Hydrotek HB8CPB-128 High-Efficiency Sensor Flush Valve (Polished Brass)

The Hydrotek HB8CPB-128 is a commercial-grade, battery-operated toilet flush valve that combines a classic, high-end aesthetic with precision water-saving technology. Finished in a brilliant Polished Brass, this unit is designed for luxury hospitality, historic restorations, or high-profile corporate environments where traditional design must meet modern performance. Delivering a WaterSense-compliant 1.28 GPF (4.8 LPF), it provides a powerful, touchless flush that reduces water consumption by 20% compared to standard 1.6 GPF models.

Precision Engineering & Durability

• Heavy-Duty Brass Construction: Cast from high-copper, low-zinc brass to ensure maximum resistance to dezincification, providing superior structural integrity in high-use restrooms.
• High-Performance Piston Mechanism: Utilizes a superior, slow-closing piston flushing mechanism for consistent cycle times and accurate flush volumes, even under fluctuating water pressures.
• Chemical-Resistant Seals: Equipped with VSI silicone elastomer piston seals, engineered to withstand the degrading effects of chlorine, chloramines, and ammonia commonly found in municipal water supplies.
• Debris Protection System: A standard self-cleaning filtering system protects the internal solenoid and piston from waterborne sediment, reducing maintenance needs and extending the valve's lifecycle.

Advanced Operational Intelligence

• Battery-Powered Independence: Operates on four (4) standard AA alkaline batteries, offering a convenient solution for retrofits or high-end installations where hardwiring is not preferred. Includes a low-battery indicator.
• Touchless ADA Compliance: The advanced infrared sensor provides a sanitary, "no-hands" experience, ensuring full compliance with ADA accessibility guidelines and improving restroom hygiene.
• Smart Self-Diagnostics: Features an integrated electronic system with self-diagnostics and a manual reset function to simplify troubleshooting and facility management.
• Automated Hygiene (Sentinel Flush): Includes a built-in 36-hour sentinel flush feature to automatically activate the valve during periods of inactivity to maintain the trap seal.
• True Mechanical Override: Equipped with a standard manual-mechanical override button, ensuring the fixture remains fully operational even if the batteries fail.

Technical Specifications & Installation

• Fixture Type: Designed for exposed installation on 1-1/2" top spud water closet (toilet) fixtures.
• Standard Connections: Includes a 1" I.P.S. angle stop valve with a vandal-resistant cap and a 1-1/2" top spud coupling.
• Pressure Range: Engineered to function effectively across a wide operational pressure range of 10–125 PSI.
• Rough-In Adaptability: Features an adjustable tailpiece to accommodate field variations and is adaptable for left-hand rough-in configurations.

Shop at ProDryers: Elevate your restroom’s design with the timeless look of polished brass and the efficiency of modern sensor technology. Buy the Hydrotek HB8CPB-128 at ProDryers to secure the best market pricing, or request a best price quote for your luxury commercial project or facility-wide upgrade today.

Download the Spec Sheet