Hydrotek HB8CT-128-WB Automatic Battery-Operated Flush Valve (1.28 GPF Closet)

The Hydrotek HB8CT-128-WB is a high-efficiency concealed flush valve system specifically engineered for modern commercial environments that prioritize water conservation, security, and long-term reliability. This 1.28 GPF (4.8 LPF) closet valve is designed for behind-the-wall installation and features an integrated stainless steel wall box, providing an elite level of protection against vandalism. Configured for a 1-1/2" top spud connection and including a 1" inlet stop, this system meets strict LEED and WaterSense requirements while maintaining the high-performance standards necessary for high-traffic facilities.

Professional-Grade Engineering & Vandal Resistance

• Integrated Wall Box Security: The "WB" designation signifies the inclusion of a heavy-gauge recessed stainless steel wall box. By housing the infrared sensor and mechanical components within this secure enclosure, the system is shielded from tampering, theft, and impact. This is the essential configuration for high-security environments such as correctional facilities, transit hubs, and public stadiums.
• Superior Piston Technology: Hydrotek’s industrial-grade piston design offers a significant performance advantage over traditional diaphragm valves. The piston ensures a precise and consistent 1.28 GPF flush regardless of water pressure fluctuations and is highly resistant to mineral deposits and debris, which are common causes of valve failure or continuous running.
• Corrosion-Resistant Internals: Manufactured with a high-quality brass valve body and industrial-grade VSI silicone elastomer seals, the system is engineered to withstand the harsh effects of chlorine, chloramines, and other chemicals found in modern municipal water supplies.
• Top Spud Integration: While the valve body remains concealed behind the wall for security, the 1-1/2" top spud configuration allows for seamless integration with high-efficiency top-access closet fixtures. This setup combines the security of a concealed valve with the versatility of a traditional fixture interface.

Advanced Sensor & Logic Features

• Touchless ADA Compliance: The integrated infrared sensor provides a 100% hands-free experience, fulfilling all ADA accessibility requirements while significantly improving facility hygiene by eliminating common touchpoints and reducing cross-contamination.
• Battery-Powered Independence: Powered by four (4) standard AA alkaline batteries, the HB8CT-128-WB is an ideal solution for both new construction and retrofitting existing facilities where running electrical hardwiring is difficult or cost-prohibitive.
• True Mechanical Manual Override: Features a standard manual-mechanical override button that remains fully functional even in the event of battery exhaustion, ensuring the toilet remains operational and flushing is always available for users.
• Automated Hygiene (Sentinel) Flush: Includes a built-in 24-hour sentinel flush feature that automatically activates the valve during periods of low occupancy. This keeps the fixture’s trap seal primed to prevent sewer gases from entering the building.
• Smart Self-Diagnostics: The electronic system includes integrated self-diagnostic capabilities and a manual reset function to simplify troubleshooting and streamline routine maintenance for facility staff.

Technical Specifications & Performance

• Application: Concealed (behind-the-wall) with recessed wall box.
• Fixture Type: 1-1/2" Top Spud Closet (Toilet).
• Inlet Size: 1" NPT.
• Flush Volume: High-efficiency 1.28 GPF (4.8 LPF).
• Operating Pressure: Reliable performance across a pressure range of 10–125 PSI.

Shop at ProDryers: Modernize your facility with a high-efficiency flush valve that combines superior water savings with maximum security. Buy the Hydrotek HB8CT-128-WB at ProDryers to secure the best market pricing, or request a best price quote for your high-efficiency commercial renovation or LEED-certified project today.