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ASSA ABLOY DC175-EV1 Surface-Mounted Hydraulic Cam-Motion Door Closer with Guide Rail
The ASSA ABLOY DC175-EV1 is a high-performance hydraulic cam-motion door closer engineered for precise control of single action doors up to 1100mm width. Certified to EN 1154 CE and BS EN 1154, it offers adjustable closing/latching speeds and integrated back-check, making it ideal for critical fire and smoke protection applications.
Quick Answer
The ASSA ABLOY DC175-EV1 provides robust, EN 1154 compliant hydraulic door control, specifically engineered for fire and smoke protection doors requiring precise closing action.
✓EN 1154 CE Certified for Fire Doors
✓Hydraulic Cam-Motion Mechanism for easier opening
✓Adjustable Closing & Latching Speeds via hydraulic valves
✓Integrated Back-Check Function protects door and frame
✓Surface Mounted with Guide Rail for efficient power transfer
✓Reversible for Left/Right Handed Door Applications
✓Adjustable Power Size EN 3/4 for doors up to 1100mm
The ASSA ABLOY DC175-EV1 is an expertly engineered hydraulic cam-motion door closer, offering precise and reliable door control, particularly for fire and smoke protection applications. Its EN 1154 compliance, adjustable functions, and robust build quality make it a superior choice for professional installations demanding high performance and safety.
✓ Who Should Buy
- •Building architects and specifiers requiring EN 1154 certified hardware for fire-rated door assemblies.
- •Facility managers seeking durable, adjustable door closers for high-traffic public, commercial, or institutional buildings.
- •Door hardware installers looking for a reliable, easy-to-configure surface-mounted closer for single action doors up to 1100mm.
✕ Who Should Avoid
- •Applications specifically requiring integrated hold-open or delayed action functionality, as these are not standard features on the DC175-EV1.
- •Installations on doors exceeding 1100 mm width or requiring higher power sizes than EN 4.
Product Overview
The ASSA ABLOY DC175-EV1 represents a sophisticated engineering solution for controlled door closing in diverse architectural environments, particularly where fire and smoke protection are paramount. This hydraulic cam-motion door closer is designed for surface mounting with an efficient guide rail system, ensuring seamless operation for single action doors up to 1100 mm wide. Its robust construction features an aluminium and steel body, finished in a durable Silver EV1, providing both aesthetic integration and long-term reliability.
Engineered with an adjustable power size ranging from EN 3 to EN 4, the DC175-EV1 allows for precise customization of closing force to suit specific door dimensions and traffic requirements. Key control parameters, including variable closing speed and variable latching speed, are easily adjusted via integrated valves, enabling optimized door movement and secure closure. The inclusion of an active back-check function protects both the door and surrounding structures from impact during rapid opening, extending the lifespan of the entire door assembly. With its EN 1154 CE and BS EN 1154 certifications, the DC175-EV1 is a proven component for compliant fire-rated door assemblies, ensuring automatic and controlled closing in emergency scenarios.
| Brand | assa-abloy |
| Model Name | N/A |
| Category | Door Closer |
| Closer Type | hydraulic-cam-motion |
| Series | DC175 |
| Model Year | N/A |
| Country Of Origin | N/A |
| Intended Use | Controlled closing for single action doors |
| Suitable For | Fire and smoke protection doors |
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Engineering Analysis
The ASSA ABLOY DC175-EV1's operational efficacy is rooted in its advanced hydraulic cam-motion mechanism. Unlike traditional rack-and-pinion systems, the cam-motion design delivers a progressive reduction in opening resistance, making doors easier to operate, especially for individuals with limited mobility. This is achieved by converting the rotary motion of the door into a linear movement within the closer's hydraulic cylinder via a cam, ensuring a smooth, consistent force transmission throughout the opening and closing cycles.
Central to its performance are the finely calibrated hydraulic valves. These adjustable valves grant precise control over the crucial closing and latching phases. The variable closing speed valve dictates the door's travel from its maximum opening angle of 160 degrees down to the latching point, preventing slamming and ensuring safe passage. Subsequently, the variable latching speed valve provides a controlled burst of force in the final few degrees of closure, ensuring the door firmly engages with the lock or latch without undue impact. This dual-stage control is critical for maintaining security and minimizing wear.
The integrated back-check function is a passive hydraulic damping system activated when the door is opened beyond a pre-set angle, typically around 70-80 degrees. It acts as a hydraulic cushion, resisting violent opening and preventing damage to the door, frame, and adjacent walls. This feature significantly enhances the durability of the door assembly in high-traffic or wind-prone areas.
Crucially, the DC175-EV1's compliance with EN 1154 CE and BS EN 1154 standards underscores its engineering integrity and suitability for fire and smoke protection doors. The EN 1154 standard specifies requirements for controlled door closing devices, including durability, efficiency, and resistance to environmental factors. Certification ensures that the closer will perform reliably in emergency situations, ensuring the automatic closure of fire doors to compartmentalize smoke and flames. While a specific cycle test rating is not explicitly provided, its EN 1154 certification inherently mandates rigorous durability testing, ensuring sustained operational reliability over its intended lifespan.
Technical Support & FAQs
Engineering Analysis
The ASSA ABLOY DC175-EV1's operational efficacy is rooted in its advanced hydraulic cam-motion mechanism. Unlike traditional rack-and-pinion systems, the cam-motion design delivers a progressive reduction in opening resistance, making doors easier to operate, especially for individuals with limited mobility. This is achieved by converting the rotary motion of the door into a linear movement within the closer's hydraulic cylinder via a cam, ensuring a smooth, consistent force transmission throughout the opening and closing cycles.
Central to its performance are the finely calibrated hydraulic valves. These adjustable valves grant precise control over the crucial closing and latching phases. The variable closing speed valve dictates the door's travel from its maximum opening angle of 160 degrees down to the latching point, preventing slamming and ensuring safe passage. Subsequently, the variable latching speed valve provides a controlled burst of force in the final few degrees of closure, ensuring the door firmly engages with the lock or latch without undue impact. This dual-stage control is critical for maintaining security and minimizing wear.
The integrated back-check function is a passive hydraulic damping system activated when the door is opened beyond a pre-set angle, typically around 70-80 degrees. It acts as a hydraulic cushion, resisting violent opening and preventing damage to the door, frame, and adjacent walls. This feature significantly enhances the durability of the door assembly in high-traffic or wind-prone areas.
Crucially, the DC175-EV1's compliance with EN 1154 CE and BS EN 1154 standards underscores its engineering integrity and suitability for fire and smoke protection doors. The EN 1154 standard specifies requirements for controlled door closing devices, including durability, efficiency, and resistance to environmental factors. Certification ensures that the closer will perform reliably in emergency situations, ensuring the automatic closure of fire doors to compartmentalize smoke and flames. While a specific cycle test rating is not explicitly provided, its EN 1154 certification inherently mandates rigorous durability testing, ensuring sustained operational reliability over its intended lifespan.