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NIBCO 633W 3/4 Wrot Copper Cup x Cup Union for 3/4 in CTS Tubing - Wrot Copper Tube Fittings
NIBCOWrot Copper Tube Fittings

NIBCO 633W 3/4 Wrot Copper Cup x Cup Union for 3/4 in CTS Tubing

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

SKU 3G-OTH-472394

Also listed as: 633W34 · 633W 3 4 · 633W-3-4

Brand
NIBCO
Item
633W 3/4 Wrot Copper Cup x Cup Union for 3/4 in CTS Tubing
Category
Wrot Copper Tube Fittings
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

NIBCO
Manufacturer Part Number
633W 3/4
Type
Cup x Cup, Wrot Copper

Technical Documents

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

Product Description

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

Frequently Asked Questions

What is NIBCO 633W 3/4 sweat fitting union used for?

This NIBCO wrot copper union joins two 3/4 inch CTS copper tubes in plumbing and HVAC systems. Its cup x cup design allows sweat-soldering for leak-free connections in potable water, hydronic heating, and industrial piping applications.

What are the specifications of NIBCO 633W 3/4 union?

The NIBCO 633W 3/4 is a wrot copper sweat fitting union with cup x cup ends for 3/4 inch CTS copper tubing. It is manufactured by NIBCO under part number 633W 3/4 and is designed for soldered connections in plumbing and mechanical systems.

Where to buy NIBCO 633W 3/4 union worldwide?

3G Electric supplies the NIBCO 633W 3/4 wrot copper union to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this and other copper fittings across 14 industrial departments.

How to install NIBCO 633W 3/4 sweat union?

Clean and flux the 3/4 inch CTS tube ends and the cup interiors of the NIBCO union. Assemble the union, apply heat evenly, and feed solder into the cup joints until a complete fillet forms. 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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