1·Close the inlet block valve on the hottest stream.
关闭温度较高的产品流上的入口隔断阀。
2·Close the inlet block valve on the coolest product stream.
关闭温度较低的产品流上的入口隔断阀。
3·Gradually open the inlet block valve on the hottest stream.
逐渐打开温度较高的产品流上的入口隔断阀。
4·Gradually open the outlet block valve on the hottest stream.
慢慢打开温度较高的产品流上的出口隔断阀。
5·Gradually open the inlet block valve on the coolest product stream.
逐渐打开温度较低的产品流上的入口隔断阀。
6·Gradually open the outlet block valve on the coolest product stream.
逐渐打开温度较低的产品流上的出口隔断阀。
7·But this time there is a stop block valve to prevent valve flap over top dead center and open.
而这时阀内有一个停止块来防止阀瓣超过上死点而打开。
8·The Block Valve has been put to trial in laboratory tests as well as thousands of installations.
在实验室试验中，关闭阀经受住几千次安装试验。
9·Three-way valve has three entrances and pipes, equivalent to two single-Block valves synthetic one.
三通阀有3个出入口与管道相连，相当于两台单座阀合成一体。
10·NIBCO's exclusive Block valve design greatly extends the life you ordinarily expect from a gate valve.
美国尼伯科特有的关闭阀设计极大地延长了传统闸阀的使用寿命。