Mortise Lock (EN179)

DIROCK EN179 escape mortise locks are engineered for emergency exit doors in areas where occupants are familiar with the building layout, such as offices, staff corridors, and controlled-access zones - environments where a panic situation is most unlikely to develop. supporting fast, intuitive one-action egress, these locks ensure a quick and safe escape. They are also fire-rated to maintain performance under fire conditions.

Key features for emergency use

• Single-action escape function — When used with an EN179 escape device, users can unlock the door quickly in emergencies.

• Stable & predictable handleset operation — Mechanisms are optimized to avoid resistance or hesitation during escape.

• Door safety compliance — Meets certification requirements for emergency escape routes in commercial and public buildings in accordance with EN 179.

• Fire door compatibility — Tested for fire door assemblies.

• Full hardware integration — Compatible with certified fire door handles, profile cylinders, and door hardware components to create compliant escape door systems.

Applications

For single-leaf fire doors on escape routes in offices, schools, hospitals, and other public buildings where safe, regulated evacuation is required.

Frequently asked questions

Q1. What does EN 179 standard cover?

EN 179 is the European standard specifying requirements and test methods for emergency exit devices operated by a lever handle or push pad, intended for use on escape routes.

Q2. Why is EN 179 important for fire door hardware?
It ensures that the lock allows quick, intuitive escape during a fire while remaining secure under normal use. All DIROCK EN179 mortise locks are fire-rated.

Q3. What is the difference between EN 179 and EN 1125 devices?

EN 179 exit devices are designed for areas with familiar users (e.g., staff), while EN 1125 devices are for high-occupancy public areas where occupants may be unfamiliar with the building. Our EN 179 locks are operated by lever handles.

Q4. Can DIROCK mortise locks be used on emergency exit doors?
Yes, we provide certified escape mortise locks that comply with EN 179 standard, ensuring  rapid escape in an emergency.

Q5. What is the fire resistance rating of your escape lock?

Our escape mortise locks have passed 240-minute fire resistance test for steel fire doors.

Q6. Are your EN 179 mortise locks tested for durability?
Yes. They comply with EN 179 performance levels and have passed 200,000 cycles of endurance testing, ensuring a long service life and reliable mechanical operation.

Q7. Do you supply matching door hardware?
Yes. We offer fire door hardware solutions, including lever handles, cylinders, hinges, and other essential components.