FEP/PFA Encapsulated O-rings
FEP / PFA Encapsulated O-ring
An Encapsulated 'O'-Ring is an 'O'-Ring bound by a seamless and uniform FEP/PFA encapsulation, which encloses an elastomeric core, completely protecting it from the media. They combine the energising properties of an elastomeric 'O'-Ring with the resilience to extreme temperatures and hostile chemicals of FEP/PFA.
Why encapsulated O-ring ?
Standard elastomer O-rings often react with the chemicals in contact or atmospheric gases resulting into hardening or embrittlement due to inadequate resistance to solvent & working temperature while the encapsulated O-rings prevents direct contact of inner-core with medium & it's superior resin properties makes its suitable for any given application.
Benefits of Encapsulated 'O'-Rings and Seals
- Exceptional resistance to aggressive chemicals and gas permeability
- Low coefficient of friction allowing reduced wear of equipment
- Adaptive sealing force of an elastomeric 'O'-Ring
- Maintain standard MOC eliminating need of multiple MOC’s
- Resistant to compression set/cold flow issues of solid 'O'-Rings
- Withstanding severe CIP/SIP regimes
- Unsusceptible to corrosive surface
- 3-A Sanitary, USP Class VI ,FDA Regulation 21.CFR.177.1550, BSE/TSE , EU VO 1935/2004
Hardness:
85-90 Shore A for solid core Silicone
90-95 Shore A for solid core Viton®
75-80 Shore A for hollow core Silicone
Inner Core / Profile Options:
Temperature Range
FEP Encapsulation : -60°C to +205°C (-75°F to +400°F) Short durations to +260°C. (+500°F)
PFA Encapsulation : -60°C to +260°C (-75°F to +500°F) Short durations to +300°C. (+575°F)
Chemical Resistance, Restricted Permeability & Absorption
Typical chemicals with which ‘FEP/PFA’ resins are compatible
|
Abetic acid |
Bromine |
Diethyl carbonate |
|
Acetic acid |
N-Butyl amine |
Dimethyl ether |
|
Acetic anhydride |
Butyl acetate |
Dimethyl formamide |
|
Acetone |
Butyl methacrylate |
Di-isobutyl adipate |
|
Acetophenone |
Calcium chloride |
Dimethylformamide |
|
Acrylic anhydride |
Carbon Disulfide |
Dimethyl hydrazine |
|
Alkyl methacrylate |
Cetane |
Dioxane |
|
Ammonium chloride |
Chloroacetic Acid |
Ethyl acetate |
|
Aniline |
Chloroform |
Ethyl alcohol |
|
Aqua Regia |
Chlorosulfonic acid |
Ethyl ether |
|
Benzoyl chloride |
Chromic acid |
Ethyl hexanoate |
|
Benzoyl alcohol |
Cyclohexane |
Ethylene bromide |
|
Benzoyl Peroxide |
Cyclohexanone |
Ethylene glycol |
|
Borax |
Dibutyl phthalate |
Ferric chloride |
|
Boric acid |
Dibutyl sebacate |
Freons |
|
Ferric phosphate |
2-Nitro-butanol |
Potassium permanganate |
|
Fluronitrobenzene |
Nitromethane |
Pyridine |
|
Formaldehyde |
Nitrogen tetroxide |
Soap and detergents |
|
Formic acid |
2-nitro-a2-methyl |
Sodium fluoride |
|
Furane |
N-Octadecyl alcohol |
Sodium hydroxide< 80% |
|
Gasoline |
Diesel |
Sodium hypochlorite |
|
Hexacholoethane |
Nitric acid |
Sodium peroxide |
|
Hexane |
Nitrobenzene |
Solvents,aliphatic & aromatic2 |
|
Hydrochloride acid |
Oleum |
Stannous chloride |
|
Hydrocyanic acid |
Ozone |
Sulphur |
|
Hydrofluoric acid |
Perchlorethylene |
Sulphuric acid |
|
Hydrogen peroxide |
Pentachloro-Benzamide |
Tetrabromoethane |
|
Isopropyl alcohol |
Perfluoroxylene |
Tetrachloroethylene |
|
Isocyanates |
Phenol |
Trichloroacetic acid |
|
Lead compounds |
Phosphoric acid |
Trichlorethylene |
|
Mangesium chloride |
Phosphorus |
Tricresyl phosphate |
|
Mercury |
Pentachloride |
Triethanolanime |
|
Methyl ethyl ketone |
Phthalic acid |
Turpaentine |
|
Methacrylic acid |
Pinene |
Unleaded fuel |
|
Methanol |
Piperidene |
Vinyl methacrylate |
|
Methyl methacrylate |
Polyacrylonitrile |
Water |
|
Napthalene |
Potassium acetate |
Xylene |
|
Napthols |
Potassium hydroxide<50% |
Zinc chloride |
Note: Molten alkali metals, fluorine and several complex halogen compounds (chlorinetrifluroide) are incompatible with FEP/PFA resins.
Typical Application
- Pumps and valves
- Chemical reactor vessels
- Mechanical seals
- Cartridge filters
- Pressure vessels
- Heat exchangers
- Autoclaves
- Cryogenics
- Hose couplings
- Pipelines
- Gas compressors
- Access covers
- Reusable syringes
- High purity water
- Gas service
- Cartridges
- Glass flanges
- Low pressure, quick disconnect piping system
- Vacuum service
- Glass heat exchanger tube/ tube sheet seals
- Large diameter access covers
- Relief and emergency valves
- Mixers and vessels
- Spray paint
- Photoelectric work
- Tank cars and trucks [diffuser in tank]
- Filter elements
- Butterfly valves
- Air operated vents
- Scientific laboratory
- Lab reactors
- Sampling monitors [pesticide and personal impactor]
- Manways [t bolt hinge closure]
- Leak free bottles
- Petroleum mixers
- Industrial concrete sprayer
- Stainless steel gas line holders
- Flowmeter
- Chimney
- Bulkhead fitting
- Turbines
- Magnetic vacuum beaker vapors recovery adapters
- Strainers
- Pressure pots
- Home irrigation turf and auto control
Target Industry Sector
- Chemical Process
- Aircraft and Aerospace
- Gasoline and Chemical Transport
- Oil refineries
- Semi-conductor manufacture
- Photochemical
- Refrigeration Engineering
- Polymer Production
- Dye and Paint manufacture
- Paper and Pulp industry
- Food, Dairy and Beverage, Wine/Beer industry
- Oil Extraction (on shore and off shore)
- Cosmetics and Perfumery
- Automotive Components
- Scientific Glassware instruments
- Computer Chip Manufacturing Industry
