VCS Flange Isolation Kits

DouBle Washer Set 

Double washer set flange isolation kits include the following components for each bolt:

Two – 1/8” thick steel washers

Two – Isolating washers

One-Full length isolating sleeve

Flange Isolation Kits

Single Washer Set

Single washer set flange isolation kits include the following items for each bolt:

One – 1/8” thick steel washer

One – Isolating washer

One – Isolating sleeve

Application Considerations

In buried applications, single washer configurations may be used to allow the Cathodic Protection (CP) current to reach the nuts and bolts. If desired, nuts on the opposite side of the cathodically protected flange may be included as part of the CP system.

Double Washer Set 

Double washer set flange isolation kits include the following components for each bolt:

Two – 1/8” thick steel washers

Two – Isolating washers

One – Full length isolating sleeve

Application Considerations

Double washer configurations may be used for added protection against the possibility of “shorting out” the nuts and bolts. In

addition, double washer sets electrically isolate the nuts and bolts from both flanges