Norton 7570 LH 689 Grade 1 Security Door Closer

Norton 7570 LH 689 Grade 1 Security Closer offers robust protection and reliability, making it an ideal choice for high-security environments such as prisons, government buildings, and schools. This regular rigid security arm door closer is adjustable from sizes 1 to 6, accommodating various door requirements. Featuring a security cover and tamper-resistant Torx screws, the 7570 is engineered to prevent disassembly, ensuring durability against vandalism and abuse. Constructed with a cast aluminum alloy body, this closer is surface-mounted and projects only 2-3/16" from the door's surface, maintaining a sleek profile. The adjustable backcheck cushioning and multi-size spring power settings enhance performance, allowing for smooth operation under extreme temperatures, ranging from -40°F to high heat. With independent valves for regulating sweep and latch speed, you can fine-tune the door’s closing action to meet specific needs. Designed for commercial use, the Norton 7570 Security Closer is fire-rated for three hours, providing peace of mind in emergency situations. The matte silver finish (689/US28) adds a contemporary touch, while its left-handed orientation ensures proper installation on the pull side of doors. Trust Norton to deliver security and functionality in one reliable package.

Grade 1 Security Closer

Regular Rigid Security Arm Door Closer, Adjustable Size 1-6, Left Hand, Security Cover, Torx Screws, Aluminum Painted

The 7570 Security Closer Line uses Norton's 7500 series door closers with a security cover and a variety of regular rigid and parallel arms and track options. Fixed link arm assemblies, permanent joints, orbital riveted elbows, arm shoe, soffit joints and Torx¬ screws with tread lock prevent disassembly. Torx screws are available standard for tamper resistance. Norton 7570 High Security Closers are designed for use in prisons, government buildings, schools, financial institutions, or any installation where vandalism, abuse, escape, personal injury, or damage to doors, walls, and hardware are major concerns.

The Security Closer Line uses Norton's 7500 series door closers with a variety of regular rigid and parallel arms and track options.

Norton's 7500 and 8000 series door closers are also offered with some of the same arm options as the 7570 but without the security cover. Torx screws are available standard for tamper resistance. These closers are utilized in schools and industrial environments where heavy abuse and vandalism may occur.

• Closers for interior and exterior doors shall be full rack-and-pinion type with cast aluminum alloy body.
• Closers shall be surface mounted and shall project no more that 2-3/16" from the surface of the door.
• Closers shall be reversible but supplied with a handed metal cover. Closer fluid shall contain lubricity and anti-oxidation agents.
• Closer fluid shall maintain stable viscosity to allow door closer to perform in temperatures ranging from extremely high to as low as -40°F.
• Closers shall have multi-size spring power adjustment to permit setting of spring from 1 through 6.
• Closers shall have two non-critical valves, hex key adjusted, to independently regulate sweep and latch speed.
• Closers shall have backcheck cushioning controlled by a hex key adjustable valve.
• Closers shall have backcheck position controlled by a hex key adjustable valve.
• [Closers shall have adjustable delayed action closing controlled by a hex key adjustable valve.]
• **Closers shall be enclosed in a [plated] [sprayed] metal cover.
• Closers to be Norton® [7570].
• Covers shall be fastened to the body at four points, two at the top and two at the bottom to prevent prying.

Resources

• 7570 Security Closer
• 7570 Series Security Closers Cut Sheet
• 7570/7770 - Regular Rigid Arm, Non-Hold Open Only
• CLP7570/CLP7770 - CloserPlus
• Norton Surface Closers Catalog
• PR7570/PR7770 - Parallel Rigid Arm, Non-Hold Open or Hold Open