Advantages, disadvantages and uses of globe valves

The disadvantages of globe valves are as follows:

1. The fluid resistance is large, and the force required when opening and closing is large.

2. It is not suitable for media with particles, high viscosity, and easy coking.

3. Poor adjustment performance.

4. The type of globe valve is divided into external thread type and internal thread type according to the position of the stem thread. According to the flow direction of the medium, there are straight-through, direct-current and angular. The globe valve is divided into sealed forms, including packing sealed globe valve and bellows sealed globe valve.

5. The bellows seal globe valve adopts the bellows seal design, which completely eliminates the shortcomings of common valve stem packing seal aging and easy leakage, which not only improves the energy efficiency of use, increases the safety of production equipment, reduces maintenance costs and frequent Maintenance, also provides a clean and safe working environment.

Globe valve use

Globe valve refers to a valve in which the closing member (valve) moves along the center line of the valve seat. According to this form of movement of the valve flap, the change of the valve seat port is proportional to the stroke of the valve flap. Ammonia globe valve. Because the opening or closing stroke of the valve stem of this type of valve is relatively short, and has a very reliable cut off Function, and because the change of the valve seat port is proportional to the stroke of the valve flap, it is very suitable for adjusting the flow rate. Therefore, this type of valve is very suitable for shut-off or adjustment and throttle use. Once the valve flap of the globe valve is removed from the closed position, there is no more contact between its valve seat and the sealing surface of the valve flap, so its sealing surface