คำเตือนและข้อควรระวังในการใช้อุปกรณ์นิวเมติกส์ Series VCHN Specific Product Precautions ของ SMC

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1. The exhaust port can clog due to a clogged or frozen silencer. Consider design safety to avoid malfunctions of the entire system. Also, under conditions conducive to freezing, use a freeze-reduction model. (VCHNF series) Design Warning 1. When exhaust speed begins to slow from clogging and system functionality begins to degrade, replace with a new silencer or sound-absorbant material. Also, be sure to confirm the actuator's operation status once per day. Maintenance Caution 1. When replacing the sound absorbing material, please follow the instructions below. How to Replace the Sound Absorbing Material Caution Replacement Parts 1. Select a silencer with a larger effective area (including the synthetic effective area) than the solenoid valve. Selection Caution 1. Tighten the silencer, using an appropriate wrench on the width across flats, within the range of the recommended tightening torque as shown below. Do not use a pipe wrench. Otherwise, the silencer will be damaged. 2. Do not apply a lateral load on the main body during or after mounting. 3. When the silencer has loosened due to vibrations from the mounted equipment, mount the silencer after applying an anti-loosening agent to the thread. Mounting Caution 1. A silencer reduces compressed air exhaust noise from the pneumatic equipment. Noise other than that generated by the exhaust assembly (noise generated inside piping, due to equipment vibration, solenoid valve switching, etc.) cannot be reduced. As for noise generated by sources other than the exhaust, locate the cause and take measures. 2. Silencer inlet side pressure shows the solenoid valve supply pressure (P1). (See below.) 3. Noise reduction may vary, depending on the pneumatic circuit or pressure, etc. exhausted from solenoid valves. Caution 11/2 48 to 50 Connecting thread Torque 3/4 28 to 30 1 36 to 38 11/4 40 to 42 Recommended Tightening Torque (Unit: Nm) Part no. VCHN3-EL VCHN4-EL Description Sound absorbing material Sound absorbing material Sound Absorbing Material Part No. Cover ∗ Without its own direction The side without holes should be the body side. Hexagon bolt VCHNF series only Nameplate side placement ∗ Having its own direction Convex part: Sleeve side Sleeve guide Sleeve ∗ Having its own direction Body Sound absorbing material ∗ Without its own direction ∗ Having its own direction Endplate Washer Applicable model For VCHN(F)3 For VCHN(F)4 Silencer Tighten the screw with a torque of 20 to 25 Nm after applying an anti-loosening agent. Also, the anti-loosening agent is r

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