Barlow Insulated Flange Joint for electrical isolation to support cathodic protection

For nearly 60 years the Barlow Insulated Flange Joint has been the preferred insulating method for many gas transmission and distribution companies on the east coast. Founded and developed by an engineer in the 1940s, Barlow products were marketed regionally for decades. With the recent acquisition of IMAC International, Barlow Insulating Joints are now being recognized as a reliable source and are now distributed nationally.

The Barlow flanges are fully assembled and factory tested before shipping from stock. Having two butt welds allow for the easiest and safest installation method for electric isolation to support cathodic protection.  The flanges are also stronger than most alternatives. They are extremely reliable and long lasting with no reported failures. 

Why rely on the availability of foreign manufacturers when Barlow monolithic Insulating joints are manufactured domestically, competitively priced and offer stock delivery on most sizes? Should supplies become depleted, product availability is 3 – 6 weeks rather than the staggering lead times of European sources. 

Download Barlow Insulated Flange Brochure

Other Barlow products include:

• Insulated Joint Testation - to monitor electric currents around insulating couplings and joints.
• Insulated Flange Joint Arrestor (TMK) - curb the electrical breakdown of insulated flanges

• ANSI CL 150 / 300 / 600 2” – 30”

  Monolithic VSI Weld-In Insulator - Heavy duty insulator easily welded in place 2” – 6” ANSI 300 Class 

Related Articles:

"What are the pros and cons of using monolithic insulating joints versus insulating flange kits?"