Norton Rixson 427 Series Heavy...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3,052.00
Norton Rixson Norton Rixson 427 Series - 3/4" Offset Heavy Duty Floor Closer for Deep Reveal Door Frame, 250 lbs. Door Weight RIX-427

Norton Rixson 427 Series Heavy Duty Floor Closer with 3/4" Offset Design for 250 lb Doors

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Model: 42785N-RH-626
$3,052.00
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Norton Rixson 427 Series Heavy Duty Floor Closer with 3/4" Offset Design for 250 lb Doors

Professional Floor Closer Solution for Deep Reveal Applications

The Norton Rixson 427 Series is a heavy-duty 3/4" offset-hung floor closer engineered for deep reveal door frame installations supporting interior or exterior doors weighing up to 250 lbs. This Grade 1 certified closer features a robust Cycolac rust-proof cement case construction and accommodates doors from 60" to 90" in height with door widths up to 4'0". The unit includes separate independent valves for closing speed, latch speed, and backcheck control with built-in positive dead stop functionality.

Professional Features & Benefits

  • Heavy-Duty Weight Capacity: Supports doors up to 250 lbs with robust internal components designed for consistent long-term operation in demanding applications.
  • 3/4" Offset Design: Specifically engineered for deep reveal and alcove door frame installations where standard closers cannot accommodate the frame depth.
  • Precision Speed Control: Separate independent valves for closing speed, latch speed, and backcheck provide enhanced operational control and smooth door movement.
  • Built-in Dead Stop Protection: Heavy-duty hardened one-piece steel spindle with positive dead stop prevents doors from swinging beyond desired opening degree (specify 85°, 90°, 95° or 105°).
  • Versatile Door Compatibility: Accommodates doors 60" to 90" in height and up to 4'0" in width for interior or exterior single-acting applications.
  • Weather-Resistant Construction: Cycolac rust-proof cement case provides durability for both interior and exterior door installations.
  • Grade 1 Certification: ANSI/BHMA A156.4 Grade 1 rating ensures commercial-grade performance and reliability standards.
  • Manufacturer Warranty: 10-year limited warranty provides long-term protection and confidence in product durability.

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: 427N
  • Product Subgroup: Door Closers - Floor
  • Product Type: Floor Door Closers
  • Series: 427 Series
  • Subcategory: Floor Closers
  • Warranty: 10 Year Limited

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, weight capacity up to 250 lbs, and deep reveal frame compatibility for this offset-hung design.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on floor and door frame surfaces, ensuring proper alignment for 3/4" offset installation.
  3. Prepare floor and frame by drilling required holes and routing as specified in manufacturer instructions for the 427N model configuration.
  4. Install 180 x 102 top pivot (included) and 119 intermediate pivots (order separately) according to door height requirements - doors 60" to 90" require one intermediate pivot with additional pivots for each 30" increment.
  5. Mount floor closer unit and secure all mounting hardware per manufacturer torque specifications, ensuring proper vertical door adjustment capability.
  6. Adjust separate independent valves for closing speed, latch speed, and backcheck to achieve desired door operation and set built-in dead stop to specified degree (85°, 90°, 95° or 105°).
  7. Test closer operation throughout full range of motion and verify proper weight support and smooth operation. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings with Deep Reveal Entrances
  • Educational Facilities with Alcove Door Installations
  • Healthcare Institutions Requiring Heavy-Duty Door Control
  • Retail Establishments with Wide Door Applications
  • Industrial and Warehouse Facilities with Exterior Access
  • Multi-Tenant Residential Properties with Commercial-Grade Requirements
  • Government and Municipal Buildings with Specialized Frame Configurations

Why Choose Norton Rixson Quality?

Norton Rixson 427 Series floor closers deliver professional-grade reliability with heavy-duty hardened one-piece steel spindle construction and robust internal components engineered for consistent long-term operation. ANSI/BHMA A156.4 Grade 1 certification and 10-year limited warranty ensure dependable performance in demanding commercial applications. The unique 3/4" offset design and Cycolac rust-proof cement case construction provide specialized solutions for deep reveal installations where standard closers cannot accommodate frame requirements.

