Bend the tube into a U shape at a temperature of 20°C. Fix one end and bend the loop gradually at 100 mm/min. Measure 2R when the tube breaks or is crushed. TQ0425 20 Length per roll Symbol 20 100 Length 20 m 100 m Tubing designation How to measure the minimum bending radius Fixed end Specifications Note 1) There may be plasticizer (white powder) deposits on the external surface of the tube. Please be careful when the tube is used in clean rooms. Otherwise, the clean level may decrease. Note 2) When solvent is used, make sure to test in the same environment as the actual operating environment, and confirm that no problem will occur in the operating conditions. The standard value of the Applicable Fluid List below is the reference value based on the test result performed under specific conditions. The product can be physically affected by temperature, pressure, chemical density, etc, causing permeation or swelling, and this may cause some problems. Note 3) Perform periodic maintenance inspections. If leakage continues to occur after tightening, replace the tube with a new one. (Refer to Maintenance in the Specific Product Precautions on page 435.) When the tube rotates, perform a test to make sure no problem occur in the actual operating conditions. When the product is used with motion for a long time, or at a high temperature, the tubes may have leakage due to deterioration of the materials. Note 4) Observe the lesser value of the maximum operating pressure between the tubing and fitting. The surge pressure must not exceed the maximum operating pressure. If the surge pressure exceeds the maximum operating pressure, it will result in damage to tubes and fittings. Furthermore, abnormal temperature rise caused by adiabatic compression may result in the tube bursting. Note 5) Minimum bend radius (tube close bend radius) is not guaranteed. The value of 2R in the left figure is measured with a bent or flattened tube. Note 6) For the installation of fluoropolymer fitting LQ1 and LQ3, please contact SMC. Insert fittings KF, KFG2, VCK series Miniature fittings M, MS series (Hose nipple type) Fluoropolymer fittings LQ1, LQ3 series Note 6) Designation TQ0425 O.D. (mm) I.D. (mm) Roll Color Note 1) Fluid Note 2) Fluid temperature (fixed usage) Material Max. operating Note 4) pressure (MPa) Min. bending radius (tube close bend radius) Note 5) (mm) Applicable fittings Note 3) 20 m 100 m 20°C 4 2.5 �� �� 2.0 4 1.9 9 1.5 26 1.1 42 1.2 37 TQ0604 6 4 �� �� TQ0806 8 6 �� �� Translucent (Material color) Air, Water, Inert gas, Solvent Air, Inert gas: .20 to 100°C, Water, Solvent: 0 to 70°C (No freezing) Inner layer: Special fluoropolymer, Outer layer: Special nylon resin TQ1008 10 8 �� �� TQ1209 12 9 �� �� Temperature (°C) .20 to 20 30 40 50 60 70 80 90 100 TQ0425 2.0 1.7 1.4 1.2 1.1 1.0 0.9 0.8 0.7 TQ0604 1.9 1.6 1.4 1.1 1.0 0.9 0.8 0.7 0.6 TQ0806 1.5 1.2 1.0 0.8 0.7 0.6 0.5 0.4 0.4 TQ1008 1.1 0.9 0.8 0.6 0.5 0.4 0.4 0.3 0.3 TQ1209 1.2 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 Chemical Hydrochloric acid Sulfuric acid Nitric acid Caustic soda Caustic potash Ammonlum hydroxide Hydrogen peroxide Water Phenol Benzene Toluene Xylene Carbon tetrachlorlde Acetone Methyl ethyl ketone Inner layer Special fluoropolymer �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ Outer layer Special nylon resin �ｨ �ｨ × �ｨ �ｨ �ｱ �ｨ �ｱ × �ｨ �ｨ �ｨ × �ｨ �ｨ Chemical Citric acid Stearic acid Formic acid Ethyl acetate Butyl acetate Methyl alcohol Ethyl alcohol Butyl alcohol Isopropyl alcohol Cellosolve Hexane Cyclohexane Mineral oil ASTM No.3 Naphtha Inner layer Special fluoropolymer �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｱ �ｨ �ｱ �ｱ �ｱ �ｱ Outer layer Special nylon resin �ｨ �ｨ �ｨ �ｱ �ｨ �ｱ �ｱ �ｱ �ｱ �ｨ �ｨ �ｨ �ｱ �ｱ Applicable Fluid List Max. Operating Pressure Fluid in the list below are chemically inert Note 1), to tubing material. Possible physical effects may occur such as penetration and swelling due to temperature, pressure and chemical density. To use tubing in a solvent environment, tests should be performed with the same environment to ensure no problem occurs with operating environment. Note 1) “Chemically inert” means . not to cause any chemical reaction. Note 2) Criteria: �ｱ Applicable, �ｨ Not recommended, × Inapplicable Note 3) Applicable Fluid List shows the reference value based on test results performed under specific conditions. Application for products is not guaranteed. Note 4) Applicable Fluid List is for tube materials. For use in environments containing solvents, please contact SMC. Unit: MPa RoHS 2-Layer Soft Fluoropolymer Tubing Series TQ How to Order A 434