International Door Closers D310-S Adjustable ADA OHC 105 Hold Open Back Stop

International Door Closers D310-S Adjustable ADA OHC 105 Hold Open Back Stop delivers exceptional functionality and compliance with accessibility standards. Designed for aluminum doors and frames, this overhead concealed closer features a top arm assembly that accommodates various loading types, ensuring flexibility for center pivoted applications. Its adjustable spring power can effectively support a range of door weights from 5 lbs to 8.5 lbs, making it suitable for both light and medium duty setups. Engineered to withstand demanding conditions, the D310-S boasts a leak-free performance thanks to its innovative steel spring cap and high-performance O-ring technology. The built-in positive back stop allows the door to open to a maximum of 105 degrees, with hold-open functionality available for convenience. This closer is compatible with both center hung and offset doors, making it a versatile choice for various installations. The unit includes two adjustable control valves for closing speed and latching speed, ensuring optimal door operation. With its compact design, the D310-S fits seamlessly into headers as small as 1 ¾" x 4". Whether for commercial or residential applications, this closer is a reliable solution for maintaining safety and accessibility in any building environment.

Adjustable ADA OHC 105 Hold Open Back Stop

Complete units for aluminum doors and frames are furnished with top arm assembly (adjustable ‘S’ side loading, "A" end loading, "K" end loading or "PT" end loading), adjustable dual purpose 3010-DP bottom pivot set for floor or threshold mounting (side or end loading) and 3010-FS anchor set with all fasteners. "S" type side loading, "A" type, "K" type, or "PT" type end loading top arms are available for center pivoted applications. "A" type, "K" type or "PT" type end loading and "JO" or "VO" type offset arms are optional, but must be specified. "G" and "GE" type pivot sets are available, but must be ordered separately.

Features:

• I.D.C. provides leak-free guaranteed performance under the most demanding conditions.
• Steel spring cap is now on top of closer body utilizing a new high performance O-ring and epoxy sealed threads for double protection.
• New automotive type heavy duty spindle seal replacing old standard O-ring technology.
• Adjustment valves now with two high performance O-rings for double protection.
• Steel end caps incorporating new high performance O-rings and also epoxy sealed threads for double protection.
• ADA closer with adjustable spring power for a range of sizes from 5lb to 8.5lb light and medium spring tension, fully adjustable after installation.
• Barrier free operation to comply with federal accessibility standards (ADA): complying with ANSI A117.1 (4.13.11) available for center pivoted applications.
• Built-in positive back stop and hold-open positions available:
• D310: 105° Back stop with hold-open
• D311: 105° Back stop - no hold-open
• D312: 90° Back stop with hold-open
• D313: 90° Back stop - no hold-open
• Suitable for both center hung (double or single acting) and offset doors.
• Two control valves: Closing speed and latching speed, fully adjustable after installation.
• Fits in an aluminum header or transom bar as small as 1 3/4" x 4".
• Stable hydraulic door check fluid for any climatic operation and constant lubrication
• Optional 3/4" spindle available.

Resources

• Cut Sheet
• Installation Sheet