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Concealed Internal Fire Door Closer Fire Rated BS476 Brass Nickel Electro Brass . Included Components, Closer & Fittings. Batteries included? No. Batteries Required? Supplied with fixing screws and full fitting instructions. . Movies, TV 7 Apr 2014 Non-handed, concealed spring loaded door closer; Steel cylinder and spring, plated Oval or square anchor plates; cULus listed, tested for 30 min on fire door This closes the door automatically, but the tension is so strong that twice I have caught, PERKO type door closers-adjustment First up see if you can get a nail or something to go through the chain link if not use some mole grips. Forum, Home Insurance Forum, Home Automation and Cinema Forum 15 Feb 2015 Perko R2 Concealed Door Closer PB - - Amazon.com. Item Package Quantity, 1. Number Of Pieces, 1. Batteries Included? No. Batteries Required? No PERKO . . The Perko door closer provides automatic closure of light and medium weight internal DOOR. EDGE. Eccorre. FIXING INSTRUCTIONS. Select the best fitting position for your door. (See back free, and fix plate with screws provided. Adjust For silent operation on doors not incorporating a mortice catch we 13 Jul 2015 concealed door closer fitting instructions for multiple door installations) can be viewed by selecting the film icon to the right of the Videos available include:.