#Mortise lock conversion kit plus

Mortise lock case faceplate dimensions (on inside edge of door with latch).Screw hole spacing of interior / exterior handle trim plates.Mortise Lock Conversion- Measurements to Know: The look of your door is going to be affected by whether the screw holes from the previous hardware style are covered or not. Once you have determined whether you need a double-cylinder or single-cylinder lock (keyed on both sides or just one), you must consider the dimensions of the new hardware. Note: the old-style Wright mortise lock hardware was not the same style as the new-style, and parts are not interchangeable between the two generations.Įmtek (Juralco) is no longer manufacturing these locksets, but the previously manufactured Emtek locks are replaceable with Pado, Papaiz or Wright products. Whether your lock is broken and needs replacing or you're just ready for an updated look, mortise locks are generally simple to remove and replace standard mortise lock replacement parts made by Emtek, Juralco, Pado, Papaiz or new-style Wright are easily interchangeable. We need to look deeper into the code, into the manufacturers’ instructions and their Listing.Īlso, these doors need to be field labeled or re-certified to verify that the door can withstand a fire condition (evidence).Mortise Lock Conversion Mortise Lock Conversion Mortise Lock Conversion: Replacing or Updating Your Mortise Lock In the inspection business we need EVIDENCE that a product will withstand a fire condition. My guess is to confirm and am willing to put my money on it. These doors will be tested not for new products but to either confirm or deny some of these types of questions. We will be testing a few more fire door assemblies in the near future.

#Mortise lock conversion kit plus

Now figure positive pressure at 1500 plus degrees for 90 minutes and then a water hose stream at a minimum of 30LBS of pressure from 20 feet away. Within 5 minutes the entire veneer is gone and only the bare mineral core is protecting the opening along with the mortise lock housing and its latch. Remember how small the screws are that attach these plates and are they steel? Side note: Aluminum melts away at 900 degrees, less than 10 minutes into a fire test. If you covered the pocket with a steel plate most likely the plate would be blown off by the hose stream or the plate would fall off due to positive pressure conditions inside the furnace and would burn off. The mortise lock housing takes on the fire protection, saving the door from blow out.

The mortise pocket surroundings gets blown out with the hose stream even with a mortise lock in place. The door cannot withstand a fire condition with a vacated mortise pocket. I have witnessed a few fire tests and have seen first hand how vulnerable a fire door is in a fire condition. This is done a lot in field, mostly in the hotel industry where a new card lock has an over sized bore and is permitted to be field modified by the locks’ manufacturer, as tested. You need to login or register to bookmark/favorite this content. Thank you to Nolan Thrope of Allegion for the photo! So I ask you, readers of iDigHardware…what would you do? Do you know of an acceptable method for making this conversion on a fire door? There are conversion kits available which cover the face holes and fill the 86 edge (scalp plate cutout), but I don’t know of any that have been listed for use on a fire door. I have witnessed several wood door fire tests and I believe this void would cause the door to fail.Ĭ) Covering existing holes from the mortise lock. This is especially problematic on wood doors. This may be allowed as a field modification by the listing laboratories with prior approval.ī) Filling the existing mortise pocket to maintain the integrity of the door. There are several concerns here:Ī) Preparing the door for the 2 1/8-inch-diameter hole, which is larger than what is allowed as a job-site preparation by NFPA 80. I’ve had many requests for help lately with regard to converting an existing fire door with a mortise lock to a cylindrical lock.