BEST PERFORMED INDUSTRIAL DOOR CLOSER
*To order models with Delayed Action, suffix DA to closer. EX. D-3550DA / D-3550DA UNIV. / D-3550TDA
LATCHING POWER ADJUSTMENT
By changing the position of the frame arm on the foot bracket closing force at the latch can be increased or decreased.
D-3550 Series Door Closers can be used on both RH and LH doors and on both push side and pull side mountings.
TWO SPEED CONTROL VALVES
There are two speed ranges for door closing speed which can be adjusted by independent speed valves.
The non handed, optional hold-open arm allows the door to be held open at any angles between 70 and 180 degrees.
When doors are violently opened by pedestrians or wind, the backcheck feature reduces the likelihood of damage should contact be made with an adjacent wall or obstacle.
OPTIONAL DELAYED ACTION
Once set, the door - when opened beyond 70 degrees enters into a delayed mode allowing additional closing time.
CE EN 1154
D-3550 Series Door Closers have been successfully type-tested for conformity to all of the requirements of EN1154 ( including EN1634 Part. 1 )
D-3550 Series Door Closers are listed on UL228 standard.
ANSI/BHMA GRADE 1
D-3550 Series Door Closers meet with the requirements of ANSI/BHMA Grade 1.
D-3550 Door Closers are available in SILVER, DARK-BRONZE, METALIC LEMON GOLD, BLACK, and WHITE finishes.