Manways, Manhole, Tank Lid Gasket

Manways, Manhole, Tank Lid Gasket

The real secret to the success of the manway gasket lies in our Encapsulated O-ring a unique solution for sealing the tank car manway: instead of squeezing a flat gasket to achieve a seal, it uses an O-ring positioned between the nozzle wall and the cover sheer. This creates consistently uniform compression on the seal. Additional pressure from within only works to the advantage of the system, actually enhancing the sealing force.

It is fundamentally different from all other designs. Our Encapsulated O-ring design centrally applies force which distributes equally around the cover. There are no troublesome eye-bolts, no unequal loading. The operator can create a perfect seal in one quick operation with simple hand tools. No re-torquing is needed. No special sockets or tools.

Our encapsulated O-ring using Teflon® polytetrafluoroethylene, which can withstand a large number of operational cycles, saving replacement and stocking costs. The O-ring material itself is highly resistant to a broad range of chemicals, so that in most cases, only one model will be required.

Benefits
  • Lasts for many repeated operational cycles
  • Saves on replacements
  • Reduce stocking cost
  • Compatible with broad range of chemicals
  • Only one type of seal required
  • O-rings will not fall into tank
  • O-ring eliminates cargo leakage non-accidental release
  • 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


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.

  • Railcar Manway
  • Tankcar Manway
  • Manhole
  • ISO Tanker
  • Pressure vessel