Water Valve Locks - Secure Water Valve Locks

Introducing the Non-Adjusting Isolation Lock (NAIL)

The NAIL and NAIL II underground water valve locks assure control and provide security to your water distribution system.

The NAIL water valve lockout devices prevent water valves from being turned so that they remain in the desired "open" or "closed" position.

Sometimes referred to as "lockout - tag out,"NAIL locks assist in making emergency water system repairs by controlling the stream of water up and down the water line. NAIL locks can also isolate areas that require quarantine when public safety is at risk.

• Control, protect, and secure water distribution systems

• Isolate water lines under construction from existing water systems

• Prevent malicious tampering of water supply

• Secure valves while performing repairs


Find out more about
NAIL Products
Meets recommended guidelines for Physical Security of Water Utilities as outlined by the American Water Works Assoc.
Water Valve Locking Devices


NAIL Water Valve Lockouts


• Protect the Domestic Water Supply
• Assure Water System Security

Water Lock System Applications include:
• Homeland Security
• Water Theft Prevention
• Public Safety

• Municipal Water Dept. Control and Convenience

NAIL II Patented Valve Locking Device
NAIL II valve locks fit all valves with standard 2" operating nuts. (review spec's)