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BJ41W保温截止阀、BJ45W直流式保温截止阀主要用于石油、化工、冶金、制药等各类系统中，以输送常温下会凝固的高粘度介质。适用于压力6.4MPa，温度低于350℃的硝酸、醋酸等介质。
保温截止阀设计与制造：BS1873 BS5160 GB12234-89
保温截止阀法兰尺寸：ANSIB16.5 JB/T79-94 GB9113
保温截止阀结构长度：ANSIB16.10 BS1873 GB12221-89
保温截止阀压力温度：ANSIB16.34
保温截止阀型号：BJ41W-16P、BJ41W-25P、BJ41W-40P、BJ41W-64P、BJ41W-16R、BJ41W-25R、BJ41W-40R、BJ41W-64R、BJ45W-16P、BJ45W-25P、BJ45W-40P、BJ45W-64P、BJ45W-16R、BJ45W-25R、BJ45W-40R、BJ45W-64R
