Hydraulic Door Closers – NHN Series

NHN 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
83V Series
ENSpring Strength RegularHold Open Back CheckDelayedSlide Arm
2< 850mm | <40kg83V183V83V-BC83V-DA83V-GL
3< 950mm | < 60kg          
4<1100mm | <80kg          
85V Series
ENSpring Strength RegularHold Open Back CheckDelayedSlide Arm
4<1100mm | <80kg85V185V85V-BC85V-DA85V-GL
5<1250mm | <100kg          
6<1400mm | <120kg          
87V Series
ENSpring Strength RegularHold Open Back CheckDelayedSlide Arm
6<1400mm | <120kg87V187V87V-BC87V-DA87V-GL
7<1600mm | <140kg          
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.).
d.c-80v_force
Closing Speed Adjustment
d.c_80v_pwr_adjst
Latching Angle Adjustment
d.c-80v_latch
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. d.c_80v_pwr-adjst_2
Options
Model / ApplicationSize (EN)No.of TurnsDirectionMax. Opening Angle
83V26180
83V 30*180
83V 43+180
85V Fixing Pos.130*180
85V Fixing Pos.1 41+180
85V Fixing Pos.250*180
85V Fixing Pos.2 64+180
87V65180
87V 70*180