In addition, the measurement on pressure loss cross one side of four-way diverter valve has been carried out and some questions on pressure loss of four-way diverter valve are posed.
同时，也对四通换向阀进行了单侧压力损失测量，对四通换向阀说明书上的压力损失参数的准确性提出了质疑。
2
To change this four-wayvalve will only take five minutes.
换这个四通凡尔只需要五分钟。
3
A by-pass capillary tube was added on the discharge pipe behind the four-wayvalve and a tube was added in an accumulator in a heat pump system to solve the problem.