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.

5 products
Sort by:
Add to card
Product Description Part# / Brand Qty Unit Price
1/2" Dielectric Union (C x F), Lead-Free

01102W
Webstone Valves
x1
$2.95 / each
x10
$27.50 / box
($2.75 / each)
3/4" Dielectric Union (C x F), Lead-Free

01103W
Webstone Valves
x1
$3.35 / each
x10
$32.00 / box
($3.20 / each)
1" Dielectric Union (C x F), Lead-Free

01104W
Webstone Valves
x1
$4.75 / each
x10
$45.00 / box
($4.50 / each)
1-1/4" Dielectric Union (C x F), Lead-Free

01105W
Webstone Valves
x1
$6.75 / each
x10
$64.50 / box
($6.45 / each)
1-1/2" Dielectric Union (C x F), Lead-Free

01106W
Webstone Valves
x1
$10.10 / each
x10
$97.50 / box
($9.75 / each)
Add to card

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