Taco LB-075-H-2LF Shut-Off Valve & Actuator, Tank Water Heaters, Brass

The Taco LB-075-H-2LF LeakBreaker® is an automatic water heater shut-off and leak protection system engineered for professional installation in residential and light commercial applications. Designed to prevent water damage caused by heater tank failure or system leaks, the unit integrates an electronic control module, motorized shut-off valve, and leak detection sensor. When moisture is detected, the system automatically closes the water supply line and provides both visual and audible alerts. The device is fully resettable and testable, allowing for in-field verification and ongoing operational reliability.

Details

• Model: LB-075-H-2LF
• Manufacturer: Taco Comfort Solutions
• Product Name: LeakBreaker® Water Heater Shut-Off
• Connection Size: 3/4 inch NPT
• System Components: Control unit, motorized valve with actuator, and leak sensor
• Body Material: Lead-free brass valve body
• Power Source: Low-voltage transformer (supplied)
• Valve Type: Electrically actuated ball valve
• Reset Capability: Manual reset following trip condition
• Testing Function: Integrated test cycle via control module
• Visual Indication: Two-color LED status light
• Audible Indication: Built-in alarm for leak detection and status notification
• Application: Automatic water shut-off protection for tank-type and indirect water heaters

Technical Specifications

• Valve Size: 3/4 inch NPT female connections
• Valve Body Material: Lead-free brass
• Flow Design: Full-port ball valve
• Power Input: 120 VAC input / 24 VAC low-voltage operation via transformer
• Sensor Type: Conductivity-based water leak detection sensor
• Sensor Cable Length: Standard 8 ft. (2.4 m), extendable as required
• Operating Pressure: Up to 150 PSI (10.3 bar)
• Operating Temperature Range: 34°F to 150°F (1°C to 65°C)
• Response Time: Instantaneous shut-off upon water detection
• Valve Actuation Time: Approximately 5 seconds full open/close cycle
• Indication System: Dual LED indicator (status, alarm) with integrated audible alarm
• Reset/Test Function: Manual reset and system test button on control unit
• Mounting Orientation: Horizontal or vertical installation permitted
• Compliance: NSF/ANSI 372 lead-free certified; UL Listed control assembly
• Warranty: Manufacturer limited warranty (refer to Taco documentation)

Summary

The Taco LB-075-H-2LF LeakBreaker® is a professional-grade water heater shut-off system combining a motorized lead-free brass valve, control module, and leak sensor for complete water damage prevention. Engineered for universal compatibility with any tank-type water heater, it provides fast automatic isolation of the supply line upon leak detection. Its testable, resettable design, low-voltage operation, and dual LED/audible alert system ensure code-compliant protection and long-term reliability in mechanical and plumbing installations.