3/4 inch PVC Insert Coupling Insert X Insert

Campbell CP3 3/4 inch PVC Insert Coupling (IXI 6651) – Professional Grade Performance

The Campbell CP3 3/4 inch PVC Insert Coupling (Model 6651) is a durable fitting engineered for dependable use in cold-water irrigation and potable water distribution systems. Designed for insert x insert (IXI) connections, this coupling is suitable for joining polyethylene (PE) pipe and is built to withstand the mechanical demands of underground and above-ground installations.

Manufactured from high-grade polyvinyl chloride (PVC), this coupling meets or exceeds ASTM D2609 specifications. Its barbed insert profile ensures a firm grip on polyethylene tubing when secured with stainless steel clamps or crimp rings, delivering a robust, leak-resistant seal in low- to moderate-pressure systems.

Product Features

• Material: Injection-molded PVC for corrosion and chemical resistance.
• Size: 3/4 inch nominal barbed insert ends (Insert x Insert).
• Pressure Rating: Suitable for use in systems up to 100 PSI (depending on pipe and clamp type).
• Connection Method: Compatible with standard PE tubing using stainless steel hose clamps or crimp rings.
• Temperature Range: Designed for cold water use; do not exceed 140°F (60°C).
• Compliance: Meets ASTM D2609 requirements for plastic insert fittings.

Typical Applications

• Potable water service lines
• Landscape and agricultural irrigation systems
• Low-pressure fluid transfer lines
• Rural water distribution systems

Installation Guidelines

Ensure that the polyethylene tubing is clean and cut square. Push the tubing fully over the barbed insert until it seats against the fitting shoulder. Secure the connection with appropriate stainless steel clamps or crimp rings, positioned over the barbs. Use only tools recommended for the clamping method being used. Avoid overtightening, which may damage the tubing or fitting.

Performance and Reliability

Backed by Campbell’s quality control standards, the CP3 insert coupling is manufactured to provide consistent dimensional accuracy and resistance to cracking under stress. Its smooth internal bore ensures minimal flow restriction and consistent hydraulic performance across a range of system configurations.

Whether you’re installing a rural water supply, replacing components in an irrigation layout, or building out new service lines, the Campbell CP3 3/4 inch PVC Insert Coupling delivers the strength and precision professional contractors require.