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NIBCOPlumbing Copper & Bronze Press Tube Fittings

NIBCO PC633-4 Straight Union

The NIBCO PC633-4 Straight Union is a wrot copper press tube fitting with a 1 in CTS x 1 in Pipe size, Press-fit x MNPT connection. This plumbing component is part of our broad industrial supply across 14…

SKU 3G-OTH-475564

Also listed as: 9256820 PC · 9256820-PC

Brand
NIBCO
Item
PC633-4 Straight Union
Category
Plumbing Copper & Bronze Press Tube Fittings
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

NIBCO
Manufacturer Part Number
9256820PC
Type
P x M, Wrot Copper, 1 in CTS x 1 in Pipe size, Press-fit x MNPT
PC633-4
Straight
Brand - Broad
NIBCO

Technical Documents

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

Product Description

The NIBCO PC633-4 Straight Union is a wrot copper press tube fitting with a 1 in CTS x 1 in Pipe size, Press-fit x MNPT connection. This plumbing component is part of our broad industrial supply across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.

Frequently Asked Questions

What is the NIBCO PC633-4 straight union used for?

The NIBCO PC633-4 straight union connects copper tubing to male threaded pipe in plumbing systems. It joins 1 in CTS copper tube via press-fit to a 1 in MNPT threaded connection, enabling quick, leak-free assembly in water supply and hydronic heating applications.

What are the specifications of the NIBCO PC633-4 union?

The NIBCO PC633-4 is a wrot copper press tube fitting, type P x M, straight union. It has a 1 in CTS copper tube size x 1 in pipe size, with Press-fit x MNPT connections. The manufacturer part number is 9256820PC.

Where to buy the NIBCO PC633-4 union worldwide?

3G Electric supplies the NIBCO PC633-4 straight union to customers worldwide. We handle full logistics, customs clearance, and delivery for this plumbing fitting. Contact us to order; we source across 14 industrial departments and provide specialist support for combustion, pumps, and controls.

How to install a NIBCO press-fit union?

To install the NIBCO PC633-4 press-fit union, ensure the copper tube is clean and deburred. Mark the insertion depth, push the fitting onto the tube, and use an approved press tool with the correct jaw to crimp the connection. Always follow manufacturer instructions for proper sealing.

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 plumbing copper & bronze press 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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