Dielectric Unions

Dielectric unions are used to separate two dissimilar metal pipes (such as copper pipes and galvanized steel). Purpose of dielectric unions is to prevent galvanic corrosion, which is caused by electrolysis.

6 products
Sort by: List Grid
Part#: DU012CF-LF | Brand: Wright Valves
In Stock | Pick Up available
x1
$2.25/each
x10
$21.50
($2.15/each)
Part#: DU034CF-LF | Brand: Wright Valves
In Stock | Pick Up available
x1
$2.95/each
x10
$28.00
($2.80/each)
Part#: DU100CF-LF | Brand: Wright Valves
In Stock | Pick Up available
x1
$4.45/each
x10
$42.50
($4.25/each)
Part#: DU114CF-LF | Brand: Wright Valves
In Stock | Pick Up available
x1
$6.45/each
x5
$30.75
($6.15/each)
Part#: DU112CF-LF | Brand: Wright Valves
In Stock | Pick Up available
x1
$9.25/each
x4
$35.00
($8.75/each)
Part#: DU200CF-LF | Brand: Wright Valves
In Stock | Pick Up available
x1
$15.95/each
x2
$30.30
($15.15/each)



Electrolytic corrosion occurs in plumbing systems that contain dissimilar metals. The process of corrosion is rapid when the water is present in the system, since it acts as a medium between the two metals. The three components: water and two metals, form a "battery", where electric current carries ions from one metal to another, causing it to dissolve. The washer inside the union prevents such current from flowing, thus preventing corrosion itself.

The following was added to your shopping cart: X
Continue shoppingCartProceed to Checkout