What is QM for Von Duprin?

The Von DuprinĀ® QM option controls motion to reduce operational noise.
It is available for the 996 trim, as well as 98/99 and 33A/35A rim and surface vertical rod devices.
The QM trim solution provides a damper-controlled lever return.
Likewise, the QM rim and surface vertical rod device option provides damper-controlled re-latching.
The QM option can be ordered pre-installed from the factory.
Retrofit kits are also available for both the trim and device, which provides a cost effective way to upgrade existing devices.
No modifications to the existing door or frame prep are required.
Compatible with other mechanical and electronic options including quiet electric latch retraction (QEL), accessible design (AX), request to exit switch (RX), cylinder (CD) and hex (HD) dogging to address a variety of applications.
Von Duprin devices and trims with the QM maintain ANSI BHMA A156.3 Grade 1 (2014), UL305 and UL10C certifications.
 
Coming Second quarter of 2018.
 
Features and benefits
  •  Controlled motion to reduce operational noise
  • 996 damper-controlled lever return
  • 98/99 and 33/35A dampercontrolled re-latching
  • Available pre-installed from factory or as a retrofit kit
  • Compatible with QEL, AX, RX, CD and HD
  • ANSI BHMA A156.3 Grade 1 (2014), UL305 and UL10C certified


Accepting orders for the QM option on 98/99 Rim Exit Devices, 33A/35A Rim Exit Devices, and 996L/L-BE-R/V Trims starting 4/23/2018.

Accepting orders for the QM option on the 98/9927 Surface Vertical Rod Devices, 3327A/3527A Surface Vertical Rod Exit Devices, and 996L/L-BE-M trims starting on 8/13/2018.




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