Sloan 140-1.28-RB-4-3/4-LDIM Flushometer Manual
Quick guide for the Sloan 140-1.28-RB-4-3/4-LDIM concealed manual water closet flushometer. Includes technical specifications, operating pressure requirements, and rough-in dimensions.
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This document provides technical specifications and installation dimensions for the Sloan 140-1.28-RB-4-3/4-LDIM concealed manual water closet flushometer. Ensure your plumbing system meets the required operating pressure and rough-in dimensions before installation.
Product specifications
- Flush Volume: 1.28 gpf (4.8 lpf)
- Valve Type: Diaphragm
- Material: Semi-red brass body, cover, tailpiece, and control stop
- Finish: Rough Brass (RB)
- Fixture Connection: Rear Spud
- Supply Pipe: 1 inch (25mm)
- Spud Coupling: 1.5 inch (38mm)
Operating requirements
The valve requires a flowing water pressure between 15-80 psi (103-552 kPa) to operate correctly. Specific fixtures may require higher minimum flowing pressure; always consult the fixture manufacturer's requirements.
Rough-in dimensions
The unit requires a 14.5 inch (368mm) rough-in dimension. The L-dimension is 4.75 inches (121mm). Refer to the rough-in and line drawing for precise positioning of the supply pipe relative to the fixture centerline and finished wall.
Features
- ADA Compliant: Features a non-hold-open handle for water conservation.
- CID Technology: Controls flush accuracy for enhanced water efficiency.
- Durability: High copper, low zinc brass castings for dezincification resistance.
- PERMEX Diaphragm: Synthetic rubber diaphragm with linear filtered bypass and vortex cleansing action for high chloramine resistance.
Practical help
Common problems
Verify that the flowing water pressure is within the 15-80 psi range.
Ensure the rough-in dimension is exactly 14.5 inches and the L-dimension is 4.75 inches.
Before use
- Verify water supply pressure is between 15-80 psi
- Confirm rough-in dimension is 14.5 inches
- Ensure the fixture is a compatible water closet
- Check that the supply pipe is 1 inch
- Confirm the L-dimension is 4.75 inches
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.