Lift type globe valve is operated by rotating the valve stem to raise or lower the valve core.

 

First: Structure and usage of lifting globe valve

Lift type globe valve is a traditional valve type that has good cutting performance and is suitable for high temperature and high pressure applications. The main structure of this valve consists of several parts such as valve body, valve cover, valve stem, valve core, sealing ring, and handwheel.

 

When using a lift type globe valve, the first thing to pay attention to is its position, usually installed perpendicular to the pipeline. At the upper and lower parts of the valve, the two ends of the pipeline where the valve is located can be connected respectively. During normal use, the operation of opening and closing the valve is simple, just rotate the valve stem with the handwheel. In general, rotating the valve stem clockwise can open the valve, while rotating it counterclockwise can close the valve.

 

Second: How to correctly open the lifting globe valve

The correct operating method is very important, otherwise it can easily cause the gate to get stuck or the seal to fail. The following are the steps to correctly open the lifting globe valve:

 

A, check if the valve is in the closed state. If it is already open, rotate the valve clockwise to close it;

 

B. Then use a wrench to loosen the fixing bolt of the handwheel and remove the handwheel;

 

C. Rotate the valve stem to the maximum limit position, and then use a wrench to remove the sealing ring and valve core;

 

D. Clean the valve core and sealing ring to ensure there are no impurities, and then reinstall them;

 

E. Reinstall the handwheel onto the valve stem and secure it with fixing bolts;

 

F. Rotate the handwheel clockwise and gradually open the valve until it is fully opened.

 

Third: Precautions and common questions

1. The contact surface between the valve seat and the valve core needs to be kept clean regularly to avoid jamming;

2.If the gate is found to be stuck or the seal fails, the sealing ring should be replaced or the valve should be repaired in a timely manner;

3. During use, it is necessary to maintain a relaxed and smooth rotation operation, and not use excessive force;

4. Valves that are not used for a long time need to be kept sealed to prevent rusting and damage.

 

In summary, lift type globe valves are a common type of valve widely used in both industrial and civilian markets. Proper use and maintenance of lift type globe valves can extend their service life and ensure equipment safety.

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