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FAQs

What is comparable to a Sargent 7000 series?

Resolution: The Von Duprin 237Lx378LThis unit is a lever by lever with concealed vertical rods. :

Can any Glynn Johnson overhead stops be mounted on the pull side?

Resolution: For surface applied overhead stops, specify a J suffix for pull side mounting. :

How much extra distance can a Glynnn-Johnson (GJ) overhead stop be pushed when forced?

Resolution: A door can open an additional five to seven degrees when forced. :

What is the difference between the 471U, the 472U, and 473U strikes?

Resolution: The 471U is for a 5547 with a metal door and frame.The 472U is for a 5547WDC with a wood frame and a 1-3/4" thick door. The 473U is for a 5547WDC with a wood frame and a 2-1/4" thick door. :

Can I use an RX switch to trigger a QEL?

Resolution: This is generally not recommended, but would depend on the desired description of operation of the opening.For most QEL/MEL applications;If an RX switch is used to trigger the operation, the motor ...:

What does the "D" signify when ordering a MB1-D?

Resolution: The "D" is for the cut out of the coordinator, not the mounting bracket. :

Did Von Duprin make a door position switch at one time?

Resolution: Yes. MS764 made by Sentrol:

The wires are missing from a 900-BBK. would those wires be apart of the back up board, (900-BB) or with batteries (900-BAT)?

Resolution: The wires are soldered to the 900-BB board.If you need help with replacement parts, contact sales support or product support for further assistance at 877-671-7011.Option 2 is sales support.Op...:

Is a Pullman latch with electric strike application a good option for security?

Resolution: If the door is pulled hard enough, the Pullman spring latch may depress far enough to allow it to ride over the the closed lip of an electric strike. Please contact Von Duprin support to...:

Can a Primus cylinder be ordered and shipped with a lock?

Resolution: All locks must be ordered less cylinder, then the Primus/Primus XP cylinder must be ordered on a separate line except the B700 & B800 Series deadbolts. :