焊接横担D7焊接横担D7A焊接横担，由槽钢×2、垫板×2、支座×1组合而成，其与D6型管夹横担的区别在于：去除了支座上面焊接的管夹。焊接横担与管道的固定方式为焊接，即将管道与支座的接触面以焊接工艺进行固定。焊接横担两端底部的F3垫板开孔用于穿过螺纹吊杆，螺纹吊杆与槽钢之间以螺栓螺母进行固定，组成管道悬吊系统。表面处理方式一般是喷防锈漆，制作材质根据不同的需求而采用不同材质，设计手册上按照不超过300°C的温度环境，采用Q235碳钢材质。订货时表示方法为：焊接横担D7.273S（使用管径Dw=273，S为材料代号）。该产品是西北电力设计院1983年颁布的汽水管道支吊架设计手册中的管部吊架类产品，是管道常见的管道悬吊系统组件之一。

D7型焊接横担的规格型号有：D7.57S，D7.76S，D7.89S，D7.108S，D7.133S，D7.159S，D7.168S，D7.194S，D7.219S，D7.245S，D7.273S，D7.298S，D7.325S，D7.355S，D7.377S，D7.406S，D7.426S，D7.457S，D7.480S，D7.508S，D7.530S，D7.558S，D7.630S，D7.720S，D7.820S，D7.920S，D7.1020S，D7.1120S，D7.1220S。

D7A型焊接横担的型号有：D7A.168S，D7A.194S，D7A.219S，D7A.245S，D7A.273S，D7A.298S，D7A.325S，D7A.355S，D7A.377S，D7A.406S，D7A.426S，D7A.457S，D7A.480S，D7A.508S，D7A.530S，D7A.558S，D7A.630S，D7A.720S，D7A.820S，D7A.920S，D7A.1020S，D7A.1120S，D7A.1220S。

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