Installation is simple and is similar to regular door hinges. Packaged as a set of either (2) hydraulic hinges or (3) - 2 hydraulic and 1 dummy hinge, depending on the size and weight of the door for right or left opening. Doors over 90 pounds may require 3 hinges.
The AlRex stainless steel hydraulic hinge is designed to be maintenance free and provides multiple functions:
1. Automatic stop function when opened beyond 85 degrees with closing and locking (damping) speed control.
2. Automatic closing from 170 degrees with adjustable closing and locking (damping) speed.
Weather stripping, carpet drag, wind, drafts and twisted/misaligned doors or frames may affect performance.