What are Viton O-rings for?
Viton® O-Rings
Viton seals also feature some chemical resistance and are ideal in pumps used for agricultural, pest control, disinfection, mold remediation, and lawn care sprayers because of its resistance to hydrocarbons found in some of the compounds used.
Which is better Viton or silicone?
Both materials are well suited for use in the -30 to 205°C range. Silicone has an advantage in lower temperatures and Silicone has an advantage in higher temperatures. Marco offers specific compound formulations extending these ranges even futher as can be seen in the following compound comparison chart.
What is the difference between Viton A and B?
Viton® B has better resistance and retains flexibility better after dry heat aging than Viton® A. It is recommended with good mechanical properties. Viton® B is specified by the Fluid Sealing Association to resist sulfur dioxide in power generating factory systems.
How long do Viton gaskets last?
O-Ring Shelf Life Recommendation per AS5316
| Elastomer Family | ASTM | Shelf Life |
|---|---|---|
| Fluorocarbon (Viton) | FKM | Unlimited |
| Fluorosilicone | FVMQ | Unlimited |
| Hydrogenated Nitrile, HNBR or HSN | HNBR | 15 Years |
| Nitrile (Buna-N or NBR) | NBR | 15 Years |
What is another name for Viton?
As mentioned, Viton is DuPont’s (now Chemours) brand name for fluorocarbon rubber. This is a synthetic rubber and fluoropolymer elastomer and is commonly used for O-rings and other molded or extruded parts.
Are Viton seals better?
While both Viton and Buna seals both serve as great sealing options at moderate temperatures, Viton is far superior to Buna for high temperature applications. Viton seals provide an indefinite seal for temperatures up to 400°F, and for temperatures up to 600°F they offer an excellent seal for more than 48 hours.
Is Viton A rubber or plastic?
How many types of Viton are there?
There are four major families of Viton™ fluoroelastomers: A, B, F, and ETP, each with its own unique performance characteristics. A major differentiator between the Viton™ product families is fluid resistance, which is based on the polymer’s fluorine level.
Which is better Viton or PTFE?
Viton vs Teflon (PTFE) – Viton offers a greater temperature resistance but falls short of Teflons(PTFE) chemical resistance. Also, Teflon is slightly less thermally resistant but offers much more in the way of non-adhesive properties.
What colour is Viton seals?
brownish colour
Identify Oil Seal Material
Nitrile or NBR is black in colour, whereas, Viton or FKM is usually a brownish colour.
Which is better Viton or EPDM?
With a low permeability to a wide range of range of substances, Viton resists degradation and corrosion from more chemicals and fluids than EPDM, but EPDM performs much better in low temperatures than Viton and also tends to be cheaper.
What is Viton also called?
Viton™ is Viton™
Dupont (now Chemours) did a great job marketing their FKM polymer Viton™, as they did with Neoprene™, which became the generic name for polychloroprene. Now, people have also begun to use Viton™ as the generic name for any FKM polymer.
What color are Viton gaskets?
Most gaskets made of Viton® are black, white, or brown in color; however, custom compounding can create specialized colors.
Is Viton a type of silicone?
Viton® is a specific brand of Fluorocarbon (FKM) and is a registered trademark of The Chemours Company. This synthetic rubber polymer is commonly used in o-ring applications for aircraft engines, automotive fuel handling systems and other applications requiring high temperatures and low compression set.
What is the difference between Viton and EPDM?
Viton® rubber is a fluoro elastomer, whereas epdm rubber is ethylene-propylene-diene-monomer. The primary differences between Viton® and EPDM is in their chemical resistance and temperature ranges. Both have different properties and applications for general industrial use.
Is Viton plastic or rubber?
synthetic rubber
As mentioned, Viton is DuPont’s (now Chemours) brand name for fluorocarbon rubber. This is a synthetic rubber and fluoropolymer elastomer and is commonly used for O-rings and other molded or extruded parts.
What color is Viton O-rings?
O-Ring Colors
| O-Ring Color | O-Ring Material |
|---|---|
| Blue | Fluorosilicone |
| Brown | Viton® |
| Clear | Urethane |
| Green | Viton® | HSN/HNBR |
Does color of O-ring matter?
Across the rubber industry, O-rings are not color coded. Many customers adopt a method of color-coding to help prevent mixed seal inventory. Seal materials cannot be conclusively identified by color.
What type of rubber is Viton?
fluoropolymer elastomer
How do I identify Viton rubber?
However, by looking at the material, we can identify Viton by its appearance of green-brown colour where nitrile rubber has a yellow colour.
Is Viton the same as Teflon?
Are Viton O-rings black?
Product Description. This Viton O-ring is black in color, round in shape, has a durometer (hardness) of 75A, and is designed for use in a wide variety of sealing applications. Viton has excellent heat, fuel, and chemical resistance.
What color is Viton O rings?
How tight should an o-ring be?
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.