| 1. | Common failure analysis of gate valve of concrete pump
闸板阀型混凝土泵常见故障分析 |
| 2. | Beveled gate provides positive shearing action
斜面闸板提供刚性剪切作用。 |
| 3. | Have bop ram opened up for internal inspection
打开防喷器闸板进行内部检查 |
| 4. | Dn 150 to dn 600 round hinged closures
第1部分:额定直径dn 150 - dn 600的圆形绞链式闸板 |
| 5. | Close the upper pipe ram and open the kill line valve
关上部钻杆闸板防喷器，开压井管线阀。 |
| 6. | Electric double disk parallel gate valves
电动平行式双闸板闸板 |
| 7. | Full pressure test the ram preventers
对闸板防喷器进行全压试压 |
| 8. | Double disk parallel gate valves
明杆平行式双闸板闸板 |
| 9. | Gate ground on both sides
闸板两面都经过研磨。 |
| 10. | Close the upper pipe ram
关上部钻杆闸板防喷器 |
