We purchased dielectric unions to help avoid galvanic corrosion between a copper nipple and steel pipe. Problem is, the unions are steel on both sides of the isolator. So now we have a copper nipple threaded to the steel union. Are there different uses of dielectric unions? Or are we using...
We have a situation where a copper HVAC coil headder is connected to a copper nipple which is then connected to a "dielectric union". On the other side of the dielectric union is steel piping. The dielectric union was specified in order to avoid Galvanic corrosion. Unfortunately, both sides...
