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三通阀门组(下称阀组)是差压变送器不可缺少附件,其主要用于脉冲管路中作平衡启闭用。阀组由高低导压阀及平衡阀组成(见图1)。有些上下接头对称,且厂家没有标出安装方向,如果在安装中不注意,把阀组颠倒安装(见图2b),平衡伐处在高低导压阀之上,当差压变送器投入运行时,特别在高
Three-way valve group (hereinafter referred to as the valve group) is an indispensable differential pressure transmitter attachment, which is mainly used for the pulse of the pipeline opening and closing for balance. Valve from the level of the pilot valve and the balance valve (see Figure 1). Some upper and lower joints symmetrical, and the manufacturer did not indicate the installation direction, if not pay attention to the installation, the valve installed upside down (see Figure 2b), balanced cut in the high and low pilot pressure valve, when the differential pressure transmitter is put into operation , Especially high