fire rated surface vertical rod

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Answer
The Von Duprin 1609 cannot be used on a pair of fire rated doors. We recommend using the Von Duprin fire rated mortise exit device in lieu of the rim device such as the Von Duprin 5575-F,...
The top latch for a Fire rated surface vertical rod device is part #650375-00 which replaced the old part #F588.
9827-F Series ,9827-F Series, 8827-F, 2227-F
The 6111 electric strike can be used only on non rated openings less bottom rod with pullman top latch (use ES prefix when ordering device). Device back set will change to match the centerline of t...
Not for use in fire rated openings.
9847-F Series ,9947-F Series, 98/9947WDC-F, 5547-F, 5547WDC-F, 8847-F
For non fire rated doors only the 1609 strike would be used on the inactive leaf that is flush/surface bolted or with a *surface or concealed vertical rod device on other door leaf.
Yes, the top latch for the 25-V carried over from the 18-V device. Surface vertical rod top latch = part #650389 or #650375(fire rated)
You should use the LX switch with the Von Duprin surface vertical rod exit device because the rods are exposed and are vulnerable to attack. IE, the top rod can be grasped and forced down to retrac...