The Petzl WILLIAM is a lightweight large-capacity asymmetrical carabiner designed for professional rope access work in urban environments. Its pear shape accommodates multiple connections—ideal for rigging on facades, window cleaning systems, and complex suspension setups. The fluid interior design and Keylock system ensure the carabiner stays oriented and won't snag accidentally during work. Available in three different locking systems for different operational requirements: automatic TRIACT-LOCK, manual SCREW-LOCK with visual warning, or automatic BALL-LOCK with lock indicator.
Built for Professional Operations:
- Asymmetrical pear shape provides large capacity for multiple connections
- Facilitates Munter hitches for emergency descent operations
- Fluid interior design limits catch points and enables smooth rotation
- Keylock system prevents involuntary snagging on gear or rope
- H-shaped cross-section balances strength and weight
- Large gate opening (27–28 mm) for easy installation and removal
- Major axis strength: 27 kN | Minor axis/open gate: 8 kN
- Aluminum construction (90g or 85g depending on lock type)
Locking Systems Available:
- **TRIACT-LOCK (90g):** Automatic triple-action gate opening. Quick and intuitive. Best for rapid deployment and frequent connections.
- **SCREW-LOCK (85g):** Manual screw-lock with red visual warning band visible only when unlocked. Most secure. Best for static positions and complex rigging where accidental gate opening is unacceptable.
- **BALL-LOCK (90g):** Automatic triple-action with visual lock indicator. Combines speed with clear lock confirmation. Best for teams and safety-critical operations.
Colors Available:
- **Gray (Standard):** Professional color. All three locking systems available.
- **Black:** Discrete color for night work or building aesthetics. TRIACT-LOCK and SCREW-LOCK versions available.
- **Gold:** High-visibility color for equipment tracking. TRIACT-LOCK and BALL-LOCK versions available.
Perfect For:
- Window cleaning rope access systems
- Facade maintenance and building anchoring
- Glass replacement rigging
- Suspension rigging with multiple connection points
- Urban vertical work requiring large-capacity connecting
- Team operations with different lock system preferences
- Munter hitch descent backup systems
Certifications: CE EN 362, CE EN 12275 type B, NFPA 2500 Technical Use. 3-year warranty. All versions compatible with CAPTIV positioning bar.