{"product_id":"commercial-door-closer-grade-1-hydraulic-self-closing-door-closer-adjustable-size-2-5-ul-10c-fire-rated-standard-arm-with-backcheck-die-cast-aluminum-body-doors-up-to-330-lbs","title":"Commercial Door Closer, Grade 1 Hydraulic Self Closing Door Closer, Adjustable Size 2-5, UL 10C Fire Rated, Standard Arm with Backcheck, Die Cast Aluminum Body, Doors up to 330 lbs","description":"\u003cp\u003eMaintain safe, controlled, and reliable door operation with this Commercial Hydraulic Door Closer. Engineered to ANSI\/BHMA A156.4 Grade 1 standards, this professional-grade closer is designed for demanding commercial and institutional applications where durability and performance are essential. The adjustable Size 2-5 spring force provides installation flexibility for a wide range of door configurations. Suitable for doors weighing up to 330 lbs (150 kg) and widths up to 59 inches (1500 mm), it offers dependable operation for office buildings, schools, hospitals, apartment complexes, hotels, retail stores, and industrial facilities. Independent hydraulic adjustment valves allow precise control of both closing and latching speeds, ensuring smooth operation while minimizing noise and door slamming. The integrated backcheck feature helps protect doors and frames from excessive opening force, reducing wear and maintenance costs. Constructed from durable die cast aluminum, this closer combines lightweight design with long-lasting strength. It has been tested for corrosion resistance up to 96 hours and performs reliably in temperatures ranging from -40°C to +60°C. Certified to UL 10C standards and approved for use on fire and smoke doors with a 3-hour fire rating, this hydraulic door closer delivers the safety, reliability, and performance required for modern commercial buildings.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBuilt to ANSI\/BHMA A156.4 Grade 1 standards for dependable performance in demanding commercial environments. Ideal for offices, schools, healthcare facilities, apartment buildings, hotels, warehouses, and retail locations with high daily traffic.\u003c\/li\u003e\n\u003cli\u003eDesigned for flexibility with adjustable closing power suitable for a variety of door sizes and applications. Supports doors weighing up to 330 lbs (150 kg) and widths up to 59 inches (1500 mm), making it suitable for wood, hollow metal, aluminum, and fire-rated doors.\u003c\/li\u003e\n\u003cli\u003eFeatures adjustable closing speed from 180° to 15° and latching speed from 15° to 0° for smooth and controlled operation. Helps reduce door slamming, improve user comfort, and extend the life of door hardware.\u003c\/li\u003e\n\u003cli\u003eBuilt-in backcheck function helps prevent damage caused by forceful door opening. Protects doors, frames, hinges, and surrounding hardware while improving safety in busy commercial environments.\u003c\/li\u003e\n\u003cli\u003eCertified for use on fire and smoke doors with up to 3 hours of fire resistance. Provides dependable self-closing performance required for commercial buildings, educational facilities, healthcare institutions, and public spaces.\u003c\/li\u003e\n\u003cli\u003eManufactured from high-strength die cast aluminum with corrosion resistance tested up to 96 hours. Operates reliably in temperatures from -40°C to +60°C and includes cover and standard arm for professional installation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"National Supply Co.","offers":[{"title":"Default Title","offer_id":48375086940374,"sku":"62803","price":99.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/7401\/4166\/files\/61OY4xgeJjL.jpg?v=1781811335","url":"https:\/\/www.nationalsupplys.com\/products\/commercial-door-closer-grade-1-hydraulic-self-closing-door-closer-adjustable-size-2-5-ul-10c-fire-rated-standard-arm-with-backcheck-die-cast-aluminum-body-doors-up-to-330-lbs","provider":"National Supply Co.","version":"1.0","type":"link"}