Mueller Streamline 6143 Pvc Dwv Hub Coupling 6 in

Product Description

The MUELLER STREAMLINE 6143 is a straight hub-by-hub coupling designed for 6-inch PVC drain, waste, and vent (DWV) piping systems. This fitting meets ASTM D2665, F1498, D331, and D1784 material specifications and carries NSF 14 and UPC certifications, confirming it is built to industry standards for drainage applications. The smooth interior walls reduce friction and resist scale buildup, promoting consistent flow through the line. PVC construction provides strong resistance to chemicals and corrosion, making it a reliable choice for both standard DWV and chemically demanding installations. Licensed plumbers and pipefitters install this coupling during new construction and retrofit work.

This coupling is suited for residential and commercial DWV systems where a straight, in-line connection is needed on 6-inch PVC pipe. Typical applications include drain lines, waste stacks, and vent piping in buildings where chemical resistance and dimensional consistency are required. It is also applicable in chemical drainage systems where PVC is the specified material. The hub-by-hub end connections accept standard 6-inch PVC pipe on both sides, allowing a solvent-welded, permanent joint.

Key Features

• Straight hub-by-hub configuration for in-line 6-inch PVC connections
• PVC construction resists chemicals and corrosion
• Smooth interior walls minimize scaling and support free flow
• Meets ASTM D2665, F1498, D331, and D1784 material specifications
• NSF 14 and UPC certified for DWV service
• Consistent dimensional tolerances ensure reliable fit with standard 6-inch PVC pipe

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 6-inch PVC DWV piping systems where hub-by-hub straight couplings conforming to NSF 14 and UPC standards are specified.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Before cutting into an existing system, isolate and drain the affected line to prevent wastewater exposure. Use a compatible PVC solvent cement and primer rated for DWV service; follow manufacturer dry-fit and cure time guidance before restoring flow. Do not apply heat or mechanical force to seat the hub connections.

Technical Specifications

• Fitting Type: Coupling, Straight
• End Connection: Hub x Hub
• Size A: 6 inches
• Size B: 6 inches
• Material: PVC
• Material Specification: ASTM D2665 / F1498 / D331 / D1784
• Applicable Standard: NSF 14, UPC
• Application: DWV, Chemical, Corrosion Resistance

Standard Information

• Brand: MUELLER STREAMLINE
• Manufacturer Part Number: 6143