90123 06/22
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General Information
1-800-727-5477 www.sargentlock.com
3
1331 Series Door Closers
Closer Spring Adjustment
(not shown) Effects the entire cycle of the door closer movement Used to size closer for application requirements Determines the amount of force with which the door closes and the amount of force required to open the door Adjustable to compensate for door size and draft conditions
Latching speed valve
Controls the speed of the door during the final 8" of door swing The force the door closes with is controlled by the closer spring Note: This adjustment is critical for door latching
Closing speed valve
Controls how fast the door closes to approximately 8" from the closed position
How to Select the Proper Closer
Things to Consider
1. Size and Weight of Door The 1331 Door Closer is non-sized so that closing force can be adjusted in the field to accommodate various door sizes and weights. 2. Interior Application The standard application is the most efficient in terms of power and control. 3. Exterior Application The top jamb, parallel arm application should be used. Exterior doors require greater closing forces because of draft conditions. Always place the closers out of the weather. 4. Degree of Opening Proper arm and position on the door is most important to permit the door to open far enough to allow adequate traffic flow. 5. Function Closers are available with hold-open or positive stop arms. 6. Special Condition Consult factory when special hinges, overhead holders or other specialized hardware is used.
Door Closer Cycle Opening Cycle Backcheck valve
At approximately 70 of the open cycle, the backcheck valve begins to slow the door's motion Prevents the door from slamming into the door's stop Valve is used to control the intensity of the backcheck Note: A positive stop is required, backcheck cannot be used as a stop
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