neoprene Rubber(CR)
Silicone Rubber
Polyurethane(PU)
Styrene-butadiene Rubber (SBR)
Butyl Rubber(IIR) |
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