Georg Fischer 829-422 Pvc Reducing Coupling 4x3 Sch 80

Product Description

The GEORG FISCHER 829-422 is a Schedule 80 PVC reducing coupling designed to transition between 4-inch and 3-inch pipe in pressure-rated piping systems. Manufactured from rigid PVC, this socket-by-socket (SXS) fitting accepts solvent-cement connections on both ends, providing a reliable, leak-free joint when installed per ASTM D2564 procedures. At 1.75 pounds and roughly 4.38 inches in length, it is a compact, full-bodied fitting suited for above-ground and below-ground plumbing installations where Schedule 80 wall thickness is specified. Licensed plumbers and pipefitters working in industrial, commercial, and municipal systems will recognize this as a standard reducing coupling profile.

This fitting is used in Schedule 80 PVC piping systems requiring a concentric reduction from 4 inches to 3 inches. Typical applications include process piping, chemical distribution lines, irrigation manifolds, and commercial plumbing drain or pressure lines where the heavier Schedule 80 wall is required by code or system design. It is appropriate for both aboveground and underground service within the pressure and temperature limits of Schedule 80 PVC.

Key Features

• Schedule 80 PVC construction for increased wall thickness and higher pressure ratings compared to Schedule 40
• 4-inch by 3-inch concentric reduction in a single fitting, eliminating the need for a bushing stack
• Socket-by-socket (SXS) ends accept standard PVC solvent cement for a permanent, pressure-rated joint
• Rigid PVC material offers resistance to corrosion, scale, and many common chemicals
• Compact 4.38-inch body length minimizes space requirements in tight piping runs

Compatibility

Designed as an OEM-style replacement or new-installation fitting for Schedule 80 PVC piping systems using 4-inch and 3-inch nominal pipe sizes with solvent-cement socket connections.

Installation Notes

Installation should be performed by a licensed plumber or qualified pipefitter following local plumbing codes and ASTM D2564 solvent-cementing procedures for PVC pressure pipe. Shut off and depressurize the system completely before cutting into an existing line. Both pipe ends and fitting sockets must be properly cut square, deburred, cleaned, and primed before applying PVC solvent cement. Do not apply heat to accelerate curing or attempt to pressurize the joint before the full cure time recommended by the cement manufacturer has elapsed.

Technical Specifications

• Material: PVC
• Schedule: Schedule 80
• Inlet Size: 4 inches
• Outlet Size: 3 inches
• Connection Type: Socket x Socket (SXS) solvent cement
• Length: 4.38 inches
• Weight: 1.75 pounds
• Product Category: Plumbing
• UPC: 083475023545

Standard Information

• Brand: GEORG FISCHER
• Manufacturer Part Number: 829-422