Nibco PRESCAP34 Copper Press Tube Cap 3/4 Inch

Product Description

The NIBCO PRESCAP34 is a 3/4-inch copper press tube cap designed to terminate open copper pipe ends without soldering. The press-fit connection uses a pre-installed EPDM sealing element that is compressed by a standard press tool to form a permanent, leak-tight seal. This fitting is installed by licensed plumbers and pipefitters working on residential and light commercial water distribution systems where flame-free connections are required or preferred.

This tube cap is suited for capping off 3/4-inch copper tubing in potable water, hydronic heating, and general plumbing applications. The press end eliminates the need for torch work, flux, or solder, making it a practical choice in occupied structures, tight spaces, or anywhere open-flame work is restricted. It is also used during system testing to temporarily or permanently seal unused branch lines.

Key Features

• Press-fit connection requires no soldering, flux, or open flame
• 3/4-inch nominal size fits standard 3/4-inch copper tubing
• Copper construction provides corrosion resistance suitable for potable water service
• EPDM sealing element delivers a reliable, pressure-rated seal when pressed with a compatible jaw set
• Compact cap profile allows installation in confined spaces

Compatibility

Designed as an OEM-style press fitting for use with standard 3/4-inch copper tubing in residential and light commercial plumbing systems.

Installation Notes

Installation requires a calibrated press tool with the appropriate 3/4-inch press jaw set compatible with the fitting profile. Shut off and depressurize the water system before working on any pipe connection. Inspect the pipe end for burrs, debris, or out-of-round deformation and clean or deburr as needed before pressing. Installation must comply with applicable local plumbing codes and manufacturer pressing tool requirements.

Technical Specifications

• Connection Type: Press-fit
• Pipe Size: 3/4 inch
• Material: Copper
• Seal Material: EPDM

Standard Information

• Brand: NIBCO
• Manufacturer Part Number: PRESCAP34