Mission Rubber 0406 751 Unshielded Sewer Coupling 6 in

Product Description

The MISSION RUBBER 0406 751 is an unshielded sewer coupling designed for connecting or repairing 6-inch nominal clay sewer pipe. The coupling uses a nut-and-bolt clamping mechanism to compress a rubber gasket sleeve around the pipe ends, creating a watertight joint without requiring a full shield band. This style of coupling is a standard solution in underground drain, waste, and vent (DWV) systems where clay pipe is present. Licensed plumbers and drain contractors install this fitting during sewer lateral repairs, pipe replacement sections, and transition work in municipal and residential systems.

This coupling is suited for underground sewer applications involving 6-inch nominal clay pipe. It is commonly used in residential and light commercial sewer lateral repairs, trenchless patch work, and gravity-flow drain system tie-ins. The clay end style accommodates the outside diameter profile specific to vitrified clay pipe, making it the appropriate choice when connecting into existing clay sewer infrastructure rather than transitioning to PVC or cast iron.

Key Features

• Unshielded design reduces overall footprint for tight trench conditions
• Nut-and-bolt clamp delivers consistent, adjustable clamping force on the rubber sleeve
• Clay end style sized to match the outside diameter of 6-inch nominal vitrified clay pipe
• Rubber gasket sleeve provides a flexible, watertight connection that accommodates minor pipe misalignment
• Domestically produced for consistent dimensional compliance with ASTM sewer coupling standards

Compatibility

Designed for use with 6-inch nominal vitrified clay sewer pipe. This coupling is specified for clay-end connections and is not intended for direct connection to PVC, ABS, or cast iron pipe without verifying outside diameter compatibility.

Installation Notes

Installation is performed by licensed plumbers or sewer contractors following local plumbing codes and IPC guidelines for underground DWV systems. Clean pipe ends of debris, grease, and loose material before sliding the coupling into position, as surface contamination can prevent a proper seal. Tighten nut-and-bolt clamps evenly and in an alternating pattern to seat the rubber sleeve uniformly around the pipe. Do not overtighten clamps beyond the point of full sleeve contact, as excessive torque can damage the gasket.

Technical Specifications

• Nominal Pipe Size: 6 inches
• End Style: Clay
• Coupling Type: Unshielded
• Clamp Style: Nut and Bolt
• Origin: Domestic

Standard Information

• Brand: MISSION RUBBER
• Manufacturer Part Number: 0406 751