| 1. | Gate valves are not designed for throttling service
长期处于未全开状态通常会损坏阀座表面。 |
| 2. | When the water supply is cut in , the valve is in wide open position
当水供应进入时，阀门处于全开状态。 |
| 3. | The flow coefficient ( cv ) listed in the tables apply to fully open valves only
表中所列流量系数仅适用于全开状态下的阀门。 |
| 4. | When the test is completed the trim valves must be returned to a fully open position
测试完成后，这些阀门必须恢复到全开状态。 |
| 5. | V - shaped bar bent to a half - circle is attached to the body , close to the front of the disc in full open position
一个v形杆弯曲成半圆状附加在阀体上，在阀门处于全开状态时紧靠阀瓣前部。 |
| 6. | A v - shaped bar bent to a half - circle is attached to the body , close to the front of the disc in full open position
一个v形杆弯曲成半圆状附加在阀体上，在阀门处于全开状态时紧靠阀瓣前部。 |
| 7. | Infrared protect : when the door falls , such as touching off the infrared protector , cause the short circuit , door then is it to hold state all
外保护：当门下行时，如触发红外保护装置，引起短路，则门自动反弹至全开状态。 |
| 8. | Flow coefficients at other than fully open may be approximated by use of the characteristic flow curves for tilting disc check and globe valves
不是全开状态的流量系数可以采用适用于提升式阀瓣止回阀和截止阀的流量特性曲线进行估算。 |
| 9. | When used for balancing water distribution systems , valves should always be in the fully open position at the commencement of any commissioning or flushing exercises
如果用于平衡水分流系统，那么在投入运行或进行冲洗作业的开始阶段，阀门应该总是处于全开状态。 |
| 10. | It is mainly used as cut - off valve and also can be designed as regulating or cut - off / regulating combined valve . currently , butterfly is mainly used in the low pressure large size pipelines
在蝶阀阀体圆柱形通道内，圆盘形蝶板绕着轴线旋转，旋转角度为0 ~ 90之间，旋转到90时，阀门则牌全开状态。 |
