DA-351 UO EN TB

Manufacturer: Sargent 

Product Description: Sargent Universal Arm Door Closer: Aluminum 

Grade: 1

Finish: Aluminum 

Sargent Door Closer, Universal Arm, Delayed Action, Aluminum, Thru Bolt, Closer Spring Adjustment: effects the entire cycle of the door closer movement, used to size closer for application requirements, adjustable to compensate for door size and draft conditions.

Backcheck Valve: At approximately 70 degrees of the open cycle, the Backcheck Valve begins to slow the door's motion, prevents the door from slamming into the door's stop, A positive stop is required, Backcheck cannot be used as a stop,

Delayed Action Valve (Optional):  Holds the door in the open position momentarily, 20 second minimum hold open delay.

Closing Speed Valve: Controls how fast the door closes to approximately 8" from the closed position, along with the closer spring

Latching Speed Valve: Controls the speed of the door during the final 8" of the door swing, the force the door closes with is controlled by the closer spring,  this adjustment is critical for door latching