- Accurate fit for handwheels with a diameter of 25–64 mm (1.0–2.5 in). Provides a precise and secure fit to prevent accidental or unauthorized valve operation. - Robust protection. Resistant to fracture and wear, delivering durable safety for gate valves used in urban tap water, sewage systems, energy systems and other pipelines. Built for long-term reliability in demanding environments. - Versatile application. Safely protects a wide range of valves, including household gas valves, liquefied gas valves, water meter valves, heating valves, and more. Adaptable to meet safety needs in both industrial and residential facilities. - Innovative design. Crescent flat box design allows complete locking of the valve handle, effectively preventing misoperation and ensuring the valve remains securely locked in critical situations. Use scenarios - Municipal or industrial water system maintenance: lockout a main valve to prevent unauthorized operation during work. - Gas, heating, or energy system shutdowns: isolate valves with the lock to ensure safe servicing. - Residential service calls: secure gas or heating valves during inspections or repairs to prevent accidental gas flow.