V-4 floor spring
Max Door Weight : 70-90kg
Max Door Width : 900mm
Max Door Height : 2200mm
1.Have passed many opening and closing tests,meeting safe application standards;
2.Bult-in pressure relief valve to protect the unit against any abuse from strong pressure or strong wind when closing the door;
3.Filled with high quality anti-icing hydraulic oil,ensuring smooth and flexible operation of mechanical parts at different temperatures;
4.Door openning angel at 116°at your option;
5.90°Stop device or non-stop device at your option;
6.With single closing speed adjusting valves at 116°~0°to match different closing purposes;
7.General designed is suitalbe for opening doors with left/right hand and single/double opening,accessories are available for each means;
- Adjustable axis is designed to install and adjust easily&precisely.
