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Hose Permeation Data (510/510A) Permeation Rate at 120�F (Pound per Linear Hose Foot per Year) Hose Size R12 R22 R507 R404A R502 R134A -2 � .28 � � .03 � -3 � .30 .08 .07 � � -4 � .71 .15 .10 � � -6 � 1.11 � � .87 � Permeation Rate at 212�F (Pound per Linear Hose Foot per Year) Hose Size R12 R22 R507 R404A R502 R134A -2 � � � � � � -3 � 1.25 � � � � -4 .08 2.32 � � � .07 -6 � � � � � � Notes: 1. Data is for comparison only. Actual results may vary due to differences in application temperature and pressure. 2. Data is collected in highly controlled tests per UL1963. 3. Parker Safety Guide for Selecting and Using Hose, Tubing, Fittings and Related Accessories, Section 2.6: Permeation: Permeation (that is, seepage through the hose) will occur from inside the hose to outside when hose is used with gases, liquid and gas fuels, and refrigerants (including but not limited to such materials as helium, fuel oil, natural gas, or freon). This permeation may result in high concentrations of vapors which are potentially flammable, explosive, or toxic, and in loss of fluid. Dangerous explosions, fires, and other hazards can result when using the wrong hose for such applications. The system CoiledHose,AirHydraulic&PTFETechnical& designer must take into account the fact that this permeation will take place and must not use hose if this permeation could be(Fleet)Truck&ToolingFittingsPneumaticHose&ThermoplasticDesignAlphanumericApprovals&Hose hazardous. The system designer must take into account all legal, government, insurance, or any other special regulations which ProductsEquipmentAccessories&Hose&Fit.FittingsTubingIndexInformationGuidesAccessories govern the use of fuels and refrigerants. Never use a hose even though the fluid compatibility is acceptable without considering the potential hazardous effects that can result from permeation through the hose assembly. Permeation of moisture from outside the hose to inside the hose will also occur in hose assemblies, regardless of internal pres- sure. If this moisture permeation would have detrimental effects (particularly but not limited to refrigeration and air conditioning systems), incorporation of sufficient drying capacity in the system or other appropriate system safeguards should be selected and used. 275 Parker Hannifin Corporation Parflex Division Ravenna, Ohio
Goodyear Rubber Products
