Marine Threaded Plug Valve
Plug valve refers to a valve in which the closing member (plug) rotates around the center line of the valve body to open and close. Plug valves are mainly used in pipelines to cut off, distribute and change the flow direction of media.
Overview
Threaded Connection of Plug Valve
1. Accumulation of hard slag, dirt or any foreign material in the pipeline may hinder the efficiency of the plug valve and seriously damage the key components of the valve. The inside of the pipe must be thoroughly cleaned with air or steam.
2. When tapping a pipe, measure the size and length of the pipe threads to avoid filling the valve seat and disc with the pipe.
3. Clean thread ends thoroughly to remove any harmful steel or iron deposits. If you want a stronger weld, use Teflon tape or pipe adhesive. Use pipe adhesive only sparingly on pipe threads, but never on valve threads. Do not allow any pipe adhesive to flow into the valve body to avoid damage to the valve disc and seat.
4. Before installation, cut off the flow of fluid through the plug valve to make the plug valve work properly. Completely close the stopcock before installation. Place the wrench on the head of the hexagonal bolt close to the pipe to avoid possible deformation. After installing the plug valve, support the pipe: sagging pipes will deform the plug valve and cause failure.
Images of Marine Threaded Plug Valve
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