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Several days ago, I exactly read something about the question in DSMATERIALA's website. Now we share with it. The valve is used to regulate flow control such as to control the flow levels of gas, liquids and steam. It is necessary to dismantle a valve when you are either replacing a gate valve or repairing it. The procedures are list in following descriptions:

1, Turn off the main medium supply before dismantling the gate valve.

2.Take the screwdriver and remove the nut and the hand wheel from the top of the gate valve.

3.Unscrew the packing nut from the stem and remove the gland spring along with the packing gland from the top portion of the bonnet.

4.Remove all the nuts, lock washers and cap screws that are visible on the valve body and bonnet.

5.Take the bonnet, the gasket and the disc riser off of the stem. Unbolt the stem from the bonnet to complete the process.

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Q: How do you dismantle a gate valve?
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