We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

NIBCO 638-3/4 Wrot Copper Cup x FTG Elbow, 3/4 in CTS - Wrot Copper Tube Fittings
NIBCOWrot Copper Tube Fittings

NIBCO 638-3/4 Wrot Copper Cup x FTG Elbow, 3/4 in CTS

NIBCO Wrot Copper Tube Fittings. Specifications: Type: Cup x FTG, Wrot Copper.

SKU 3G-OTH-472618

Also listed as: 63834 · 638 3 4 · 638-3-4

Brand
NIBCO
Item
638-3/4 Wrot Copper Cup x FTG Elbow, 3/4 in CTS
Category
Wrot Copper Tube Fittings
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

NIBCO
Manufacturer Part Number
638-3/4
Type
Cup x FTG, Wrot Copper

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

NIBCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

NIBCO Wrot Copper Tube Fittings. Specifications: Type: Cup x FTG, Wrot Copper.

Frequently Asked Questions

What is a NIBCO sweat fitting elbow used for?

A NIBCO sweat fitting elbow connects copper tubing in plumbing and HVAC systems, allowing directional changes. The 3/4 in CTS cup x FTG design joins tubing on one end and fits over a pipe on the other, soldered for leak-free joints.

What are the specifications of the NIBCO 638-3/4 elbow?

The NIBCO 638-3/4 is a wrot copper sweat fitting elbow with 3/4 in CTS cup x FTG connections. It is designed for soldered installation in copper tubing systems, providing reliable flow direction changes in plumbing and heating applications.

Where to buy NIBCO sweat fitting elbows worldwide?

3G Electric supplies NIBCO sweat fitting elbows worldwide, handling logistics, customs, and delivery to your site. As a global industrial solutions provider, we source genuine NIBCO fittings like the 638-3/4 and support procurement across 14 departments.

How to install a NIBCO sweat fitting elbow?

To install a NIBCO sweat fitting elbow, clean and flux the copper tube ends and fitting cup. Assemble, heat evenly with a torch until solder melts into the joint, then cool. Ensure proper support and pressure testing after installation for leak-free performance.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from NIBCO

View all NIBCO parts
This NIBCO wrot copper tube fitting is a coupling with cup x FTG configuration and a dimple center stop for correct insertion depth. It joins two copper tube ends of the same size in plumbing and piping systems. The 1-1/2 in CTS connections are designed for sweat/solder installation
NIBCO
This NIBCO wrot copper tube fitting is a coupling with cup x FTG configuration and a dimple center stop for correct insertion depth. It joins two copper tube ends of the same size in plumbing and piping systems. The 1-1/2 in CTS connections are designed for sweat/solder installation
Wrot copper tube fitting coupling with cup x FTG ends and a dimple center stop for proper insertion depth. Designed for soldered connections joining 3-inch CTS copper tube in plumbing, HVAC, and industrial piping systems
NIBCO
Wrot copper tube fitting coupling with cup x FTG ends and a dimple center stop for proper insertion depth. Designed for soldered connections joining 3-inch CTS copper tube in plumbing, HVAC, and industrial piping systems
Wrot copper tee fitting with cup x cup x cup ends for sweat (solder) connections. Connects 1-1/4 in, 1 in, and 1/2 in CTS copper tubing. Used to branch or combine lines in plumbing and piping systems
NIBCO
Wrot copper tee fitting with cup x cup x cup ends for sweat (solder) connections. Connects 1-1/4 in, 1 in, and 1/2 in CTS copper tubing. Used to branch or combine lines in plumbing and piping systems
Wrot copper reducer coupling with solder-type female ends. Connects 3/8 in CTS to 1/4 in CTS copper tubing. Used in plumbing and hydronic heating systems for joining different tube sizes
NIBCO
Wrot copper reducer coupling with solder-type female ends. Connects 3/8 in CTS to 1/4 in CTS copper tubing. Used in plumbing and hydronic heating systems for joining different tube sizes
Wrot copper sweat fitting tee with cup x cup x cup ends for soldered or brazed joints. Connects three copper tube branches in plumbing, HVAC, and industrial piping systems. Reducing branch from 2 in to 3/4 in CTS
NIBCO
Wrot copper sweat fitting tee with cup x cup x cup ends for soldered or brazed joints. Connects three copper tube branches in plumbing, HVAC, and industrial piping systems. Reducing branch from 2 in to 3/4 in CTS
This wrot copper adapter joins 3/4 in CTS copper tube to 3/4 in male NPT threaded pipe. It is used for transitioning from copper tubing to threaded connections in plumbing and HVAC systems. The cup end is designed for soldered installation
NIBCO
This wrot copper adapter joins 3/4 in CTS copper tube to 3/4 in male NPT threaded pipe. It is used for transitioning from copper tubing to threaded connections in plumbing and HVAC systems. The cup end is designed for soldered installation
Wrot copper tee with cup ends for soldered connections. Used to branch or combine copper tubing in plumbing, HVAC, and industrial piping systems. Sizes: 1/2 in CTS x 3/8 in CTS x 3/8 in CTS
NIBCO
Wrot copper tee with cup ends for soldered connections. Used to branch or combine copper tubing in plumbing, HVAC, and industrial piping systems. Sizes: 1/2 in CTS x 3/8 in CTS x 3/8 in CTS
Wrot copper tee with cup x cup x cup ends for sweat (solder) connections. Used to branch or reduce flow in copper tubing systems for plumbing, hydronic heating, and chilled water lines. Sizes: 3/4 in CTS x 1/2 in CTS x 1/2 in CTS
NIBCO
Wrot copper tee with cup x cup x cup ends for sweat (solder) connections. Used to branch or reduce flow in copper tubing systems for plumbing, hydronic heating, and chilled water lines. Sizes: 3/4 in CTS x 1/2 in CTS x 1/2 in CTS