Hydraulic Door Closers

NHN® 80V Series

Hydraulic Door Closers

NHN 80V Series Overhead Door Closers by KENWA

Standard Square Body with Cover & Accessories. EN Standard Power Adjustable by Spring EN 1154

• Closing Force – Adjustable to EN1154 size 2-4 for 83V, size 3-6 for 85V and size 6-7 for 87V.
• Economic – Low inventory costs and reduced stocking requirements thanks to its stream and non-handed design
• Back Check – Provides a cushioning effect when the door is forcibly thrown open but does not serve as a substitute for a door stop.
• Delayed Action – Provides prolonged closing time to assist passage of trolley’s, wheel chairs and elderly people etc…
• Standard Finishes – Sliver, Dark Brown or Gold. Other finished on request available.
• Guarantee – A free replacement ex-works if any closer proved defective by reason either of faulty manufacture or defect in materials.

Catalog of NHN 80V Series Overhead Door Closers

Closing Force Adjustment

The position indicated by figure ‘A’ is the standard postion of the eccentric shoe. By turning the show 180deg. the position shown in figure ‘B’, the door closing force increases about 25% just before the door closes (during last 10deg.).

Closing Speed Adjustment

Latching Angle Adjustment

Spring Power Adjustment

Turn the spring adjusting screw clockwise the required number of turns to match the door width as indicated in the chart. Where strong draft resistance exists increase the spring power as needed.