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Steam radiators can provide latent heat to our home especially in the cold weather. The operating principle of steam radiator is to heat water to the point then it will convert into steam, which is distributed through the house via radiators. But after a long time use, the packing around the steam radiator will wear off, causing leaks of the valve. However, this problem can be easily solved by ourselves if you will follow the instructions below.
 More Instructions
1), Turn off the thermostat and allow the system to cool. Close the intake valve on the leaking radiator by turning the handle in a counterclockwise direction.
2), Remove the screw on top of the valve handle with a screwdriver; lift the handle off the valve assembly. Locate the packing nut at the bottom of the valve stem. Loosen the nut with a crescent wrench, turning counterclockwise. Remove the packing nut from the stem. Remove the old gasket and any other debris from inside the nut with the needle-nose pliers.
3), Wrap 3 to 4 inches of graphite valve packing loosely around the valve stem in a clockwise direction. Do not stretch or break it.
4), Replace the packing nut and tighten it  by using the crescent wrench in a clockwise direction. When the nut is tight, it will compress the graphite packing into a new gasket. Replace the handle and the screw. Turn the handle in a clockwise direction to open the valve.
5), Turn on the thermostat to check if there is leaks.

 


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