S20、S21对夹式蝶阀双向气密紧急关闭-下游法兰/阀板处于关闭位置衬胶阎座金属阔板/|匈轩1-20(25-500mm)150 psi (10.3 Bar)
S22、S23对夹式气动蝶阀双向气密紧急关闭-下游法兰/阀板处于关闭位置所有阀门12-24(50-600mm)I 150 psi (10.3 Bar)管线束端服
日本ULVAC真空阀门:VLH-U/US(VLH-U1/2/3/4/6/8/10/11等);VLH-US-KF(VLH-US-25/40/50KF);VLP-US(VLP-U1/2/3/4/6/8/10/12/14