Essential Equipment
In fields that require cleanliness, such as semiconductors, liquid crystal, food processing, and vacuum industries, impurities must not be allowed to enter the product. In fields where environmental considerations are required, such as the atomic, petrochemical, and heavy electrical (electric) industries, impurities must not be allowed to leak to the outside. Ohno Bellows Industry's products are used as "essential equipment" in important parts of piping lines where leakage is unacceptable.
Bellows Valve Features that Create Better Environmental Protection
Eliminates the problem of external leakage
By incorporating bellows, the inside and outside are completely isolated and sealed, so there is no possibility of leakage from the gland.
Safety management
It is ideal for preventing dangers such as toxic gas leaks, explosions, and radiation, as well as for environmental protection against chemical pollution and foul odors.
Maintaining fluid quality
Since there is absolutely no mixing of external impurities, the quality of high-purity fluids or active, polymeric fluids is maintained.
Reduced energy and operating costs
Bellows valves can significantly reduce operating costs by preventing plant-wide energy waste caused by valve leakage.
Essential for vacuum equipment and flow rate control
With conventional valves, it is possible to easily obtain a high degree of vacuum and stable airtightness that could not be maintained, and the certainty and reliability are far superior to conventional valves.
Ease of maintenance
The frequency of maintenance is reduced as the need for tightening and replacing gland packing is significantly reduced.
Easy to operate
Unlike conventional valves, the stem is pressed by the tightening of the gland packing, which does not make the handle difficult to turn, making operation comfortable.



