BEST EHD9000 Series Delayed Action Advanced Variable Backcheck Extra Heavy-Duty Surface Door Closer

BEST EHD9000 Series Delayed Action Advanced Variable Backcheck Extra Heavy-Duty Surface Door Closer

Award-Winning Extra Heavy-Duty Door Closer for High-Traffic Commercial Applications

The BEST EHD9000 Series Extra Heavy-Duty Surface Door Closer delivers industry-leading reliability and durability for the most demanding commercial applications. This Grade 1 certified closer features delayed action (DA) functionality with advanced variable backcheck (AVB) for parallel arm applications, accommodating doors up to 48" wide interior (42" wide exterior) and up to 180 lb. Built with fully adjustable spring sizes 1-6+50%, the EHD9000 provides Size 1 operation (5 lb opening force) that meets interior barrier-free ADA requirements while delivering exceptional performance in high-traffic environments.

Professional Features & Benefits

• Extra Heavy-Duty Capacity: Designed for doors up to 48" wide interior (42" wide exterior) and up to 180 lb for exceptionally wide, tall, or heavy door applications.
• Advanced Variable Backcheck (AVB): Provides adjustable-intensity hydraulic cushioning on parallel arm applications with valve accessible while closer is installed, preventing uncontrolled door opening to protect door and frame.
• Delayed Action Function: DA option includes separate independent valve allowing for unobstructed passage through opening with customizable delay timing.
• Grade 1 Certified Performance: ANSI/BHMA A156.4 Grade 1 certification with UL and CUL listing ensures professional-grade reliability and code compliance.
• Fully Adjustable Spring System: Spring sizes 1-6+50% with Size 1 (5 lb opening force) meeting interior barrier-free ADA requirements for accessibility compliance.
• Universal Mounting Configuration: Non-handed design works with regular, top jamb, and parallel arm applications with standard components included for all three mounting configurations.
• Tamper-Resistant Adjustments: All valve adjustments use hex key operation for security, with full adjustment capability using BC, Sweep and Latch valves standard.
• Complete Fastener Package: SNDTPK90 standard fasteners include self-drilling, self-tapping, and sex nuts for 1-3/4" thick doors plus machine screws for versatile installation options.

Technical Specifications

• Commercial/Residential: Commercial
• Delay Function: Yes
• Department: Door Hardware
• Duty Level: Heavy Duty
• Fasteners: Self-Drilling, Self-Tapping, Thru Bolts 1-3/4" Door With Machine Screws
• Grade: Grade 1
• PDF:BEST EHD9000 Sell Sheet: https://zensupply.com/content/pdf/best/KAA1589-BEST-EHD9000-Sell-Sheet.pdf
• Product Category: Door Controls
• Product Group: Door Controls
• Product Subgroup: Door Closers - Surface Mounted
• Product Type: Surface Mounted Door Closers
• Series: EHD9000 Series
• Subcategory: Surface Mounted

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness, weight capacity, and mounting configuration (regular, top jamb, or parallel arm).
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for the selected mounting configuration.
3. Prepare door and frame using appropriate fasteners from the SNDTPK90 package including self-drilling, self-tapping, or machine screws based on door construction and thickness.
4. Install closer body and arm assembly according to selected mounting configuration, ensuring proper alignment and secure attachment per manufacturer torque specifications.
5. Adjust backcheck (BC), sweep, and latch valves using hex key tools for optimal door operation, with AVB valve accessible for parallel arm applications while closer is installed.
6. Configure delayed action (DA) valve settings for desired delay timing and unobstructed passage requirements specific to the application.
7. Test closer operation through full range of motion to verify proper function, adjustment settings, and compliance with accessibility requirements. Refer to manufacturer documentation for complete installation details and valve adjustment procedures.

Professional Applications

• High-Traffic Commercial Office Buildings
• Educational Facilities and Universities
• Healthcare Institutions and Hospitals
• Retail and Shopping Centers
• Industrial and Warehouse Facilities
• Government and Municipal Buildings
• Multi-Tenant Residential Properties

Delayed Action Compliance

The DA (Delayed Action) option features a separate independent valve system that allows for unobstructed passage through the door opening. This functionality provides customizable delay timing to meet specific accessibility requirements and traffic flow needs while maintaining proper door closing performance after the delay period expires.

Why Choose BEST Quality?

BEST EHD9000 Series door closers deliver award-winning performance with Grade 1 certification and UL listing for professional reliability in the most demanding applications. Engineered with advanced variable backcheck technology and delayed action functionality, this closer addresses common issues found in other closers to ensure your building remains safe and doors operate as intended. Winner of the SIA New Products and Solutions Award for Lock and Key Solutions, the EHD9000 represents the pinnacle of commercial door closer engineering.