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Bundor - Butterfly, Gate, Check, Ball, Globe Valve Manufacturer, Supplier & Distributor
The purpose and characteristics of globe valve
Posted by Bundor valve
The valve disc is driven by the stem,along the axis of the sealing surface of the seat to do lifting movement and achieve the purpose of opening and closing the valve,known as the globe valve. So what is the purpose and characteristics of globe valve? Bundor Valve will give you an introduction in this article.
Purpose of globe valve
Globe valve is a kind of block valve,used to cut off or connect the medium in the pipeline.Small size globe valve use thread connection or welding,larger diameter of the globe valve use flange connection or welding.
The globe valve is mainly driven by handwheel or gear,and in the case of automatic operation,it can also be driven by electric,pneumatic,hydraulic,etc.
The fluid resistance of the globe valve is very large,and the opening and closing torque is also large,which affects its application in large diameter occasions.To extend the application of the globe valve,a bypass valve can be installed to balance the pressure in the pipes on both sides of the main valve opening and closing parts.
There are small holes in the plunger of the high pressure balance globe valve,in order to make the upper and lower pressure balance,opening and closing torque reduction,and it has the same function as the bypass valve,suitable for high pressure large caliber occasions.
Characteristics of globe valve
Advantages
1.Structure is simpler than gate valve,manufacture and maintenance are more convenient.
2.Sealing surface is not easy to wear and abrasion,the sealing performance is good,and there is no relative sliding between disc and valve body sealing surface when opening and closing,so wear and abrasion are not serious,good sealing performance and long service life.
3.When opening and closing,the disc stroke is small,so the height of the globe valve is smaller than the gate valve,but the structure length is longer than the gate valve.
Disadvantages
1.Opening and closing torque is large,more laborious,and takes a long time.
2.The fluid resistance is large,because the medium channel in the valve body is tortuous,the fluid resistance is large and the power consumption is also large.
3.Disc is often washed out when fully open.
Purpose of globe valve
Globe valve is a kind of block valve,used to cut off or connect the medium in the pipeline.Small size globe valve use thread connection or welding,larger diameter of the globe valve use flange connection or welding.
The globe valve is mainly driven by handwheel or gear,and in the case of automatic operation,it can also be driven by electric,pneumatic,hydraulic,etc.
The fluid resistance of the globe valve is very large,and the opening and closing torque is also large,which affects its application in large diameter occasions.To extend the application of the globe valve,a bypass valve can be installed to balance the pressure in the pipes on both sides of the main valve opening and closing parts.
There are small holes in the plunger of the high pressure balance globe valve,in order to make the upper and lower pressure balance,opening and closing torque reduction,and it has the same function as the bypass valve,suitable for high pressure large caliber occasions.
Characteristics of globe valve
Advantages
1.Structure is simpler than gate valve,manufacture and maintenance are more convenient.
2.Sealing surface is not easy to wear and abrasion,the sealing performance is good,and there is no relative sliding between disc and valve body sealing surface when opening and closing,so wear and abrasion are not serious,good sealing performance and long service life.
3.When opening and closing,the disc stroke is small,so the height of the globe valve is smaller than the gate valve,but the structure length is longer than the gate valve.
Disadvantages
1.Opening and closing torque is large,more laborious,and takes a long time.
2.The fluid resistance is large,because the medium channel in the valve body is tortuous,the fluid resistance is large and the power consumption is also large.
3.Disc is often washed out when fully open.