138 Brass Compression Fittings / Stud Fittings Cut the polymer or metal tube square. Push the tube up against the shoulder of the body of the fitting and hand tighten. For metal tubing, de-burr the tube prior to connection. Tube bending should be done before connection. Tighten the nut using a spanner or torque wrench to enable the olive to bite on the tube, the connection being completed when the recommended tightening torque is reached (see tables below). Cutting the Tube Preparing the Connection Connecting the Tube Final Assembly Slide the nut onto the tube; lubricate the threads on the body and nut along with the olive to facilitate tightening (for metal tubing as well). Fit the olive onto the end of the tube. It is recommended to use an insert in order to prevent tube creeping (diameter > 14mm) Installation Copper tube: copper which has been "cold rolled", cold drawn and in straight lengths. Brass tube: in cold-rolled straight lengths (same working pressure as for copper tube). "Coiled annealed" copper tube: reduces working pressure by 35%; must be avoided completely if vibration is present. Assembled using Parker Legris brass olive and nut. Recommended Tube Type Recommended Tube-Fitting Assembly Configurations Steel tube: "thin wall" cold drawn, seamless, bright annealed and in straight lengths. 6 mm to 16 mm O.D.: max. wall thickness 1 mm Above 16 mm O.D.: max. wall thickness 1.5 mm Assembled using Parker Legris steel olive and nut (nut type 0110..40). Assembled using Parker Legris brass olive and nut. Polyamide tube: semi-rigid For rigid polyamide tube, multiply the figures in this table by 1.8. 1000 200 145 400 160 125 340 150 115 310 2 x 4 3 x 5 4 x 6 6 x 8 8 x 10 10 x 12 12 x 14 13 x 15 14 x 16 16 x 18 18 x 20 20 x 22 23 x 25 0 400 770 290 70 40115 470 370 860 550 460 970 310 225 590 240 225 480 140 110 280 100 70 190 90 60 160 45 0 20 25 40 30 32 22 23 22 16 14 12 17 21 20 18 20 16 16 12 10 22 23 21 3 x 4 2.7 x 4 2 x 4 3.3 x 5 4 x 6 6 x 8 8 x 10 7.5 x 10 10 x 12 9 x 12 12 x 14 11 x 14 10.4 x 14 12 x 15 11 x 15 13 x 16 12 x 16 14 x 18 15 x 20 16 x 22 19 x 25 23 x 28 22 x 28 20 25 40 30 32 22 23 22 16 14 12 17 21 20 18 20 16 16 12 10 22 23 21 0 2 x 4 3 x 5 4 x 6 6 x 8 8 x 10 10 x 12 12 x 14 13 x 15 14 x 16 16 x 18 15.6 x 18 18 x 20 17.6 x 20 20 x 22 18.8 x 22 23 x 25 21.8 x 25 26 x 28 24.8 x 28 24 x 28 190 150 100 75 55 45 42 40 37 55 35 50 30 60 20 55 25 40 50 190 150 100 75 55 45 42 40 37 55 35 50 30 60 20 55 25 40 50 240 230 120 85 85 230 Working Pressure with Water Hammer (bar) Maximum Water Hammer Pressure (bar) Steel Tube Maximum Working Pressure (bar) Parker Legris Semi-Rigid Polyamide Tube Maximum Working Pressure (bar) Copper Tube Maximum Working Pressure (bar) Maximum Working Pressure (bar) When using a plastic nut type 0110..70, the maximum working pressure is 10 bar, for all diameters. Parker Legris brass compression fittings are not compatible with ammonia and its derivatives. Temperature °C -40°C / -15°C -15°C / +30°C +30°C / +50°C +50°C /+70°C +70°C /+100°C Factor 1.8 1 0.68 0.55 0.31 Working Pressure Coefficients for Semi-Rigid Polyamide Tubing The above recommendations are given in good faith. However, since each application is different, it is advisable to undertake tests in actual working conditions.
RkJQdWJsaXNoZXIy MzYzNzg=