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Exit Trim for Von Duprin 33A/35A Series Exit Devices
Von Duprin 388 Night Latch Cylinder Trim (Key retracts latchbolt optional pull required)
Von Duprin devices are engineered to add value over time. The robust materials and unique engineering add to the
longevity, while the flexible design improves the value. The universal center case allows users to change or upgrade features on their current device as security needs evolve.
The 33A/35A Series is a narrow stile push pad device popular for its vast application coverage. With many field
configurable and upgradeable solutions available, it’s easy to enhance the functionality of an existing device.
Mechanical and electronic options include quiet electric latch retraction, delayed and controlled egress,
concealed vertical cables and security indicators. It’s one way Von Duprin protects its customers’ investments
long into the future.
Passion driving performance With superior products comes exceptional customer care. Von Duprin customers are supported by industry-leading expertise. Allegion’s representatives average more than 15 years of experience, so you’re assured to receive knowledgeable advice on fire and life safety codes, installation resources and more. And for those looking to take their skills to the next level, Allegion offers instructor-led workshops, videos and online courses. It’s another way Von Duprin stands by our customers—today, tomorrow and for years to come.
Also known as
von duprin 388
von duprin 388 trim
von duprin 388nl
Resources and Downloads
Manufacturer Resources
Product Specs
- Category:
- Exit Devices and Trim
- Subcategory:
- Exit Device Trim
- Series:
- 33 & 35 Series
- Grade:
- Grade 1
- Duty Level:
- Heavy Duty
- Compatibilty:
- 33A/35A Series Exit Devices
- Product Group:
- Exit Devices and Trim
- Product Subgroup:
- Exit Device Trim
- Product Type:
- Exit Device Trim
- Commercial/Residential:
- Commercial
- Base Size:
- 7 15/32" x 1 11/16" (190x43mm)
- Projection:
- 1" (25mm)
- Cylinder:
- Rim
- Tags:
- von duprin 388, von duprin 388 trim, von duprin 388nl
- Product Model:
- 388
- Product Function:
- Night Latch Cylinder Trim
- Door Hand Direction:
- Non-Handed
Von Duprin 388NL 26D – Frequently Asked Questions
1) What is the Von Duprin 388 Night Latch Cylinder Trim used for?
The Von Duprin 388 provides cylinder trim functionality for 33A and 35A series exit devices. It allows key operation from the secure side while maintaining night latch operation. The trim enables controlled access without compromising emergency egress requirements.
2) Which Von Duprin exit devices is the 388 trim compatible with?
The 388 trim is specifically designed for Von Duprin 33A and 35A series exit devices. Verify your exit device model number before ordering. The trim will not fit other Von Duprin series without proper device compatibility.
3) Does the 388 trim require specific door handing?
Yes, specify door handing when ordering the 388 trim. Right hand or left hand designation determines proper cylinder placement and trim orientation. Verify door swing direction and hinge location to ensure correct operation.
4) What finishes are available for the Von Duprin 388 trim?
The 388 trim is available in standard Von Duprin finishes including aluminum, dark bronze, and others. Match the trim finish to your exit device finish for consistent appearance. Verify available finish options when placing your order.
5) What grade rating does the 388 night latch trim provide?
The Von Duprin 388 maintains the grade rating of the base 33A or 35A exit device when properly installed. The trim does not reduce the device's performance standards. Verify complete assembly meets required grade specifications for your application.
6) Does the 388 trim meet fire door code requirements?
When used with listed 33A or 35A exit devices, the 388 trim maintains fire door compliance. The assembly must match the door's fire rating requirements. Consult local codes and fire marshal requirements for specific applications.
7) What cylinder type does the 388 trim accommodate?
The 388 trim accepts standard mortise cylinders with appropriate cam configuration. Verify cylinder length and cam orientation match the trim requirements. The cylinder must be compatible with the exit device's locking mechanism.
8) Are special tools required to install the 388 trim?
Installation requires standard door hardware tools including drill, bits, and hand tools. Follow Von Duprin installation templates for proper positioning. Use manufacturer specifications for all hole locations and dimensions.
9) How is the 388 night latch trim maintained?
Maintain the 388 trim through regular cleaning and lubrication of cylinder mechanism. Check trim attachment and alignment periodically. Follow Von Duprin maintenance guidelines for optimal performance and longevity.
10) What other Von Duprin trim options work with 33A and 35A devices?
Von Duprin offers various trim options for 33A and 35A series including lever trims, pull trims, and other cylinder configurations. Browse our Von Duprin collection for compatible trim alternatives and complete exit device solutions.
11) Can the 388 trim be field-installed on existing exit devices?
Yes, the 388 trim can be added to existing compatible 33A and 35A exit devices. Verify the device is properly prepared for trim installation. Some field modification may be required following manufacturer specifications.
12) What door thickness range does the 388 trim accommodate?
The 388 trim accommodates standard door thickness ranges compatible with 33A and 35A exit devices. Verify door thickness falls within device specifications. Check manufacturer documentation for exact thickness requirements and trim adjustments.
How fast can I get the Von Duprin 388NL 26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Von Duprin 388NL 26D come with a warranty?
Absolutely. The Von Duprin 388NL 26D is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Von Duprin 388NL 26D?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Von Duprin 388NL 26D from ZenSupply?
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and
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every order.
Our team is always ready to help you choose the right product for your project.