The Description of Globe Valves

Valves such as globe valves, gate valves, butterfly valves, check valves and ball valves are indispensable in various piping systems. Each valve differs in appearance, structure and function. For example, the structure of the gate valve is more complicated than the globe valve. So when you want to buy a globe valve, its structure, classifications, features and other installation information are what you should know. Here is the description of the globe valves.

The globe valves are the kind of valves which are forced to seal. So when the valve is closed, pressure must be given to the valve disc so as to avoid the sealing surface leakage. When the medium enters into the valve from the disc, the operating force needs to overcome the resistance that mix the friction of the stem and filler with the pressure generated by the medium. There needs more physical strength to close the valve than opening, so the diameter of the stem is longer, otherwise the top of stem will bend.


When the globe valves are used, the medium can only flow in one direction and cannot change the direction. The globe valves are a kind of widely used valves. The reason why they are popular is that during the opening and closing, the friction of sealing surfaces is really small, which means the valves are relatively durable. The opening height is short, meanwhile the globe valves are easy to manufacture, easy to repair. They are not only suitable to medium and low pressure, but also to high pressure. The closing principles of the globe valves are to rely on the pressure from stem, so that the sealing surface of disc and seat ring will closely stick together, stopping the flow of medium.

The globe valves with lifting rotary lever can be used to control the flow of various types of fluids such as air, water, steam, corrosive mediums, mud, oil, liquid metal and radioactive mediums. However, the globe valves are not appropriately to be applied to mediums with particles or in high viscosity, which are easy to coke. Because of the relatively short opening or closing stroke of the stem, the globe valves are reliable to cut mediums. Besides, the change of the seat ring opening is proportional to the stroke of the valve disc. In short, globe valves are ideal for cutting , regulating and throttling the flow of medium.

Classification of Baltic Globe Valves
Baltic has a total of 11 globe valves, including 2 Bellows Seal Globe Valves, 9 Bolted Bonnet Globe Valves, which own wide applications in electric power, petroleum refining, petrochemical engineering, offshore oil, tap water engineering in urban construction, chemical engineering, etc. As one of the most important stop valves, the globe valves play an important role in the aerospace. The globe valves as an important component of aerospace equipment convey, cut off, adjust the medium. The sealing directly affects the safety and reliable operation of aerospace equipment. Thus studying the key factors and rules affecting the typical globe valves sealing has directive meaning to the structural design of the valve sealing, as a result, improving the sealing capability of the valve.


Features of Baltic Globe Valves
1.With special design such as OS&Y, bolted bonnet, rising stem.
2.Having short stroke for easy and quick open or close.
3.For large size and high pressure, owning relief cone in internal bypass.
4.The disc sealing is flat sealing, throttle cone used as regulating disc, which lengthens the service life of globe valves.
5.The body seat could be threaded seat or welded seat.

The Installation and Maintenance of Globe valves
1. The globe valves operated by stems or handwheels can be installed at any position of the pipeline.
2. Handwheels or stems are not allowed to be used for lifting.
3. The flow direction of the medium should be consistent with where the arrows in valve body direct at.

Baltic has been providing customers with reliable globe valves all the time. We are strict with each process from selecting materials, processing materials, testing products, packaging, storage, and transportation. Providing that you are satisfied with our globe valves, you can order right now! Providing that you want to know more about the qualified globe valves with ideal budget, please contact us, the specialists are always waiting for you! (Editor: Megan Jeawin)