What is the difference between a flange balance valve and a flange gate valve? A flange gate valve is a gate valve with a flange connection method, which is more common. Flange gate valves are stable and reliable when used in pipelines, so they are often used in high-pressure pipelines. The flange balance valve has good flow characteristics that can reasonably distribute flow and achieve flow quantification. Due to its opening indication, opening locking device, and pressure measuring small valve used for flow measurement, as long as a balance valve of appropriate specifications is installed in each branch and user inlet, and a specialized intelligent instrument is used for one-time debugging and locking, the total flow of the system can be controlled within a reasonable range, Thus, the phenomenon of "unstable traffic size" is overcome. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled.

Precautions for flange gate valves:

Handwheels, handles, and transmission mechanisms are not allowed for lifting purposes, and collisions are strictly prohibited.

Double gate valves should be installed vertically (i.e. the valve stem is in a vertical position and the handwheel is at the top).

Gate valves with bypass valves should be opened before opening (to balance the pressure difference between the inlet and outlet and reduce the opening force).

Install the gate valve with transmission mechanism according to the product manual.

If the valve is frequently opened and closed, lubricate it at least once a month.

Advantages of flange gate valves:

1. The fluid resistance is small, and the sealing surface is less susceptible to medium brushing and erosion.

2. Opening and closing are more effortless.

3. The flow direction of the medium is unrestricted, does not disturb flow, and does not reduce pressure.

4. Simple form, short structural length, and wide applicability.

Disadvantages of flange gate valves:

1. The sealing surfaces are prone to erosion and scratches, making maintenance difficult.

2. The overall size is relatively large, requiring a certain amount of space for opening and closing, and the opening and closing time is long.