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PDQ GT148 PHL Grade 1 Classroom Function Lockset
Function Information:
- Latchbolt operated by lever from either side
- Outside lever locked by key from outside
- Outside lever unlocked by key from outside
- Inside lever always operates latch
- ANSI F84
The PDQ GT148 PHL is a high-security Grade 1 Cylindrical Lockset specifically engineered for the rigorous demands of K-12 schools, universities, and healthcare facilities. As the flagship of the GT Series, this hardware is designed to solve the problem of premature lock failure in high-abuse environments. With a massive 2100 in-lbs of torque resistance, it provides nearly triple the strength required for standard Grade 1 certification, ensuring the Philadelphia (PHL) lever remains operational even after attempted vandalism or forced entry.
By utilizing a chromated cold-rolled steel mechanism and billet steel spindles, the GT148 eliminates the common issue of "lever sag," providing a 25-year solution for facility managers who require "set-and-forget" reliability.
ANSI F84 Classroom Function: Essential Security Control
The ANSI F84 (Classroom) function is the industry standard for educational environments, balancing essential security with emergency life safety. This function ensures that control of the room's accessibility remains in the hands of authorized personnel while guaranteeing a safe exit for occupants.
- Exterior Operation: The latchbolt is operated by the lever from the outside, unless the lever is locked by a key. Once locked, the outside lever is rigid and entry is only possible via a key.
- Interior Operation: The inside lever always operates the latchbolt, ensuring that students and staff can exit the room at any time without a key or special knowledge, meeting all life-safety fire codes.
- Security Benefit: Because the lock does not have an interior push-button, students cannot accidentally or intentionally lock the teacher out of the room.
- Deadlocking Feature: Includes a deadlocking latchbolt to prevent "shimming" or forced retraction of the latch from the exterior.
Technical Specifications
| Feature | Details |
| Model | PDQ GT148 PHL |
| Function | Classroom (ANSI F84) |
| Certification | ANSI/BHMA Grade 1, Series 4000 |
| Torque Resistance | Exceeds 2100 in-lbs |
| Backset | 2-3/4" Only (Deadlocking) |
| Latchbolt | 9/16" Throw |
| Strike | 4-7/8" x 1-1/4" ASA Strike |
| Fire Rating | UL/cUL Listed 3-Hour "A" Label |
| Windstorm Rating | Design Load Rating: 1485 lbf |
| Warranty | 25-Year Limited Warranty |
High-Performance Solutions for Institutional Facilities
The PDQ GT Series is built to address the specific vulnerabilities of institutional infrastructure:
- Vandal-Resistant Engineering: The use of billet steel spindles on the locking side provides a level of structural integrity that standard commercial locks cannot match, making the GT148 a primary solution for high-traffic school hallways.
- Extreme Weather Protection: Certified as a Windstorm Resistant Product (ANSI A250.13), this lockset is designed to withstand the pressure and impact loads of severe weather, making it ideal for coastal regions or critical emergency shelters.
- ADA Accessibility Compliance: The PHL Philadelphia lever features a 41° rotation and is fully compliant with ADA accessibility requirements, allowing for easy operation without tight grasping or twisting of the wrist.
- Universal Keying Integration: Available in keyways for most major manufacturers and compatible with Small Format (SFIC) or Large Format Interchangeable Cores (LFIC). This allows for rapid facility-wide re-keying without disassembling the lock.
- Buy American Act Compliant: Assembled in the USA with domestic and foreign materials, satisfying the procurement requirements for federal and state-funded projects.
Lead Time Note: The US26D Satin Chrome finish is a standard stock item for fast shipping. For all other architectural finishes, please allow a 3-5 day lead time plus shipping.
| Finish with BHMA code | 626 - US26D Satin Chrome or 613 - US10B Oil Rubbed Bronze or 605 - US3 Polish Brass or 606 - US4 Satin Brass or 612 - US10 Satin Bronze or 625 - US26 Polish Chrome |
| Brand | PDQ |
| ANSI Cyl Lock Function | F84 - Classroom |
| Trim Design | PHL |
| Series | PDQ - GT Series |
| Standard Cylinders and Keyways | Schlage C Keyway |
| Backset | 2-3/4" Backset |
| Strike Type | 4-7/8 ANSI Strike - Hollow Metal Frames |
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