Norton Rixson Q27 Series Heavy Duty Floor Closer with 3/4" Offset and 350 lb Door Weight Capacity

Norton Rixson Q27 Series Heavy Duty Floor Closer with 3/4" Offset and 350 lb Door Weight Capacity

Professional Heavy-Duty Floor Closer Solution

The Norton Rixson Q27 Series is a 3/4" offset-hung floor closer engineered for 1-3/4" door frame installation on interior or exterior doors weighing up to 350 lbs. This Grade 1 certified floor closer features a robust Cycolac rust-proof cement case construction with built-in positive dead stop functionality available at 85°, 90°, or 95° opening degrees. The system includes a 180° top pivot and one M19 intermediate pivot for doors ranging from 60" to 90" in height, with mortise arm thru-bolt attachment for secure installation.

Professional Features & Benefits

• Heavy-Duty Door Weight Capacity: Supports doors up to 350 lbs with professional-grade internal components for consistent long-term operation.
• Precision Dead Stop Control: Built-in positive dead stop prevents doors from swinging beyond the desired opening degree with options for 85°, 90°, or 95° configurations.
• Advanced Valve System: Separate independent valves for closing speed, latch speed, and backcheck provide precision adjustment and enhanced operational control.
• Robust Construction: Heavy-duty hardened one-piece steel spindle and Cycolac rust-proof cement case designed for demanding commercial applications.
• Flexible Installation: 3/4" offset design accommodates doors from 60" to 90" in height with surface-attached bottom arm allowing closer removal without demounting door.
• Complete Pivot System: Includes 180° top pivot and M19 intermediate pivot with additional pivots recommended for every 30" of door height beyond 90".
• Grade 1 Certification: ANSI/BHMA A156.4 Grade 1 certified for commercial applications with UL listing available on F prefix models.
• Manufacturer Warranty: 10 Year Limited warranty for added confidence and protection in commercial installations.

Technical Specifications

• ANSI/BHMA: ANSI/BHMA A156.4, Grade 1
• Commercial/Residential: Commercial
• Cover Type: Cycolac, rust-proof cement case
• Delay Function: Yes
• Department: Door Hardware
• Door Swing: Single Acting
• Door Weight: 250 lbs.
• Duty Level: Heavy Duty
• Grade: Grade 1
• Hang Type: Offset Hung
• Hold Open Feature: No
• Mounting Method: Offset
• Product Category: Door Controls
• Product Group: Door Controls
• Product Model: Q27N
• Product Subgroup: Door Closers - Floor
• Product Type: Floor Door Closers
• Series: Q27 Series
• Subcategory: Floor Closers
• Warranty: 10 Year Limited

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness of 1-3/4", door weight up to 350 lbs, and door width up to 4'0".
2. Use manufacturer-provided templates to mark mounting hole locations accurately on floor and door frame surfaces for the 3/4" offset configuration.
3. Prepare floor and door by drilling required holes and routing as specified for mortise arm with thru-bolt attachment installation.
4. Install the floor closer unit with included 180° top pivot and M19 intermediate pivot, ensuring proper alignment for doors 60" to 90" in height.
5. Adjust the three independent valves for closing speed, latch speed, and backcheck to achieve desired door operation and configure dead stop at specified degree (85°, 90°, or 95°).
6. Test door operation throughout full range of motion and verify positive dead stop function prevents over-swing. Refer to manufacturer documentation for complete installation details and valve adjustment procedures.

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose Norton Rixson Quality?

Norton Rixson Q27 Series floor closers deliver professional-grade reliability with heavy-duty hardened one-piece steel spindle construction and Cycolac rust-proof cement case rated for doors up to 350 lbs. ANSI/BHMA A156.4 Grade 1 certification and 10 Year Limited warranty ensure dependable performance in demanding commercial applications. Engineered with separate independent valves and built-in positive dead stop functionality for precise control and consistent operation.