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公开(公告)号：US4819965A
公开(公告)日：1989-04-11
申请号：US103950
申请日：1987-10-02
申请人： Irving D. Press , Helm A. Rink
发明人： Irving D. Press , Helm A. Rink
IPC分类号： F16L27/111 , F16L55/00
CPC分类号： F16L27/111
摘要： A fail-safe bellows assembly eliminates the usual limit bolts and replaces them with a cylindrical guard that encircles the bellows element with its associated coupling flanges and interconnects said flanges so as to permit a limited safe magnitude of elongation and articulation. The guard is coupled to both flanges by pins radiating from the flanges that project into apertures in the guard with the apertures lareger than the O.D. of the pins to provide for relative movement of the flanges. A radial gap between the peripheries of the flanges and the guard is filled with a compressible foam layer, and aperture occluders are interposed between foam and guard to prevent extrusion through the apertures of a secondary seal sleeve that bridges the gap between the flanges.
摘要翻译： 一个故障安全的波纹管组件消除了通常的极限螺栓，并用圆柱形护罩代替它，该圆柱形护罩用波纹管元件和相关的联接法兰环绕，并使所述凸缘相互连接，从而允许有限的伸长和铰接的安全幅度。 防护罩通过从凸缘辐射的销钉连接到两个法兰上，凸缘突出到防护罩的孔中，孔径比O.D. 以提供凸缘的相对运动。 凸缘周围和防护罩之间的径向间隙填充有可压缩的泡沫层，并且在泡沫和护罩之间插入孔闭塞，以防止通过桥接凸缘之间的间隙的二次密封套的孔挤出。
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公开(公告)号：US4046406A
公开(公告)日：1977-09-06
申请号：US577849
申请日：1975-05-15
CPC分类号： F16L59/145 , F16L59/161 , Y10T137/7036
摘要： Steel pipe, fittings, joints and valves, lined with PTFE resin are rendered fire-safe for in excess of one hour exposure to open flames by jacketing the components with an enclosure formed from fibrous refractory material. The enclosures are configured and dimensioned to contain a substantially fixed air volume within a predetermined air gap space between the exterior of the component and the interior of the jacket. As an example, high-alumina ceramic fiber mixed with a suitable binder is vacuum formed and then surface coated with an epoxy enamel to produce segments which can be joined around the components to produce satisfactory enclosures. The described segments are reinforced with a metallic skeletal structure which is located so as to permit sizing of openings in the field to accommodate alternative modes of installation.
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公开(公告)号：US4537425A
公开(公告)日：1985-08-27
申请号：US377187
申请日：1982-05-11
IPC分类号： F16L23/028 , F16L23/12 , F16L23/16 , F16L9/14
CPC分类号： F16L23/167 , F16L23/028 , F16L23/125
摘要： Connection between flange faces is effected with a rigid metal load bearing ring interposed therebetween for assuming the bolt torquing load and, when desired, for providing a fluid seal. Within said load bearing ring are disposed at least one coned ring spring and a force distributing ring for developing a predetermined sealing force against a flare of non-metallic material, usually a plastic. The flare may be at the end of a pipe or fitting liner or associated with an auxiliary or adapter seal. The spring provides automatic compensation for any cold or hot flow of the material within the flare so as to maintain a fluid seal between said flare and a mating surface.
摘要翻译： 法兰面之间的连接是通过插入其间的刚性金属承载环实现的，用于假定螺栓扭矩载荷，并且在需要时用于提供流体密封。 在所述承载环内设置有至少一个锥形环弹簧和力分布环，用于对非金属材料（通常为塑料）发出预定的密封力。 火炬可以在管道或配件衬垫的末端或与辅助或适配器密封件相关联。 弹簧为火炬内的材料的任何冷或热流动提供自动补偿，以便在所述火炬和配合表面之间保持流体密封。
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公开(公告)号：US5054523A
公开(公告)日：1991-10-08
申请号：US498272
申请日：1990-03-23
申请人： Helm A. Rink
发明人： Helm A. Rink
CPC分类号： F16L39/005 , F16L33/04 , Y10T137/7043 , Y10T24/1441
摘要： Secondary containment of the flexible hose connection between the underground hydrocarbon fuel fiberglass supply pipe and the emergency shut-off valve feeding a gasolene dispensing pump is obtained with a univerally applicable elastomeric corrugated sleeve that is secured at opposite ends, respectively, to the supply pipe and an adapter at the valve by non-metallic clamps. The clamps are of split ring construction with an initial small gap at the end of a projecting lip which is compressed upon tightening a glass reinforced Nylon bolt. This ensures smooth uniform contact with the sleeve for a full 360.degree. circumferentially. Adapters provide the "nipple" surface to which the sleeve is clamped. An air valve is provided in the sleeve to permit pressure testing and to enable leak detection, if desired.
摘要翻译： 通过一个通用的弹性体波纹套管分别在相对端分别固定在供应管道上，并获得了地下碳氢化合物燃料玻璃纤维供应管和供应汽油分配泵的紧急关闭阀之间的柔性软管连接的二次容纳， 通过非金属夹具在阀门处的适配器。 夹具是开口环结构，在突出的唇缘的末端具有初始的小间隙，在紧固玻璃增强尼龙螺栓时被压缩。 这确保了与套筒的平滑均匀接触，圆周360度。 适配器提供套筒夹紧的“乳头”表面。 如果需要，在套筒中设置空气阀以允许压力测试并且允许泄漏检测。
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公开(公告)号：US4058328A
公开(公告)日：1977-11-15
申请号：US736778
申请日：1976-10-29
CPC分类号： A62C3/04 , F16L51/025
摘要： An expansion joint having a working element of polytetrafluoroethylene is protected from fire by jacketing with an enclosure of refractory material. The jacket has openings through which pipe passes to and from the joint. A gland is inserted within the openings around the pipe for closing most of the gap therebetween while affording sufficient freedom of movement not to interfere with motion of the joint. Each gland is formed from a metal ring, channel shaped, coated on all surfaces with an intumescent material which expands in a fire to seal all remaining gaps between the pipe and the encircling opening in the jacket whereby hot gases are barred from passage. Alternatively, where radial movement is not required, the intumescent material may be coated directly on the refractory material around the opening surrounding the pipe. The principles of the gland and the use of the intumescent material may be applied wherever a fire stop and a thermal barrier are required in the space between two relatively movable non-combustible elements.
摘要翻译： 具有聚四氟乙烯工作元件的膨胀接头用耐火材料外壳保护起来防止火灾。 护套具有开口，管通过该开口穿过和离开接头。 在管道周围的开口内插入一个压盖，用于封闭其间的大部分间隙，同时提供足够的运动自由度，不会妨碍接头的运动。 每个压盖由金属环形成，通道形状，在所有表面上涂覆有膨胀材料，其在火中膨胀以密封管道和套管中的环绕开口之间的所有剩余间隙，从而阻止热气体通过。 或者，当不需要径向移动时，膨胀材料可以直接涂覆在围绕管的开口周围的耐火材料上。 可以在两个相对可移动的不可燃元件之间的空间中需要火焰停止和热障的地方应用压盖的原理和膨胀材料的使用。
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