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Nibco PC633-4 is a copper press union (material number 9256800FPC) for joining 1/2-inch copper tubing with a press-to-MNPT connection in potable, hot, chilled and process water and HVAC systems. The fitting uses an inboard bead and EPDM O-ring to form a watertight seal when pressed and shows a visible "N" witness mark when properly crimped. It is lead-free, suitable for underground installation, and rated for 200 psi CWP and -20 F to 250 F.
1/2-inch copper press union with EPDM O-ring and inboard bead; press x MNPT; lead-free; 200 psi CWP; -20 F to 250 F; visible "N" witness mark.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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