140 Handling Precautions Handling Precautions 1. Usage 3. Handling in the case of liquid leakage from inner pipe 2. Installation ・ Outer pipe is for prevention of scattering to outside. Do not apply pressure to outer pipe. ・ Outer pipe may change color by direct sunlight. ・ Do not use them for transporting the compressed air. ・ Hazardous substances regulated by the Water Pollution Act include piping invasive materials. Please check their chemical resistance in advance. ・ When approaching to the pipe, wear protection glasses, gloves and clothes. ・ Make the pressure inside the pipe to zero immediately. ・ Do not leave the fluid accumulated in the outer pipe and discharge immediately. ・ Do not drop or throw during transportation and piping. ・ Store them by avoiding direct sunlight and implement a measure such as placing a sheet in a way of avoiding heat accumulation. ・ Do not leave fittings in an enclosed condition (inside a vehicle in Summer, in an enclosed plastic bag, etc.) under a high temperature atmosphere. ・ For adhesive connection, follow the pipe fitting installation procedure to connect properly. ・ Use adhesive applicable for pipe fitting to connect. ・ Adhesive is applicable to the "second class organic solvents, etc." in the Ordinance on Prevention of Organic Solvent Poisoning regulated by the Ministry of Health, Labour and Welfare, and if it is going to be used over the indoor allowable usage limit, the certification of "Operation chief of organic solvents work" is required. To prevent poisoning from organic solvents or fires, be cautious of ventilation and avoid flammables. ・ AV cement is applicable to "Class 1 Petroleums, Class 4 Hazardous Materials" of Article 2 of the Fire Services Act. Follow the laws and regulations and municipal ordinances for storage. ・ Try to apply adhesive thinly and evenly. Applying too much could cause solvent cracking, etc. and lead to water leakage. ・ During curing after connection, open both ends of pipe without enclosing and remove the solvent steam inside the pipe. ・ U-bands (with rubber seat) are recommended for fixing piping. In the case of using U-bolts inevitably, provide a cushion such as rubber to prevent the pipes from touching the hardware directly. ・ Use elastic slide pipes, expansion joints, elbow returns to absorb heat expansion/contraction. ・ Make sure to use seal tape for thread connection part. Never use liquid seal or liquid gasket.