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Brass plumbing adapter pair, sweat connection, Legend Valve 800-874S

Legend Valve

Legend Valve 800-874S Adapter 3/4 SWT PR Body A

SKU CH-0Z7V-EBX1F

3/4-inch sweat adapters connect piping to LegendConnect Body A components, sold as a pair

  • LegendConnect sweat adapter simplifies copper pipe connections
  • 3/4 inch sweat fitting matches Body A radiator components
  • Supplied as a pair for balanced installation
  • Legend Valve manufacturing ensures consistent fitting quality
  • California Proposition 65 warning notes chemical hazards present

Adapter Pair for Body A

This Legend Valve adapter pair connects to Body A using 3/4 inch sweat fittings. The two-piece set suits installers joining copper pipework to the valve body in hydronic heating systems. It is supplied new and ready for professional installation.

Replaces Loose or Corroded Fittings

Swap out worn sweat adapters when leaks appear or during a scheduled boiler service. The upgrade is worth it when the existing connections show green corrosion or when a pressure test reveals seepage at the joint. A fresh pair restores a reliable seal without replacing the whole valve body.

Fits Standard 3/4 Inch Copper Pipe

The adapters accept 3/4 inch copper tube for direct sweat soldering into the circuit. No special tools beyond a torch and flux are required for the joint. California Proposition 65 warnings apply because the product contains chemicals known to cause cancer and reproductive harm.

How it compares

Measured against everything we stock in Radiator Fans & Boiler Parts, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 92% of the 95 comparable items (median $25.99).

Specifications

Product
Brand nameLEGEND VALVE

Questions about this item

What size sweat connection does the 3/4" adapter for Body A require?

The adapter uses a 3/4 inch sweat connection that is soldered directly to copper piping during installation.

Which step is most often missed when installing the LegendConnect sweat adapter pair?

Cleaning and fluxing both the pipe end and the adapter socket before soldering is the step most frequently skipped, leading to leak paths.

When should the LegendConnect 3/4" sweat adapter pair be inspected or replaced?

Inspect the soldered joints whenever the system is drained or pressure-tested; replace the adapter if corrosion, cracking or persistent seepage appears at the joint.

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