We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Watts

Watts 3200 3" Dielectric Flange Cast Iron Threaded

SKU CH-BGTX-Y5H1S

A 3-inch cast-iron threaded dielectric flange rated for 175 psi and 33 to 180 degrees F

  • Dielectric flange prevents galvanic corrosion between dissimilar metals
  • 175 psi maximum operating pressure handles demanding plumbing systems
  • Polysulfone insulator provides reliable electrical isolation
  • Cast iron zinc-plated galvanized construction resists corrosion
  • Operating range from 33 to 180 degrees Fahrenheit suits varied installations

3-Inch Dielectric Flange for Galvanic Isolation

This Watts 3200 flange connects 3-inch female threaded pipework while blocking galvanic corrosion between dissimilar metals. The polysulfone insulator separates the cast iron body from the mating surface so the joint stays electrically isolated. It suits new commercial or residential plumbing installations where copper, steel or brass lines meet.

Pressure and Temperature Limits for Threaded Service

The fitting is rated for 175 psi maximum operating pressure and a fluid temperature range of 33 to 180 degrees Fahrenheit. These figures define the practical envelope for hot-water, chilled-water or low-pressure steam lines using standard threaded connections. Systems that exceed either limit will require a different flange class or joining method.

Cast Iron Body with Four-Bolt Pattern

The zinc-plated galvanized cast iron body resists external corrosion in mechanical rooms or exposed runs. Four bolt holes align with standard 3-inch companion flanges, and the gray finish matches common piping aesthetics. Fasteners are not included, so the installer supplies bolts, nuts and gaskets to complete the joint.

Highlights

  • Dielectric flange prevents galvanic corrosion between dissimilar metals
  • 175 psi maximum operating pressure handles demanding plumbing systems
  • Polysulfone insulator provides reliable electrical isolation
  • Cast iron zinc-plated galvanized construction resists corrosion
  • Operating range from 33 to 180 degrees Fahrenheit suits varied installations

Specifications

BrandWATTS

Questions about this item

Which Watts 3200 flange should I select for my pipe size?

Choose the 3 inch threaded cast iron model when your piping is three inch nominal and you need a dielectric connection.

What does the 175 psi rating mean once the flange is installed?

It is the maximum operating pressure the joint can handle continuously at temperatures between 33 and 180 degrees Fahrenheit.

How does the polysulfone insulator affect the connection standard?

The polysulfone insulator breaks electrical continuity between dissimilar metals while the four bolt holes match standard three inch flange bolt patterns.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.