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Copper pipe adapter with threaded male end

Nibco, Inc.

Nibco, Inc. 604 1-1/2" C x MNPT Copper Adapter

SKU CH-DVFC-39520 MPN 604

Connects 1-1/2 inch copper tubing to male NPT threads, rated to 408 psi at 100°F with a -20 to 400°F range per ASME B16.22

  • Product typeDrain Components
  • Wrot copper construction resists corrosion for long service life
  • 408 psi rating at 100°F handles high-pressure systems
  • 20°F to 400°F range suits extreme temperature conditions
  • ASME/ANSI B16.22 compliance ensures reliable code-approved installations
  • C x MNPT connection joins 1-1/2 in tube to male pipe threads

Copper Adapter for 1-1/2" Tube

The Nibco 604 adapter joins 1-1/2 inch copper tube to a 1-1/2 inch male NPT thread using a wrot copper body rated for hydronic and drainage service. It suits installers who need a permanent sweat-to-thread transition on 1-1/2 inch lines.

Check Tube Size and Thread Standard

Verify that the existing copper tube measures 1-1/2 inch nominal so the sweat end fits correctly. Confirm the mating component uses a 1-1/2 inch male NPT thread and that the system design accommodates a soldered joint rather than a press or compression connection.

Pressure and Temperature Limits

The fitting withstands 408 psi at 100 degrees F and operates continuously from -20 degrees to 400 degrees F. Wrot copper construction resists scaling and corrosion in closed-loop hydronic systems without adding mechanical noise or vibration.

How it compares

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

Price $7.99
Cheaper than about 88% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameNibco
Model name604 1 1/2
Product typeDrain Components

Questions about this item

Does the Nibco 604 copper adapter include solder or flux in the box?

The package contains only the wrought copper adapter; solder, flux and any pipe sealant must be purchased separately.

Should I choose a different model if my system runs hotter than 400 Degrees F?

The adapter is rated to 400 Degrees F maximum, so a higher-temperature fitting would be required for hotter service.

What does the 408 psi rating at 100 Degrees F mean for everyday plumbing pressure?

It indicates the fitting can safely handle 408 psi at 100 Degrees F, well above typical residential supply pressure.

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