Chemical Resistance

Adhered with materials such as steel pipe, as a rule of life due to corrosion is determined by the degree of retting. Corrosive effects combine with mechanical wear of pipe wall thickness tapering to and stresses over time as a result of the pipe causes the fracture or rupture. Corrosion as a result of the leakage of small holes in some cases there may be local. Severity of corrosion of pipe materials environment and depend on the fluid being transported through the pipe. What would be effective for corrosive environments and withstand corrosion in certain media time is not yet precisely determined. Therefore, the dirty water pipes depending on the type of material can withstand corrosive environments, how long it is difficult to predict in advance.Stuck pipe in plastic materials of the above factors affecting service life is somewhat different. Iron and steel pipes, plastic pipes for corrosive environments listed do not make any impact on. Chemical resistance of plastics directly depends on polymer degradation. As known to all the organic materials such as plastics decays over time.This degradation process UV radiation, such as thermal oxidation and water absorption is affected by events.  To prevent or delay degradation carbon black, stabilizers, anti-oxidizing agents and pigments called participate in the refinery environment.

D: RESISTANT

'D' symbol shown with plastic pipes and fittings the internal pressure is exerted from the outside in the absence of any mechanical action and when used with the indicated concentrations of chemicals in a change in the properties do not occur in a negative way.

SD :RESTRICTED RESISTANT

'SD' symbol shown with plastic pipes and fittings the internal pressure is exerted from the outside in the absence of any mechanical action and the indicated concentrations of the chemical substances, some corrosion may occur when used. Therefore the pipes marked with SD acceptable in applications where a small amount of corrosion can be used.

DZ  : NON-DURABLE

'DZ' denoted by the symbol plastic pipes and fittings pressurized or unpressurized applications because they are not used very much affected by chemical substances.

ABBREVIATIONS

SÜSP : Saturated solution prepared in suspension                                 ÇAL.ÇÖZ : Working Solution
DOY.ÇÖZ : Saturated Aqueous Solution                                                    D: Resistant
TS.S : Technical purity liquid                                                                    SD : Restricted Resistant
TS.G : Technical Purity Gas                                                                        DZ: Nondurable


CHEMICAL NAMECONCENTRATION%T(OC)LDPEHDPE
Adipic acid Doy.çöz. % 1.420DD
Allyl alcoholTs-s20SDD
Aluminum Hydroxide Süsp.20DD
AmoniacTs-g20DD
Aqueous ammonia Doy.çöz.20DD
Liquid Ammonia Doy.çöz.20SDD
Ammonium Chloride Doy.çöz.20DD
Ammonium Sulphate 5020DD
Aniline >9620DZ-
Acetic Acid Ts-s20DD
Acetic Acid ,DonorDoy.çöz.20SDD
AcetoneTs-s20SDSD
Copper (II) Sulfate Doy.çöz.20DD
BenzeneTs-s20DZSD
PetrolÇal.çöz.20SDD
BeerÇal.çöz.20DD
Edible OilsTs-s20D-
ButaneTs-g20-D
Mercury Ts-s20DD
Iron (II) and (III) Chloride Doy.çöz.20DD
Ethanol4020DD
Ethylene Glycol Ts-s20DD
Phenol Çöz.20SDD
Formaldehyde 30-4020DD
Glycerin Ts-s20DD
The weather Ts-g20DD
Hydrogen Ts-g20DD
Hydrogen Peroxide3020DD
Hydrochloric Acid3020DD
Urine-20DD
(In Alcohol) IodineÇal.çöz.20DZDZ
Calcium Carbonate Süsp.20DD

CHEMICAL NAME%CONTRECATIONT(OC)LDPEHDPE
Calcium Chloride Doy.çöz.20DD
Carbon Dioxide (gas) Ts-g20DD
Carbon Monoxide (gas)Ts-g20DD
Carbon Tetrachloride Ts-s20DZSD
Chlorine (gas) Ts-g20DZSD
Chlorinated Water Doy.çöz.20DZSD
ChloroformTs-s20DZDZ
Lead AcetateDoy.çöz.20DD
Sulfur dioxide (gas) -20DD
Methyl Alcohol ts-s20DD
Nitric Acid 2520DD
Misty Nitrous Oxide -20DZDZ
Oxygen (gas) Ts-s20DD
Potassium HydroxideÇöz.20DD
CyclohexanolTs-k20-D
Sodium BicarbonateDoy.çöz.20DD
Vinegar Çal.çöz.20DD
Sodium Hydroxide Çöz.20DD
Sodium CarbonateDoy.çöz.20DD
Sodium Chloride Doy.çöz.20DD
Sodium SulphateDoy.çöz.20DD
Distilled Water -20DD
Mineral Water Çal.çöz.20DD
Sulfuric Acid 5020DD
MilkÇal.çöz.20DD
WineÇal.çöz.20DD
Toluene Ts-s20DZSD
Trichloroethylene Ts-s20DZDZ
Ureaçöz.20DD
OilsTs-s20SDD

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