*Actual product and finish may vary
D4551 Stanley Door Closer Regular Arm Size 1 thru 4
Arms & brackets – Tri-pack standard (regular, top jamb, parallel configurations).
D4550 Series is Stanley’s best performing Heavy Duty Closer. The cylinder body is manufactured using R-14 Silicon Aluminum Alloy providing superior strength and durability on institutional applications. Available in a variety of standard and heavy-duty arm configurations accommodating a broader range of today’s growing architectural application requirements.
Fully Hydraulic Checking - Controls the door through the entire opening and closing cycles by providing adjustable backcheck upon opening and adjusting general and latch speeds through the closing cycle.
Adjustable Spring Power - The D-4551 Series Door Closers are adjustable from size 1 through 4 more than 20% adjustment over size 4. The D-4551 Series Door Closers are designed to meet entrance accessibility requirements of 5LBF opening force or less.
Non-Critical Regulation - The separate adjustments for backcheck, general and latch speeds are equipped with non-critical “V-Slot” regulating valves which allow for fine tuning the closing and latching speeds as well as the backcheck intensity.
All Season Fluid - All season fluid eliminates the need for seasonal adjustment.
Special High Silicon Aluminum Alloy Housing - All D-4551 Series Door Closers are constructed of RYOBI’S R14 HIGH SILICON ALUMINUM ALLOY to exceed the ANSI/BHMA A156.4 Grade 1 requirements.
Forged Arms - Heavy duty forged arms are interchangeable between the D-4550 and D-3550 Series Door Closers.
High Impact Cover - All D-4550 / D-4551 Series Door Closers are shipped with a high impact self-extinguishing decorative cover.
Maintenance Free - Door Closers mounted in accordance with the provided installation instructions are maintenance free from periodic inspection and adjustment.
ANSI and U.L. Specifications
The D-4550 / D-4551 Series Door Closers have been tested and exceed the requirements of the ANSI/BHMA Standard A156.4 - 2000 Grade 1.
UL listed with Underwriters’ Laboratories, Inc. and Underwriters’ Laboratories of Canada for “Self-Closing Doors Without Hold- Open Feature”. (File number 7525R).
D4551 Stanley Door Closer Surface Mount Regular Arm Size 1 thru 4
- Brand: Stanley K2
- Product Code: D4551