Concealed Door Closer, Hydraulic Door Damper, Automatic Door Closers with Hold Open, for Home and Commercial

This hydraulic door closer is installed in the door hidden and embedded, suitable for framed door installation.The door closing has buffering, Adjustable closing speed.Features:1. The stopper is fixed with hexagonal screws to realize the interchange between the door being positioned and not positioned.- Positioning Mode: Ventilation and Door Holding. The positioning feature is ideal for situations where you need to keep doors open for air circulation. It can replace the function of a door stop.- Non-Positioning Mode: The door can be opened to a maximum of 180°, and the door will automatically close once opened.2. The door closer adopts a two-stage speed regulation design, you can control the speed at your "door" and "lock" closes. 3. This door closer has a built-in pressure reducing valve, which protects the main body from damage or oil leakage in environments such as strong external pressure or strong wind.4. The door closer uses the IPHONE7 anodizing 9-step coating process, which is waterproof and can be used outdoors for a long time.Basic Information:1. Applicable Door Weight: 15~85 kg2. Applicable Door Width: ≤100 cm3. Using Temperature Range: -30℃~50℃4. Color: Silver5. Product Weight: 1.9 kgNote: The regulating valve cannot protrude from the surface of the door closer, otherwise oil leakage will occur.Package Included:Door Closer Kit x1All Accessories for Assembly

• 【Applicability】Our door closer is suitable for doors weighing 15~85 kg, doors width ≤100 cm. The door closer is ultra-thin with a thickness of 23 mm, and can be used for doors with a minimum thickness of 30 mm. It is hidden embedded in the door installation, suitable for wooden door, aluminum door, iron door, hollow metal door, security door, fireproof door and other framed doors. The maximum opening angle of the door closer is 180°.
• 【Adjustable Closing Speed】The door closer adopts a two-stage speed regulation design. The first speed regulating valve adjusts the locking speed; the second speed regulating valve adjusts the closing speed. Counterclockwise to speed up the closing speed, clockwise to slow down the closing speed. The closing speed is adjustable within the range of 0°~15°.
• 【Positioning and Non-positioning Conversion】The stopper is fixed with hexagonal screws to achieve the interchange between positioning and non-positioning. Tighten the stopper and the door can be positioned; loosen the stopper and the door cannot be positioned.
• <90°.
• 【Pressure reducing valve】This door closer has a built-in pressure reducing valve to protect the main body from damage or oil leakage in environments such as strong external pressure or strong wind. The hydraulic main body has a square shaft, which is sturdy and durable, and the positive and negative forces of the speed regulating valve are precise, ensuring the long-term stability of the door.
• 【Materials】The body is precision-die-casted with high-quality steel, durable seal, and the oil leakage rate is less than one ten-thousandth. High-strength solid steel material, painted surface, pressure-resistant and non-deformable. High-quality waterproof design - the door closer adopts IPHONE7 anodizing 9-step coating process.