A T-piece connector replaced by four-way valve can effectively avoid the damage to the pump caused by a blockage in splitting capillary more accurately adjust the velocity of the mobile phase in microlitre grade improve stability of the system .

由四通 双 分流 系统取代 三通 单 分流 系统可有效的避免分流 管堵塞对泵造成损伤，更加精确的调控流动相微升级流速，提高系统稳定性。

Rees T-piece paediatric circuit

里斯氏 T 形 管儿科回路