| 摘要 |
An inventive dual plate check valve is provided which comprises a central anchoring fixture and an elastomer hinge fixed to the central anchoring fixture by a center post clamp. Two opposing sections of the elastomer hinge are formed on opposing sides of the center post clamp, and at least one disc member is attached to each opposing section of the elastomer hinge to form a valve plate which is pivotable about the center post clamp. In one embodiment, the central anchoring fixture forms projections on opposing sides of the center post clamp such that the lower edges of the valve plates are prevented from sliding off of the upper surface of the central anchoring fixture. In another embodiment, a stop pin is provided which extends vertically between the valve plates.
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