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Brass dielectric union with polysulfone insulator, threaded and solder ends

Watts

Watts 1 LF3008 Dielectric Union 1 in 250 psi Brass Insulator Polysulfone

SKU CH-6P3N-GX3NX

Connects 1-inch threaded and solder joints with a polysulfone insulator rated to 250 psi and 33–180 °F

  • TypeDrain Components
  • Prevents galvanic corrosion with brass dielectric union
  • Withstands 250 psi maximum operating pressure
  • Operates from 33 to 180 degrees Fahrenheit
  • Polysulfone insulator ensures electrical isolation
  • Brass nut and NBR gasket provide secure seal

Dielectric Union Brass 1 Inch

The Watts LF3008 dielectric union joins copper piping to steel or iron systems while preventing galvanic corrosion. A brass body with polysulfone insulator separates dissimilar metals in potable water or hydronic installations. Threaded female connection on one end and solder socket on the other simplify integration. Rated for 250 psi maximum operating pressure.

Suits Copper To Steel Transitions

Installers joining copper tube to threaded steel pipe use this union to block electrolytic action without adding a separate dielectric nipple. The polysulfone insulator handles temperatures from 33 to 180 degrees Fahrenheit. Systems requiring higher pressure ratings or different end connections should select an alternative fitting.

Sustained Pressure And Temperature

Under continuous 250 psi service the brass nut and NBR gasket maintain a reliable seal across the full 33 to 180 degree Fahrenheit range. The polysulfone insulator resists thermal cycling without cracking or degrading dielectric strength. No performance loss occurs during extended operation at rated limits.

Highlights

  • Prevents galvanic corrosion with brass dielectric union
  • Withstands 250 psi maximum operating pressure
  • Operates from 33 to 180 degrees Fahrenheit
  • Polysulfone insulator ensures electrical isolation
  • Brass nut and NBR gasket provide secure seal

Specifications

TypeDrain Components
BrandWatts
Model1 LF3008

Questions about this item

What type of pipe connection does the 1 in female threaded end of the LF3008 require?

The LF3008 has a 1 in female threaded end that connects to a male threaded pipe or fitting using standard NPT threads and a suitable thread sealant.

Can the LF3008 dielectric union be soldered directly to existing copper pipe without damaging the polysulfone insulator?

The LF3008 features a 1 in female socket end for soldering; the polysulfone insulator and NBR gasket tolerate the 33 to 180 degrees F operating range, so standard soldering heat requires protecting the insulator from excessive temperature.

How can I verify the LF3008 is sealing correctly after installation and pressurisation?

Pressurise the system up to the 250 psi maximum operating pressure and inspect both the threaded and soldered joints for leaks; the NBR gasket and brass nut should maintain a watertight dielectric seal.

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