ANSI-125/150LB铸铁明杆闸阀结构尺寸/技术参数：
| ||||||||||
DN | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 |
| 1.5'' | 2'' | 2.5'' | 3'' | 4'' | 5'' | 6'' | 8'' | 10'' | 12'' |
L | 6.5'' | 7'' | 7.5'' | 8'' | 9'' | 10'' | 10.5'' | 11.5'' | 13'' | 14'' |
H | 10'' | 10.5'' | 11'' | 12'' | 16'' | 18'' | 22'' | 28'' | 35'' | 44'' |
D | 5'' | 6'' | 7'' | 7.5'' | 9'' | 10'' | 11'' | 13.5'' | 16'' | 19'' |
Application | ||||
1 | Face to Face is According to ANSI B16.10 | |||
2 | Flange drilled is According to ANSI B16.1 | |||
Test | ||||
Workingpressure | 125PSI | 150PSI | ||
TestpressureShell | 21.1kgf/cm2 | |||
Seat | 15.0kgf/cm2 | |||
Components | ||||
阀体Body | CAST IRON（A126） | |||
阀盖Bonnet | CAST IRON（A126） | |||
阀杆STEM | STAINLESS STEEL（SS410） | |||
阀板DISC | CAST IRON（A126） | |||
阀环SEATRING | CAST BRONZE/STAINLESS STEEL（B62） | |||
格兰GLAND | DUCTILE IRON（FCD45） | |||
迫紧PACKING | NOT ASBESTOS | |||
手轮HANDWHEEL | CAST IRON（A126） | |||
美标ANSI-125/150LB铸铁明杆闸阀的阀杆带动闸板一起升降，阀杆上的传动螺纹在阀体外部，因此，可根据阀杆的运动方向和位置直观地判断闸板启闭和位置，而且传动螺纹便于润滑和不受流体腐蚀，但它要求有较大的安装空间。
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