NIBCOWrot Copper Tube Fittings

NIBCO Sweat Fitting Adapter: 3/8 in CTS x 1/4 in Pipe, Cup x MNPT

SKU 3G-OTH-472613

Brand

NIBCO

Item

Sweat Fitting Adapter: 3/8 in CTS x 1/4 in Pipe, Cup x MNPT

Technical Specifications

NIBCO

Manufacturer Part Number

604R 3/8X1/4 

Type

Cup x MNPT, Wrot Copper 

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Technical Documents

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NIBCO Products

3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is NIBCO 604R 3/8X1/4 sweat fitting adapter used for?

This NIBCO wrot copper adapter connects 3/8 in CTS copper tube to a 1/4 in male NPT threaded pipe. It is used in plumbing, HVAC, and industrial systems for transitioning from sweat (solder) connections to threaded fittings.

What are the specifications of NIBCO 604R 3/8X1/4?

The NIBCO 604R is a cup x MNPT wrot copper adapter. It has a 3/8 in CTS sweat inlet and a 1/4 in male NPT threaded outlet. The manufacturer part number is 604R 3/8X1/4. It is designed for solder installation.

Where to buy NIBCO 604R 3/8X1/4 worldwide?

3G Electric supplies and delivers the NIBCO 604R 3/8X1/4 wrot copper adapter worldwide. We handle full logistics and customs clearance to ensure your order arrives at your facility, wherever it is located.

How to install NIBCO 604R 3/8X1/4 sweat fitting?

Clean and flux the copper tube end and the cup of the NIBCO 604R adapter. Assemble the joint, then apply heat evenly with a torch until solder melts into the cup. Allow to cool naturally before pressurizing the system.

Used in

Common applications for NIBCO

HVAC systems — NIBCO bronze ball valves (T58570UL series) for isolation and control in chilled water loops

Water treatment plants — NIBCO bronze gate valves (T29 series) for shut-off in filtration and distribution lines

Industrial burner systems — NIBCO brass ball valves (GB2A series) for fuel oil or gas supply lines

Chemical processing — NIBCO bronze ball valves with locking lever (T58570LL series) for safety-critical flow control

Steam systems — NIBCO bronze globe valves for throttling in low-pressure steam applications

General plumbing — NIBCO bronze ball valves (S58570 series) with sweat connections for copper piping in commercial buildings

NIBCO Products

3G Electric supplies NIBCO wrot copper tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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