Sloan 113128DFB Water Closet Flush Valve 1.28 Gpf

Product Description

The SLOAN 113128DFB is a water closet flush valve rated at 1.28 gallons per flush (GPF), designed for commercial and institutional toilet fixtures. Flush valves of this type control the volume and flow of water delivered to the toilet bowl during each flush cycle, replacing the function of a tank-style assembly in high-traffic plumbing installations. The 1.28 GPF rating meets current water efficiency standards, making this valve suitable for new construction and retrofit projects where low-consumption performance is required. Licensed plumbers and commercial plumbing contractors are the typical installers for this type of diaphragm-style flush valve.

This flush valve is intended for water closet (toilet) applications in commercial, institutional, and multi-unit residential settings where flushometer-style valves are standard. The 1.28 GPF flow rate aligns with widely adopted low-consumption plumbing requirements. It is suited for wall-mounted or floor-mounted toilet fixtures that accept a standard diaphragm-type flushometer connection. Typical installations include restrooms in schools, offices, healthcare facilities, and other high-use environments.

Key Features

• 1.28 GPF flow rate meets current water efficiency and low-consumption plumbing codes
• Diaphragm-style flushometer design suited for high-traffic commercial restroom applications
• Water closet-specific configuration for toilet fixture installations
• OEM part number 113128DFB ensures direct identification for replacement and specification

Compatibility

Designed as an OEM-style replacement flush valve for commercial water closet flushometer installations requiring a 1.28 GPF diaphragm-type valve.

Installation Notes

Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off the water supply to the fixture and relieve line pressure before removing the existing valve or servicing any flushometer components. Inspect the supply line, tailpiece, and stop valve for wear or corrosion before installing the new valve. Do not overtighten the packing nut or cover tube connections, as this can damage internal diaphragm components.

Technical Specifications

• Flow Rate: 1.28 GPF
• Application: Water Closet (Toilet)
• Valve Type: Flushometer / Flush Valve

Standard Information

• Brand: SLOAN
• Manufacturer Part Number: 113128DFB