How to remove a DN1200 gate valve when the copper nut and screw rod are stuck together
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The DN1200 gate valve’s copper nut is fixed to the screw rod; now that the turbine head has been removed, the copper nut is exposed. How can it be removed?
That’s not called a turbine head; it’s called a bevel gear head. Is it used in high-temperature conditions? First, remove the fasteners in the middle section; take the valve stem out of the gate plate first
To remove the bevel gear, first loosen the bolts that hold it in place. Then turn the handwheel until the bevel gear comes loose, and after that, lift it out
Why is it stuck? Deformed valve stem?
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