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Bronze DWV threaded piece trap, 1 1/4 inch sweat and MNPT connections

Nibco, Inc.

Nibco, Inc. 802F 11/4 DWV Threaded Piece trap

SKU CH-B691-71QN5 MPN 802F

A bronze DWV threaded piece connects 1 1/4 in copper tube to 1 1/4 in male pipe threads, rated 466 psi at 200 °F and up to 400 °F

  • Product typeDrain Components
  • Main materialHAWA
  • Bronze construction resists corrosion in drainage systems
  • DWV threaded piece connects 1 1/4 in copper tube to MNPT fitting
  • Rated for 466 psi at 200°F maximum operating pressure
  • Withstands temperatures up to 400°F in non-potable applications
  • Sweat fitting adapter simplifies copper tube installation

DWV Threaded Piece for Drain Systems

This DWV threaded piece connects copper tubing to male pipe threads in drainage, waste and vent installations. The bronze body accepts a 1 1/4 inch copper tube on the sweat end and matches a 1 1/4 inch MNPT connection on the threaded end. It is rated for 466 psi at 200 degrees F and handles temperatures up to 400 degrees F.

For Plumbers Using Copper DWV Lines

Installers joining copper DWV tube to threaded fittings or equipment will find the correct sweep and thread dimensions here. The part is not intended for potable water lines and does not suit press-fit or push-fit copper systems that require a different connection method.

Sweat-to-MNPT Bronze Adapter

The defining specification is the sweat cup for 1 1/4 inch copper tube paired with a 1 1/4 inch MNPT thread in a single bronze casting. This combination determines whether the fitting matches the pipe size and joint type specified for the job.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 72% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameNibco
Model name802F 11/4
Product typeDrain Components
Size & build
Main materialHAWA

Questions about this item

How do I sweat the 1 1/4 in copper tube side of this DWV threaded piece without overheating the bronze body?

Clean the copper tube end and fitting cup, apply flux, then heat the cup evenly with a propane torch until solder flows; avoid directing flame at the threaded MNPT end to prevent bronze distortion.

Will the bronze threads or sweat joint need periodic re-sealing in a DWV system?

Bronze resists corrosion in drain-waste-vent service; the sweat joint is permanent, and the MNPT threads only require fresh pipe-thread sealant if the joint is ever disassembled.

At what temperature does the 466 psi pressure rating cease to apply during continuous hot-water discharge?

The 466 psi rating is specified at 200 °F; above that temperature the allowable working pressure decreases, reaching zero at the 400 °F maximum operating limit.

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