High-Quality Heavy Duty Fireproof Auto Door Closer [500 Series]

500 Series Door Closer

•      UL Listed. 1 Million Cycles In Endurance Are Guaranteed.5 Years.

•      Universal Application Designed For All Standard Installation.

•      Power Size Range: 1 ~5 in Various Closer Body,

•      Two Separate Valves For Close & Latch Speed Adjustment.

•      Optional Back Check Function.

•      Optional Built-In HOLD Open type:501 D, 502D, 503D

•      High Quality Hydraulic Fluid, Low Freezing-point. Door Closer Operates Smoothly from Temperature Of-30't to 40't.

Features:

•      Dual Valve, Closing And Latching Speed Controlled By Two Separate Regulating Valves.

•      Universal Application: Standard, Top-Jamb, Parallel Arm lnstalla1'1ons.

•      Standard Packing without Parallel Arm Bracket. The bracket be provided upon request.

•      Reinforced Type Adjustable Tube Arm.

•      Rack and Pinion Operation Contained In a High Tensile Precision Cast Aluminum Housing For The Highest Quality.

•       High Quality Hydraulic Fluid for High Lubricity and Constant Lubrication.

•      Optional Back Check(503BC.504BC.505BC).Controlled by Separate Regulating Valve.

•      Finish Selection: Silver (Alum), Bronze (Duro).Gold. Any Other Finishes Is Available Upon Request.

•      UL listed for Fire door Assembly Including UL l 0C.

Classification & Glossary

•      502:Size2.

•      502D:Size2, Built in HOLD Open type

•      503BC:Size3, Back Check.

Optional items:

•      C:Decorative P.V. Cover for 502,503,504 type. Steel Cover for 502 type only.

•      P:Parallel Arm Bracket.

•      BC: Bock Check.

GMB Door Closer applicable for

Width of door: not more than 1600 mm

Weight of door: under 200 kg

Opening angle: most extension 180 °

Style of door: security door, firedoor, house door, etc

Every model could be installed by these four ways. Accessories are needed for the Parallel Arm Installation and Slide Arm Installation.

Advanced function of GMB door closer:

•      Two speed valves: Closing speed valve 180°- 15° , latching speed valve 15°-0°

•      Build-in hold function:st75°

•      Dual valve. Closing and latching speed controlled by two separate regulating valves.

•      Back check function: Provide you with a temporary stop function between 65°to 180° to help prevent damage to door and or wall in case of the door opens with exercise force.

Delay Action: Delay time easily adjusted in less than l minute between l 80°-65°for the handicapped and elderly.

Barrier Free: With lighter powered spring to provide acceptable door control and lower opening resistance for handicapped and elderly.

Remark:

1. All types hove dual valves for separate closing & latch speed.

2. Standard color: Silver(AL).Bronze(Duro).Gold. Other color upon request.

3. AII types con be applied for parallel arm installation exception built-in hold open type.

4. More products for your choose out of catalogue, and we offer OEM project for new product.

Each door closer with installation instructions & template for your reference.

5. AII the products maybe change, the company reserves right to enter changes and regrettes not to issue prior notification.