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Watts LF3003 dielectric union trap brass steel 1 inch FIP FBP 250 psi 33 to 180 degrees F

Watts

Watts 1 LF3003 Dielectric Union Trap

SKU CH-6Q0V-8FG0N

Connects dissimilar metal pipes without galvanic corrosion using a polysulfone insulator rated for 250 psi and 33 to 180 degrees F

  • TypeDrain Components
  • MaterialLead Free Brass, Steel
  • Lead-free brass prevents corrosion
  • Steel construction handles 250 psi pressure
  • Polysulfone insulator blocks galvanic action
  • NBR gasket seals from 33 to 180 degrees F
  • 2-1/2 inch length fits standard piping

Dielectric Union for Plumbing Systems

The Watts 1 LF3003 Dielectric Union Trap connects dissimilar metal piping without galvanic corrosion. Lead-free brass and steel construction with a polysulfone insulator suits potable water lines. Installers use it where copper meets steel in residential or commercial systems. The NBR gasket seals the joint at the rated pressure.

FIP to FBP Threaded Connection

Female iron pipe threads on one end meet female British pipe threads on the other for direct assembly. No special tools beyond standard pipe wrenches are required for installation. The 2 1/2 inch overall length fits tight runs without extra fittings. Zinc-plated steel nuts secure the union against vibration.

250 psi Rating from 33 to 180 Degrees F

The union withstands 250 psi maximum operating pressure across the full temperature range. Hot water circulation up to 180 degrees F stays within the polysulfone insulator limits. Cold water supply down to 33 degrees F will not embrittle the NBR gasket. Systems exceeding either limit need a different component.

Highlights

  • Lead-free brass prevents corrosion
  • Steel construction handles 250 psi pressure
  • Polysulfone insulator blocks galvanic action
  • NBR gasket seals from 33 to 180 degrees F
  • 2-1/2 inch length fits standard piping

Specifications

TypeDrain Components
MaterialLead Free Brass, Steel
BrandWatts
Model1 LF3003

Questions about this item

What is the maximum operating pressure this dielectric union can handle?

The union is rated for 250 psi maximum operating pressure, so sustained use above that limit is not supported.

How much heat can the polysulfone insulator and NBR gasket take during continuous operation?

The assembly is rated from 33 to 180 degrees F, so all-day running at the top of that range is within spec.

Which pipe threads must already be on the job for this 1-inch FIP-by-FBP union to connect?

You need a 1-inch female iron-pipe thread on one side and a 1-inch female British parallel thread on the other.

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