ASAHI AV VALVES Installation, Operation and Maintenance Manual
Butterfly Valve Type 57, 56, 56D Electric Actuated Type S 2
(2) General operating instructions
- Do not disassemble or remodel the actuator.
- Do not operate the manual override while the actuator is energized.
- Keep hands and other extremities away from moving parts under all circumstances.
(Any such practice may get your hand, arm, or other part of your body caught.)
- Using a positive-pressure gas with our plastic piping may pose a dangerous condition due to the
repellent force particular to compressible fluids even when the gas is under similar pressures used for
liquids. Therefore, be sure to take the necessary safety precautions such as covering the piping with
protective material. For inquiries, please contact us. For conducting a leak test on newly installed
piping, be sure to check for leaks under water pressure. If absolutely necessary to use a gas in testing,
please consult your nearest service station beforehand.
- Before using the product, check the operating power supply and the voltage specification on the
nameplate. Using an improper voltage may cause equipment damage or malfunction.
- Do not step on or apply excessive weight on valve. (It can be damaged.)
- Do not use AV valves in a place where they may become submerged in water.
- Do not apply a great impact or vibration to the actuator. (Any such practice may result in breakdown.)
- Do not use the valve in conditions where the fluid may have crystallized.
(The valve will not operate properly.)
- Keep the valve away from excessive heat or fire. (It can be damaged, or destroyed.)
- Avoid locations with corrosive gas or otherwise bad atmospheres. Install a cover or something similar
that covers the entire area.
- Always operate the valve within the pressure vs. temperature range.
(The valve can be damaged or deformed by operating beyond the allowable range.)
- Allow sufficient space for maintenance and inspection.
- Select a valve material that is compatible with the media. For chemical resistance information, refer to
(Some chemicals may damage incompatible valve materials.)
- Keep the valve out of direct sunlight, water and dust. Use cover to shield the valve.
(The valve will not operate properly.)
- Perform periodic maintenance. (Leakage may develop due to temperature changes or periods of
prolonged storage, rest, or operation.)
- When installing a valve, provide an appropriate support. (Lack of such a support may cause the valve
and piping to be overstrained, resulting in damage or other defect.)
- Before using the product, check the operating power supply and the voltage specification on the nameplate.
Using a wrong voltage may cause equipment damage or malfunction.
- In the case of malodor, overheating, or smoking, turn off the power supply immediately. (Continued
use despite an abnormality present may result in a fire. If you detect any abnormalities, be sure to
consult the dealership where you bought the product or our service station nearest your premises and
ask them to perform an inspection.)
- For manual operation, be sure to use the handle furnished with the product by the manufacturer.
When using the product in explosive atmosphere, ensure that the actuator complies with the
explosion-proof specifications required for that area.
- Keep the ambient temperature of the installed location within the range -10°C and 50°C.
- If the product is not water-resistant, do not leave the actuator in soil, sand, or water.
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