Norton Rixson QT27 Series Heavy Duty Floor Closer with 3/4" Offset and 350 lb Door Weight Capacity

Norton Rixson QT27 Series Heavy Duty Floor Closer with 3/4" Offset and 350 lb Door Weight Capacity

Professional Floor Closer Solution for Heavy Commercial Doors

The Norton Rixson QT27 Series is a heavy-duty 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 Cycolac rust-proof cement case with built-in positive dead stop and separate independent valves for closing speed, latch speed, and backcheck control. The unit includes a 180° top pivot and one M19 intermediate pivot for doors ranging from 60" to 90" in height.

Professional Features & Benefits

• Heavy-Duty Weight Capacity: Supports doors up to 350 lbs with robust internal components designed for long-term reliability in demanding commercial applications.
• 3/4" Offset Design: Offset-hung configuration accommodates 1-3/4" door frames with surface-attached bottom arm allowing closer removal without demounting door.
• Built-In Dead Stop Protection: Hardened one-piece steel spindle with positive dead stop prevents doors from swinging beyond desired opening degree at 85°, 90°, or 95° specifications.
• Precision Speed Control: Separate independent valves provide individual adjustment for closing speed, latch speed, and backcheck for enhanced operational control.
• Weather-Resistant Construction: Cycolac rust-proof cement case with increased depth design suitable for interior or exterior door applications.
• Complete Pivot System: Includes 180° top pivot and M19 intermediate pivot with mortise arm and thru-bolt attachment for secure installation.
• ANSI/BHMA Grade 1 Certified: Meets ANSI/BHMA A156.4 Grade 1 standards for commercial-grade performance and durability.
• 10-Year Limited Warranty: Comprehensive manufacturer warranty provides long-term protection and confidence in product reliability.

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: QT27N
• Product Subgroup: Door Closers - Floor
• Product Type: Floor Door Closers
• Series: QT27 Series
• Subcategory: Floor Closers
• Warranty: 10 Year Limited

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness, frame dimensions, and weight capacity for this 350 lb rated closer.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and floor surfaces for the 3/4" offset configuration.
3. Prepare door and frame by drilling required holes and routing as specified for the mortise arm with thru-bolt attachment system.
4. Install the floor closer unit, 180° top pivot, and M19 intermediate pivot per manufacturer torque specifications and alignment requirements.
5. Adjust the separate independent valves for closing speed, latch speed, and backcheck to achieve desired door operation and set dead stop at specified degree (85°, 90°, or 95°).
6. Test door operation throughout full range of motion to verify proper function, weight support, and dead stop engagement. Refer to manufacturer documentation for complete installation details and troubleshooting.

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 QT27 Series floor closers deliver professional-grade reliability with heavy-duty construction rated for doors up to 350 lbs and ANSI/BHMA Grade 1 certification. The 10-year limited warranty and robust Cycolac rust-proof cement case ensure dependable performance in demanding commercial applications. Engineered with hardened one-piece steel spindle and separate valve controls for precision operation where consistent door control is essential.