Product Specs

Series:
427 Series
Duty Level:
Heavy Duty
Grade:
Grade 1
Door Swing:
Single Acting
Warranty:
10 Year Limited
ANSI/BHMA:
ANSI/BHMA A156.4, Grade 1
Product Group:
Door Controls
Product Subgroup:
Door Closers - Floor
Product Type:
Floor Door Closers
Subcategory:
Floor Closers
Door Weight:
250 lbs.
Commercial/Residential:
Commercial
Hang Type:
Offset Hung
Product Model:
427N
Delay Function:
Yes
Hold Open Feature:
No
Mounting Method:
Offset
Product Category:
Door Controls
Department:
Door Hardware
Cover Type:
Cycolac, rust-proof cement case

Norton Rixson 42785N-RH-626 – Frequently Asked Questions

1) Will a Norton Rixson 427 floor closer work in a deep reveal or alcove frame where a standard floor closer won't fit?
That's exactly what the 427 is built for. It's a 3/4 inch offset-hung floor closer, so the pivot point sits 3/4 inch off the frame, which is what lets it work in deep reveal and alcove frame conditions where a center-hung or standard closer can't clear the frame depth. If your opening is center-hung rather than offset-hung, this is the wrong hang type and you need a center-hung floor closer instead.
2) How heavy a door can the Rixson 427 floor closer handle, and what door sizes does it cover?
Up to 250 lbs, interior or exterior. The 427 covers doors 60 to 90 inches tall and up to 4'0" wide. If your leaf is wider than 4 feet or heavier than 250 pounds, it's outside the range of this closer, so size up rather than pushing it.
3) Can the Rixson 427 be used on a double-acting door that swings both ways?
No. The 427 is single acting only, so it handles a door that swings one direction. It's also handed, left hand or right hand, and you specify that when you order. For a door that needs to swing both ways you need a double-acting floor closer, not this one.
4) What else do I need to order with a Rixson 427 to complete the installation?
The 180 x 102 top pivot ships with the closer. The intermediate pivots do not, order those separately. A door 60 to 90 inches tall takes one 119 intermediate pivot, and you add another for each additional 30 inches of height. Budget for the cement case work in the floor too, since this is a concealed floor closer and the case has to be set before the pour or cut in.
5) Is the Rixson 427 Grade 1, and will it meet a commercial spec?
ANSI/BHMA A156.4, Grade 1, and it's a commercial-duty product, heavy duty class. That's the top grade under A156.4 for door controls, which is what most institutional and government specs call for on a main entrance. For a facility standardizing across openings, the 427 also comes in 13 finishes from 605 bright brass through 626 satin chrome plus black and white suede powder, so the cover can match what's already in the building.
6) I'm replacing an old floor closer and only need the guts, not a whole new case. Is the Rixson 427 the right buy?
The 427 is sold as a complete offset-hung closer, so if the existing case in your floor is sound and you only want a replacement body, look at the Dormakaba options instead: the Dorma BTS80 is offered as a body only, and the BTS75V comes less spindle. Reusing a case only works when the new body matches the existing case footprint and hang type, so verify the case you have before ordering either one. If the case is cracked or the floor is being redone anyway, the 427 with its Cycolac cement case is the cleaner replacement.
7) I need a hold open floor closer - does the Rixson 427 do that, or should I look at the Dorma BTS75V?
Neither of those is the answer if hold open is a fixed requirement of the unit itself. The Dormakaba BTS75V is specified as NHO, non hold open. The Norton Rixson 427 base unit is likewise listed without a hold open feature, but its arm function is selectable at order time between non-hold-open and selective hold open, so the hold open behavior on a 427 comes from the arm function you choose rather than from a different model. If the opening needs to stand open, order the 427 with the selective hold open arm function and the swing degree that matches the stop point - 85, 90, 95, or 105 degrees.
8) The frame is a deep reveal and a center hung closer will not work - what floor closer handles that?
The Norton Rixson 427 is built for exactly that condition: it is a 3/4 inch offset-hung, offset-mounted floor closer engineered for deep reveal and alcove frames where a standard closer cannot accommodate the frame depth, on interior or exterior single-acting doors 60 to 90 inches tall and up to 4 feet wide at up to 250 lbs. A concealed floor closer body such as the Dormakaba BTS80 is a heavy duty unit as well, but it is supplied as a body only, so the hanging arrangement is determined by the pivots and spindle specified with it rather than by the closer. Where the reveal depth is the governing constraint, the 427 arrives already configured as the offset-hung solution.
9) Does the Rixson 427 hold the door open, and can I get a hold-open version?
Both ways are available. The 427 comes with a non-hold-open arm or a selective hold open arm, so pick the arm function at order time. Note that selective hold open on any floor closer is not permitted on a fire rated opening, so on labelled doors order non-hold-open.
10) Can I set the opening angle so the door doesn't slam into the adjacent wall?
