1. Gate valves are usually put in on-off occasions and they are forbidden to be used to regulate the flow.

2. It is suggested to use gate valve with flexible or split wedge when the application scenarios are above 260℃, in that way stuck could be avoided out of thermal expansion.

3. When it comes to high velocity (turbulent) or thermal cycling, the threaded seat must be welded with the valve body. Please specify that when ordering.

4. After the gate valve is closed, you should reverse the stem for around 1/8 to 1/4 turn to relieve the pressure of the stem. This prevents the valve from impeding or damage even if the stem slightly expand in use.

5. Due to the different caliber size, application environment, and materials, certain gate valves require special installation. If the valve you order must be specially installed, you should indicate the direction of the valve when ordering.