译文：
产品用途 三通球阀有T型和L型。T型能使三条正交的管道相互联通和切断第三条通道，起分流、合流作用。L型只能连接相互正交的两条管道，不能同时保持第三条管道的相互连通，只起分配作用。 产品特点 1、三通球阀在结构上采用一体化结构，4面阀座的密封型式，法兰联接少，可靠性高，设计实现了轻量化。 2、三通球芯分T型和L型，使用寿命长，流通能力大，阻力小。 3、球阀按作用式分单作用和双作用两种型式，单作用式的特点是一旦动力源发生故障时，球阀将处于控制系统要求的状态。

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原文：
Usage Ball valve with T-and L-type. T-enable the three orthogonal interconnected pipelines and cut off the third channel, divert traffic, merge function. L-only connection between the two orthogonal channels can not simultaneously maintain a third pipe connected with each other, only as a distribution function. Features 1, ball valve structure used in the integrated structure, 4-valve seat sealing surface type, small flange connection, high reliability, design and implement lightweight. 2, three T-ball core points and L-type, long life, flow capacity, small resistance. 3, ball by acting the role of sub-single-and dual role of two types, single-action features is that once the power source failure, valve control system requirements will be in the state.