Day: March 16, 2012

When should you use an external equalized TEV?

These figures show the internal differences between the internal and external equalized valves. In the externally equalized valve, there is packing(blue line) around the push rods that keep outlet pressure away from the diaphragm. Instead, suction pressure is applied to the evaporator side of the diaphragm through tubing. The external equalizer type of valve must …

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