40R-DN40,BJ41H-40R-DN50,BJ41H-40R-DN65,BJ41H-40R-DN80,BJ41H-40R-DN100,BJ41H-40R-DN125,BJ41H-40R-DN150,BJ41H-40R-DN200,BJ41H-40R-DN250,
BJ41H-40C-DN15,BJ41H-40C-DN20,BJ41H-40C-DN25,BJ41H-40C-DN32,BJ41H-40C-DN40,BJ41H-40C-DN50,BJ41H-40C-DN65,BJ41H-40C-DN80,BJ41H-40C-DN100,BJ41H-40C-DN125,
BJ41H-40C-DN150,BJ41H-40C-DN200,BJ41H-40C-DN250,
一、BJ41W夹套保温截止阀概述：
保温夹套截止阀是指关闭(阀瓣)由阀杆带动并沿阀座中心轴线做升降运动的阀门，在管路上主要用来接通或截断管路中的介质，BJ45流阻小,但不能