Plumbing / Toilet Flushers
Sloan DOLPHIN 115-1.6-GJ-CP Manual Flushometer Guide
Technical specifications and installation rough-in dimensions for the Sloan DOLPHIN 115-1.6-GJ-CP manual flushometer. Includes operating pressure requirements, flush volume, and valve construction details.
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Click an image to enlargeQuick Guide for Sloan DOLPHIN 115-1.6-GJ-CP
This document provides the technical specifications and rough-in requirements for the Sloan DOLPHIN 115-1.6-GJ-CP manual flushometer. It is designed for use with top spud water closets and operates within a specific pressure range to ensure proper flushing performance.
Product Overview
The DOLPHIN 115-1.6-GJ-CP is a manual, piston-operated flushometer. It features a polished chrome finish and is constructed with red brass for the valve body, cover, and tailpiece. The unit is factory-set for a 1.6 gpf (6.0 lpf) flush volume, with options for adjustment.
Technical Specifications
- Flush Volume: 1.6 gpf (6.0 lpf)
- Valve Type: Piston
- Operating Pressure (Flowing): 15-80 psi (103-552 kPa)
- Supply Pipe Size: 1 inch (25mm)
- Fixture Connection: Top Spud
- Spud Coupling: 1.5 inches (38mm)
- Rough-in Dimension: 24 inches (610mm)
- Control Stop: Ground Joint (GJ)
Features and Compliance
The flushometer includes a regulating screw for flush duration control and an adjustable tailpiece. The flushing control mechanism functions in oil and is isolated from debris, ensuring reliable operation. The unit complies with military specifications and is compliant with ASTM Alloy Classification for Red Brass, as well as ASSE 1037 and ANSI/ASME 112.19.2 standards.
Installation Rough-in
The installation requires a 1-inch I.P.S. supply line. The rough-in dimension from the center line of the fixture to the center line of the supply is 24 inches. Ensure the installation adheres to the provided line drawing dimensions to maintain proper clearance and functionality.
Practical help
Common problems
Insufficient flush performance
Verify that the flowing water pressure is within the required 15-80 psi (103-552 kPa) range. Low pressure may require adjustment or system inspection.
Flush duration issues
Use the regulating screw on the flushometer to adjust the flush duration according to specific fixture needs.
Before use
- Confirm the water supply pressure is between 15-80 psi (103-552 kPa).
- Verify the supply pipe size is 1 inch (25mm).
- Ensure the fixture is a Top Spud water closet.
- Check that all components (valve body, cover, tailpiece) are present and undamaged.
Specs in practice
- Ground Joint (GJ)
- Refers to the type of control stop connection, providing a metal-to-metal seal.
Images and diagrams
- The rough-in drawing illustrates the required 24-inch distance from the center line of the fixture to the supply line.
- The diagram shows the 1-inch I.P.S. supply connection and the top spud fixture configuration.
Model compatibility
- Designed for Top Spud water closets.
- Complies with ASSE 1037 and ANSI/ASME 112.19.2 standards.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.