真空隔离截止阀常见的公称压力有1.6MPa、2.5MPa、4.0MPa、6.4MPa、10.0MPa，常见的公称通径有DN15、DN20、DN25、DN32、DN40、DN50、DN65、DN80、DN100、DN125、DN150、DN200等。
一、法兰连接真空隔离截止阀型号：
NKJ41H-16C、NKJ41H-25C、NKJ41H-40、NKJ41H-64、NKJ41H-100。
NKJ41H-16I、NKJ41H-25I、NKJ41H-40I、NKJ41H-64I、NKJ41H-100I。
NKJ41H-16P、NKJ41H-25P、NKJ41H-40P、NKJ41H-64P、NKJ41H-100P。
NKJ41H-16R、NKJ41H-25R、NKJ41H-40R、NKJ41H-64R、NKJ41H-100R。
二、焊接真空隔离截止阀型号：
NKJ61H-16C、NKJ61H-25C、NKJ61H-40C、NKJ61H-64C、NKJ61H-100C。
NKJ61H-16I、NKJ61H-25I、NKJ61H-40I、NKJ61H-64I、NKJ61H-100I。
NKJ61H-16P、NKJ61H-25P、NKJ61H-40P、NKJ61H-64P、NKJ61H-100P。
NKJ61H-16R、NKJ61H-25R、NKJ61H-40R、NKJ61H-64R、NKJ61H-100R。