| 摘要 |
A gate valve body is formed from a U-shaped member wherein each leg and the bottom connecting portion of the U-shaped member have a substantially U-shaped cross-section. The arms of the U-shaped cross-section of each leg face each other. A filler plate having a concave bottom surface is extended across the front face of the U-shaped member downwardly from the free end of each leg and welded to a facing arm of each leg. A second similar filler plate is extended across the rear face of the U-shaped member and similarly welded. An attaching plate having a cut-out center portion is welded to the free ends of the legs of the U-shaped member and to the top surfaces of the filler plates.
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