BJ45H、BJ45Y、BJ45W型PN16~PN40保温夹套直流式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。【执行标准】设计与制造：BS1873BS5160GB12233法兰尺寸：ANSIB16.5JB/T79GB9113压力温度：ANSIB16.34结构长度：ANSIB16.10BS1873GB12221对焊连接尺寸：ANSIB16.25检验与实验：BS6755GB/T13927主要外形和连接尺寸公称通径尺寸LDD1D2b3-GZ-dHD0BJ41W151301057555143/84-14175180201501158568143/84-141851802516013510078163/84-182102003218014511085163/84-1835020040200160125100163/84-1836020050250180145120181/24-1838024065265195160135201/28-1844024080280215180155201/28-18510280100300245210185221/28-18620320125325280240210241/28-23680360150350335295265261/212-23818360200400405355320301/212-251200400250450460410375301/212-251450450300500520470435341/216-251600500)