| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel bellows valve having improved impact pressure resistance under the condition of water hammer and achieving higher reliability and longer life. SOLUTION: The bellows valve comprises a bellows part for covering a portion of a valve shaft part inserted into a valve box part. The bellows part consists of an outward bellows for receiving liquid pressure in the valve box part and an inward bellows provided inward on the outward bellows. The bellows part has a discharge part for discharging liquid entering between the outward bellows and the inward bellows to the outside of the valve box part, a sealing part formed between the portion of the valve shaft part inserted into the valve box part and the inward bellows for sealing and storing the liquid, and a container part continuously provided therein for receiving fluid sealed in the sealing part and flowing out of the sealing part during the shrinkage of the bellows part. COPYRIGHT: (C)2005,JPO&NCIPI
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