116 Mandrel Wrapping direction Sealant tape Expose approx. 1 thread 1. Preparation before piping Before piping is connected, it should be thoroughly blown out with air (flushing) or washed to remove chips, cutting oil and other debris from inside the pipe. 2. Wrapping of sealant tape When screwing together pipes and fittings, etc., be certain that chips from the pipe threads and sealant does not get inside the pipe. Also, when the sealant tape is used, leave approx. 1 thread ridges exposed at the end of the threads. 3. Check the model, type and size before installation. Also, confirm that there is no scratches, gouges or cracks on the product. 4. When connecting the tubing, take pressure or possible changes to the tubing length into account, and allow a sufficient margin. Failure to do so may result in fitting breakage or detachment of the tubing. Refer to the recommended piping conditions. 5. Do not apply unnecessary forces such as twisting, pulling, moment loads, vibration and impact, etc. on fittings or tubing. This will cause damage to fittings and will crush, burst or release tubing. 6. Tubing, with the exception of coiled tubing, requires stationary installation. Do not use standard tubing (non-coiled) in applications where tubing is required to travel. Tubing that travels may sustain abrasion, extension, or severance due to tensile force, or may result in removal of tubing from fitting. Use caution prior to use for proper application. 7. To install the fitting, screw the fitting into the hexagonal face of the body, and tighten with an appropriate wrench. Affix the wrench at the base of the thread. If the size of hexagonal face and wrench do not match, or tightening takes place near the tube side, it may cause collapse or deformation of the hexagonal face, or damage to the equipment. After installing, confirm that there is no damage to the fitting, etc. Fittings & Tubing Precautions 1 Be sure to read this before handling. Here, η : Deformation ratio (%) d : Tubing diameter (mm) L : Measured length (mm) D : Mandrel diameter (mm) (Twice against the minimum bending radius) Test temperature: 20 ±5°C Relative humidity: 65 ±5% Tube deformation ratio at the minimum bending radius Design/Selection Mounting/Piping Warning Warning 1. Check the specifications. The products in this catalog are designed to be used in compressed air systems (including vacuum) only. If the products are used in an environment where pressure or temperature is out of the specified range, damage and/or malfunction may result. Do not use under such conditions. (Refer to the specifications.) Please consult with SMC when using a fluid other than compressed air (including vacuum). We do not guarantee against any damage if the product is used outside of the specification range. 2. Do not disassemble the product or make any modifications, including additional machining. It may cause human injury and/or an accident. 3. Check if PTFE can be used in application. PTFE powder (Polytetrafluoroethylene resin) is included in the sealant. Confirm that the use of it will not cause any adverse affect on the system. Caution 1. Keep the connection part of fittings and tubing from rotating or oscillating movement. Use Rotary One-touch Fittings (Series KS or KX) in these cases. The fittings may be damaged if they are used in the above manner. 2. The tubing bending radius in the vicinity of the fitting should be at least the minimum bending radius of the tubing. If the bending radius is less than the min. value, fittings may damage, or tubing may crack or be crushed. The minimum bending radius, with the exception of TS soft nylon tubing, TU polyurethane tubing, TUH hard polyurethane tubing, TUS soft polyurethane tubing, TRBU FR double layer polyurethane tubing, TH FEP tubing, TL PFA tubing, TD modified PTFE tubing, is measured as following in accordance with JIS B 8381-1995. Tubing deformation ratio at the minimum bending radius is obtained through the following formula, based on tubing diameter and mandrel diameter by wrapping the same radius mandrel tube. 3. Do not use fluids other than listed on the specifications. Applicable fluids are air and water. Please consult with SMC if using other fluids. 4. When it is used with water, the fittings or tubing may be damaged depending on the surge pressure. 1. Operation manual Install the products and operate them only after reading the operation manual carefully and understanding its contents. Also, keep the manual where it can be referred to as necessary. 2. Ensure sufficient space for maintenance activities. When installing the products, allow access for maintenance. 3. Adhere to the thread tightening method. When installing the products, refer to “Connection Thread Tightening Method”. 4. There may be cases of the tubing detaching from the fitting and thrashing around uncontrollably due to tubing degradation or fitting breakage. To prevent the situation from becoming uncontrollable, fit the tubing with a protective cover or fix it in place. Caution η = L . D 2d 1 . x 100