This advanced 4" Self-Locking Drop Elbow is designed for exceptional strength, durability, and safety in demanding environments. The heavy-duty, bolt-on arm attachment plate reinforces the lever pivot, eliminating common failure points such as impact-prone pivot bolts and fragile casting bosses. The arm hinge features a double-yoke design, significantly increasing structural strength and ensuring long-lasting performance.

The integrated heavy-duty locking mechanism prevents accidental disconnections while the elbow is in service. Operators are not required to manually engage the lock—simply moving the handle to the closed position automatically secures the elbow. Releasing the lock is equally intuitive: just grip the handle and lift. The locking mechanism is built with ample clearance, ensuring it remains unaffected by dirt, ice, or snow, making it highly reliable in various weather conditions.

Unlike other designs prone to disconnections due to accidental bumps or hydraulic surges caused by underground storage tank overfill valves, this self-locking elbow provides a secure, fail-safe solution.