1) The friction force is small. During the opening and closing process, the friction force between the valve disc and the sealing surface of the valve body is relatively small, and it is smaller than that of the gate valve, so it is wear-resistant; 2) The opening and closing height is small, and the opening height is generally only 1/4 of the diameter of the valve seat channel; 3) Good sealing performance. Usually, there is only one sealing surface on the valve body and the valve disc, so the manufacturing process is better and it is easy to maintain; 4) Precision casting valve body The valve body adopts precision casting, and the precise geometric size enables the valve body to ensure the sealing performance of the valve without any finishing.
Overview
The globe valve is a valve whose closing member moves along the center line of the valve seat and is sealed with copper alloy. It has a very reliable shut-off function, and because the change of the valve seat port is proportional to the stroke of the valve disc, it can be used in tap water. , Sewage, construction, food, electricity, medicine, metallurgy, textile, energy systems and other fluid pipelines for cutting use.
Implement the standard
1) Design and manufacturing standards: GB/T12235-2007, GB/T12233-2006
2) Connection flange standard: GB/T9113-2010, GB/T17241.6-2010 (iron)
3) Structure length standard: GB/T12221-2005
4) Pressure test standard: GB/T13927-2008
Main technical parameters
Nominal pressure (Mpa) | Strength test MPa | Seal test MPa | Applicable temperature (℃) | Applicable medium |
1.0 | 1.5 | 1.1 | ≤200℃ | water, air, steam, oil |
1.6 | 2.4 | 1.76 |
Material of main parts
Part Name | Material |
Body | HT200/QT450-10, WCB |
Bonnet | HT200/QT450-10, WCB |
Disc | 2Cr13+Copper |
Stem | 2Cr13 |
Gasket | XB450 |
Valve seat | Copper |
Filler | Asbestos |
