84 メンテナン スについて Applicable electric actuated valves…Type T, Type S, Type H, Type M Reason…… Unless all electric actuated valves are fully opened or closed simultaneously, current will flow through the condensers, which will generate hunting or keep the current flowing without actuating the limit switch and thus heat up the motors. ■Sample Installation with Support ※……… Indicates the current flow when electric actuated valve B is not fully opened due to failure. [Figure-２]Incorrect Example [Figure-１]Correct Example PRECAUTIONS FOR PIPING WORKS �@ Install AV Automatic valve with valve supports. Otherwise, valves may be damaged due to application of excess force. �A Use AV gasket to prevent leakage from flange surfaces �B Do not use electrical connections that enable simultaneous operation of multiple electric actuated valves arranged in parallel using one on/off switch（or contact relay）（See Figure-2). Provide on/off switches（or contact relays）for each valve（See Figure-1). �C Asahi AV automatic valves are not of the immersion type. They cannot be used in locations where they may be immersed in water. �D Keep sufficient space for maintenance and manual operation. �E If piping is installed out-door, prepare the roof to prevent rain from penetrating the valves �F For other details of valve installation, please refer to "Mounting Procedure for Asahi AV Products" and "Technical information on Asahi AV Valves" MAINTENANCE �@ Asahi A V automatic valves need regular inspection at least once a year to ensure accurate operation and long life. Please refer to the provided Operation Manual. �A Do not disassemble the actuator. We are unable to assume any responsibility in the case that human injury or property damage is caused due to disassemble or repair of an actuator conducted without our consent. Therefore, if any abnormality is found, please consult us. SPECIAL SPECIFICATIONS �@ We select the correct materials for valve body, diaphragm, seat, O-ring etc. depending on the operating conditions. Please indicate the operating conditions including type of fluid, temperature, pressure and slurry. �A Asahi AV automatic valves can be provided to meet other special specifications than those specified in this catalog. Rubber Sheet Stand Electric Actuator(A) Electric Actuator(B) X1-b X1-a X2-b X2-a ON:Open OFF:Shut M C X1 X2 S O M C S O On・Off Switch Electric Actuator(A) Electric Actuator(B) M C S O M C S O Outline of Asahi AV Valve ×