product features：
The new nhn80v hydraulic door closer is a door closer with adjustable strength, which is suitable for all places. The new nhn80v hydraulic door closer adopts the latest engineering technology and accurate three-stage speed regulation, which can accurately adjust the door closing and locking speed. It has passed the strict European en1154 certification, en1634-1 certification and CE certification. It is applicable to doors with door width of 850 ~ 1400mm and door weight of 40 ~ 140kg. It has delay function and reverse check function. Normally open function is available. Exquisite appearance, strong and durable, simple installation and adjustment. No door direction requirements, regardless of left and right hands. There is an automatic thermostatic compensator inside to ensure that the lubricating fluid can adapt to the temperature change of high temperature from minus 45C ° to 50c °.
