4, globe valve: refers to the closing parts (disc) along the center line of the valve seat movement. According to the moving form of the disc, the change of the valve seat opening is directly proportional to the disc stroke. Due to this kind of valve stem open or close stroke is relatively short, and has a very reliable cut off function, and because of the change of the valve seat opening and the stroke of the disc is directly proportional, very suitable for flow regulation. Therefore, this type of valve is very sensitive to cutting or regulating and throttling.
Advantages:
(1) In the process of opening and closing, due to the friction between the disc and the valve body sealing surface is smaller than the gate valve, so the wear resistance.
② The opening height is generally only 1/4 of the valve seat channel, so much smaller than the gate valve;
(3) usually there is only one sealing surface on the valve body and disc, so the manufacturing process is better, easy to maintain;
④ As the filler is generally a mixture of asbestos and graphite, it has a high temperature resistance grade. General steam valves are used by the globe valve.
Disadvantages:
(1) Because the flow direction of the medium through the valve has changed, so the small flow resistance of the globe valve is higher than most other types of valves;
② Due to the longer stroke, the opening speed is slower than ball valve.

Nortech is one of the leading industrial valve manufacturers in China with quality certification ISO9001.

Major products: Butterfly Valve, Ball Valve,Gate Valve, Check Valve, Globe Vavlve,Y-Strainers, Electric Acurator , Pneumatic Acurators .

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