Yes, and it's a mechanical stop, not a friction setting. The 427 has a hardened one-piece steel spindle with a built-in positive dead stop, specified at 85, 90, 95 or 105 degrees. That stops the leaf before it hits whatever is behind it, so you don't need a separate wall or floor stop for overswing.
11) Can the closing and latching speed be adjusted after the Rixson 427 is installed?
Three separate independent valves handle it: closing speed, latch speed, and backcheck. Backcheck is the one that protects the door and frame when somebody throws it open in a wind-loaded entrance. A delay function is included as well. All of it is adjusted at the unit, so you can tune the opening on site rather than living with a factory setting.
12) Is there an ADA-compliant opening force option for the Rixson 427 floor closer?
A lighter spring option is offered for ADA applications, ordered as a yes or no choice on the closer. That reduces opening force for accessible openings. On a 250 lb exterior leaf, understand the tradeoff: less spring power means less closing force to overcome stack pressure or wind, so match the spring to the actual door.
13) Will a floor closer in a cement case rust out in an exterior entrance?
The 427 uses a Cycolac rust-proof cement case, which is why it's rated for exterior as well as interior openings. A sealed closer option is also offered, which is what you want where water gets into the case, an exterior entry with driven rain or a floor that gets washed down. On a wet or washed floor, order the sealed version.
14) Why use a floor closer instead of an overhead door closer on a heavy entrance?
Two reasons drive the choice. On an all-glass or narrow-stile aluminum entrance there's often nowhere to mount an overhead closer, and the pivot has to carry the leaf anyway. And on a 250 lb door, a concealed floor unit puts the control at the pivot where the load is, with nothing visible on the door or frame. The cost is in the floor: an offset-hung unit like the 427 needs a cement case set in the slab, so it's a straightforward call on new construction and a much bigger job as a retrofit into finished concrete.
15) We are standardizing entry doors across a portfolio and want one floor closer that meets ADA opening force and matches existing hardware finishes - which one?
The Norton Rixson 427 is the one that can be specified to both conditions at order time. It offers a lighter spring option intended for ADA opening force, and it is available in 13 finishes including 605 bright brass, 626 satin chrome, 613 oil rubbed bronze, 622 black painted, and BSP black suede powder, so existing door hardware can be matched across a fleet. It is a commercial, heavy duty, Grade 1 unit rated to 250 lb doors with a delay function and separate valves for closing speed, latch speed, and backcheck. The Dormakaba BTS75V and BTS80 are supplied as closer bodies, so a finish match across an opening is handled by the cover plate specified with them rather than by the closer itself.
16) The door swings both ways - can I use a 427 or one of the Dorma floor closers?
The Norton Rixson 427 is a single-acting closer, so it is not the unit for a double-acting opening. The Dormakaba BTS80 and BTS75V are supplied as floor closer bodies, with the BTS75V specified as non hold open and shipped with a cement case less spindle; the acting arrangement on those follows the spindle and pivot set specified with the body. For a door that must swing both directions, confirm the closer body and spindle combination is rated double acting before ordering, and reserve the 427 for single-acting interior or exterior doors up to 250 lbs.
17) Does the Rixson 427 come in a finish that matches the rest of our door hardware?
Thirteen finishes are offered: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 oil rubbed bronze, 613E dark oxidized satin bronze, 618 bright nickel, 619 satin nickel, 622 black painted, 625 bright chrome, 626 satin chrome, plus black suede powder and white suede powder. On a floor closer the finish applies to the exposed cover and pivot hardware, which is the only part anyone sees once the case is in the slab. 626 and 630 range satin finishes are the usual match for commercial openings.
18) Difference between the Dorma BTS75V and BTS80 when replacing a Rixson 427?
The BTS75V is a Grade 1 floor closer body supplied with a cement case, less spindle, and specified non hold open. The BTS80 is a concealed floor closer body only and is not fire rated. Both are Dormakaba units ordered as bodies, so pivots, spindle, and cover are specified alongside. The Norton Rixson 427 differs from both in that it is ordered as a configured 3/4 inch offset-hung assembly - handing, finish, swing degree of 85, 90, 95 or 105, arm function, and spindle extension are all selected on the order, and the Cycolac rust-proof cement case is part of the unit.
How fast can I get the Norton Rixson 42785N-RH-626 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 Norton Rixson 42785N-RH-626 come with a warranty?
Absolutely. The Norton Rixson 42785N-RH-626 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 Norton Rixson 42785N-RH-626?
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
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