| 摘要 |
A housing at each end of a conduit defines a valve seat. A connector is connected to a valve body in each housing and holds the bodies away from the seats until the conduit fails, after which each body moves into contact with the corresponding seat. A compression zone between each body and the corresponding seat is sufficiently large to reduce heat generated thereat from adiabatic compression of the fluid flowing therethrough. In a variation, two heat-dissipating ribs are externally positioned on each housing adjacent the compression zone. In another variation, the connector is a generally helical spring within the conduit and sized to be in contact with an interior wall of the conduit so that the spring provides structural strength thereto. In another variation, a third housing is employed as a one-way check valve.
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