Ipex 36738 Pvc Sch 80 Socket Coupling 4x3 in

Product Description

The IPEX 36738 is a PVC Schedule 80 socket-by-socket coupling designed for reducing connections between 4-inch and 3-inch pipe in industrial and commercial piping systems. Built to Schedule 80 dimensional and pressure standards, this fitting delivers thicker walls and higher pressure ratings than Schedule 40 equivalents. The PVC construction resists rust, pitting, scale, and corrosion, keeping interior walls smooth across a wide range of service conditions. It is suited for use with acids, alcohols, salts, halogens, and potable water applications where chemical resistance and long service life are required. Licensed plumbers and pipefitters typically install this fitting in process piping, industrial fluid handling, and municipal water systems.

The IPEX 36738 is intended for industrial process piping, chemical handling, and potable water distribution systems where a durable, corrosion-resistant reducing coupling is needed. Its Schedule 80 rating makes it appropriate for higher-pressure service lines in both above-ground and below-grade installations. The socket-by-socket end configuration accepts standard 4-inch and 3-inch PVC pipe ends, allowing a solvent-cemented, pressure-rated connection. This fitting is part of the IPEX Xirtec PVC system, engineered and manufactured to a single manufacturer's dimensional and performance standards.

Key Features

• Schedule 80 wall thickness for higher pressure ratings compared to Schedule 40
• Socket-by-socket (spigot-free) ends for solvent-cement joining
• PVC construction resists rust, pitting, scale, and corrosion for smooth interior walls throughout service life
• Suitable for potable water service as listed with NSF and CSA International
• Resistant to ignition due to PVC material composition
• Environmentally responsible manufacturing uses approximately half the energy required for equivalent steel or steel-alloy fittings

Compatibility

Designed for use within the IPEX Xirtec PVC Schedule 80 pipe, valves, and fittings system. Compatible with standard 4-inch by 3-inch PVC Schedule 80 pipe conforming to applicable ASTM dimensional standards. Suitable for potable water, chemical process, and industrial fluid piping applications.

Installation Notes

Installation should be performed by a licensed plumber or qualified pipefitter in accordance with applicable plumbing codes, including IPC and local authority requirements. Depressurize and drain the line completely before cutting into any existing system. Use the correct PVC Schedule 80 solvent cement and primer for the pipe size and service conditions, following the cement manufacturer's open time and cure time guidelines. Do not apply mechanical force or thread this socket-end fitting.

Technical Specifications

• Material: PVC (Polyvinyl Chloride)
• Schedule: Schedule 80
• End Connection: Socket x Socket
• Inlet Size: 4 inches
• Outlet Size: 3 inches
• Certifications: NSF Listed, CSA International

Standard Information

• Brand: IPEX
• Manufacturer Part Number: 36738