RS致断螺栓式拉断阀ABV型

• 口  径：	DN25-100mm
  颜  色：
  温  度：	-40℃~100℃
  材  质：	316
  特  性：
  认  证：
  应用范围：	罐车装卸

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Roman Seliger(罗曼塞立格)致断螺栓式拉断阀ABV型

The compact breakaway coupling series with force-controlled triggering by means of breaking pins

The cost-efficient solution for the standard application

Due to its cost-effective design, the ABV series is the universal solution for all processes in which loading times and/or flow rates are not in the focus (see our L series) and the loading line is sufficiently robust (see our S series).

The ABV series breakaway couplings separate the line at a defined tensile load. This should be selected with a sufficient safety margin below the load limit of the line, such as the maximum tensile load of a hose line. Both coupling halves are equipped with a non-return valve each that allows to close the line impermeably when it is separated and to exclude that the medium escapes into the environment.

The basic principle:

The ABV series couplings consist of two almost identical coupling halves. These are connected via a pair of flanges by means of three breaking pins during normal operation. The flanged connection has no overlaps, so tensile forces acting on the line are directly transmitted to the breaking pins. The ABV function is available without limitation of the load angle. When pure axial load is applied, the tensile force is distributed evenly to all three pins so that the threshold for triggering is the highest here. However, when lateral tensile forces are applied, the load is distributed unevenly to the breaking pins; the load increases with the size of the angle to the coupling axis. The load then increasingly focuses on one or max. two pins, so that the planned separation takes place at a lower threshold value.

If their tensile strength is exceeded, the pins break and the flanged connection is loosened. In this case, the separated coupling halves must be closed immediately; for this purpose the two housing halves are equipped with spring-loaded non-return valves. In the operating state, they brace each other and keep the flow cross-section open. In the case of separation the mutual support effect of the valves no longer exists so that they abruptly close each cross section being released.

ABV型拉断阀可以防止软管或者硬质管道受到超负荷张力形成损伤或事故，这里的张力包括非轴向力（非轴向力会降低软管的张力负载），当拉断阀到达触发力值时一分为二，形成两个分离的阀体，各自阀体内部的截止阀自动瞬间关闭，阻止物料在分离截面溢出，避免灾害事故发生。

应用领域

●  化工行业

●  食品行业

●  电厂

●  造船厂

●  物料储存库

●  化学品槽罐车

技术参数（致断螺栓式拉断阀ABV型）

密封件  

●  O-型圈: NBR, EPDM, FFKM, FKM

●  螺纹密封: PUR, PTFE

优势

●  阀体结构紧凑

●  高品质 TüV-认证材料制造

●   DIN-ISO 228 国际通用螺纹接口

●   100% 保持和管路大小一致的横截面积

拉断阀的两头连接端标配为内螺纹，阀体和内部零件材质可以提供不锈钢、黄铜、铝合金及哈氏合金Hastelloy?; 密封件可提供聚氨酯（polyurethane），丁晴橡胶（ Perbunan?） 和全氟橡胶 Kalrez?；静密封为PTFE材料.