1、Built-in pressure relief valve protects the closer from rough use. Closer mechanism totally immersed in hydraulic fluid.

2、Use low temperature antifreeze hydraulic oil ,ensuring the normal door-closing speed when the temperature is fifty degree below zero degree.

3、Suitable for timber ,metal and tempered glass doors.

4、Over 500,000 cycles of circular testing, quality is ensured.

❉Product Overviews❉

◆ Applicable for glass doors,wooden doors,steel doors and the glass doors of metal frame and wooden frame.

◆ Floor spring comply to EN1154 and ANSI standard,and fire-rated EN1634 standard.

◆ Over 500,000cycles tested without any damage.

◆ Double ways opening with smoothly movement and noiseless,90°stop-device.

◆ Closing speed and latching speed adjustable,latching point accurately at 0°.

◆ All spindle types available for different countries.

◆ Anti-freezing oil and imported seal rings,keep perfect working from -40°to 60°temperature.