Yale CH Double Cylinder 42.5/42.5 – Nickel Matt with Emergency Function
The Yale CH double cylinder is a high-security mechanical door cylinder designed for residential and commercial doors requiring key operation on both sides. With its 42.5 mm total length and 22 mm round profile, it fits standard door preparations and delivers reliable daily locking performance.
Nickel matte finish resists corrosion and blends discreetly with modern door hardware
Not- and danger function allows emergency egress from the inside without a key while maintaining security
Prio-Function enables selective keying — different cylinders can share a single key or remain independently keyed
The integrated Prio-Function and emergency operation make this cylinder suitable for doors where one-sided keying or rapid escape is needed. The nickel matte surface is more scratch-resistant than standard chrome and maintains its appearance over years of use.
Ideal for...
Apartment doors, office entrances, and commercial rooms where keyed access from both sides is required and emergency egress must be possible without compromising security.
Application of Yale CH Double Cylinder
Install in standard door bores with a 22 mm round profile requirement. Use the key from the outside for normal locking and unlocking; the inside can be turned without a key when the not-function is engaged. Pair with the Yale K2000 series for consistent keying across multiple cylinders.
Yale is a global leader in mechanical security hardware, with over 180 years of lock and cylinder manufacturing experience. The brand is known for high-security cylinder profiles, innovative keying systems such as Prio-Function, and compliance with European locking standards. Yale cylinders are widely specified for residential, commercial, and institutional doors across Europe.
A double cylinder requires a key to operate from both the inside and the outside. The Yale CH cylinder uses a standard 22 mm round profile and a 42.5 mm total length, fitting most common door preparations.
The Prio-Function allows multiple Yale cylinders to be keyed alike or independently. This means one key can open several doors, or each cylinder can have its own unique key — depending on how the cylinder is ordered.
The not/danger function enables emergency egress from the inside of the door without inserting a key. The cylinder can be turned freely from the inside while remaining locked from the outside, ensuring safety during emergencies.
Delivery includes one Yale CH double cylinder with nickel matte finish, mounting instructions, and a matching key. The cylinder is compatible with standard 22 mm round door bores.
Yale provides a 24-month manufacturer warranty on the CH double cylinder, covering material and manufacturing defects under normal use.
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