Q: I am looking for a door opening rate, and travel extent, restrainer to limit the RATE at which the wind could snatch an outward opening patio door. Closing force should be low or zero. Do any door closers do this? Could any be mounted in reverse to achieve this?

A: What you’re looking for is a “back check” door closer”.  This feature dampens or brakes the opening, as well as controlling the close as a normal door closer.  You can look at the TS2000NVBC or the TS4000 which comes with back check as a standard feature. The TS4000 can be adjusted down to closing power 1, which is the lowest force available.

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