Product Cateloge

Storz Lockable Coupling

Qruck’s Storz Self-locking Coupling structure can form a tight and reliable seal, ensuring system integrity even under high pressure. The self-locking mechanism prevents accidental disconnection caused by vibration, hose movement, or pressure surges, reducing the risk of injury or equipment damage. And our Storz Self-locking Coupling owns excellent anti vibration and anti detachment capabilities. And they are used widely in the connection with hose, pump, valve, water divider, water collector, and other equipments in high working pressure.
Storz Self-Locking Coupling

Storz Reducer Coupling

Storz Female Adapter

Storz Male Adapter

Storz Blank Cap

Feature	Standard Storz Coupling	Storz Lockable Coupling
Locking Mechanism	No integrated lock; relies on friction and bayonet engagement.	Integrated locking device (spring-loaded pins, locking levers, or latch mechanisms) that positively secures the connection
Anti-rotation Protection	Can potentially back off or disconnect due to hose twisting or vibration	Prevents relative rotation of coupling halves, eliminating accidental uncoupling under pressure or hose movement
Unauthorized Access Prevention	No security feature; can be opened by anyone.	Protects against unauthorized disconnection or tampering, ideal for securing filling lines, standpipes, or valuable equipment.
Activation Method	N/A (no lock)	Can be automatic (locks when fully coupled) or manual (requires key, special tool, or lever operation).
Visibility in Poor Conditions	No special visual features.	May feature high-visibility or reflective locking levers for easy location in dark or smoke-filled environments
Typical Applications	General firefighting, irrigation, water transfer.	High-risk environments (silos, tanker filling, chemical plants), public locations (standpipe covers), and large-volume hoses where accidental disconnect is dangerous