Globe valves have the following advantages:

1. The structure is simple, and it is more convenient to manufacture and maintain.

2. The working schedule is small, and the opening and closing time is short.

3. Good sealing performance, low friction between sealing surfaces and long life.

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. Not suitable for media with particles, high viscosity and easy to coking.

3. Poor adjustment performance.

The types of globe valves are divided into external thread type and internal thread type according to the position of the valve 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.

The installation and maintenance of the globe valve should pay attention to the following items:

1. The shut-off valve operated by hand wheel and handle can be installed at any position of the pipeline.

2. Handwheel, handle and great moving mechanism are not allowed to be used for lifting.

3. The flow direction of the medium should be consistent with the arrow direction shown in the valve body.