International Door Closers #221 Fixed Tension Light Spring Overhead Concealed Closer Kit. The Light Spring Tension is most commonly used on interior doors and on exterior doors where conditions permit a lighter spring tension. Complete closer kit for center hung doors with side loading arm. Suitable for doors up to 30" wide and up to 96" tall. 105 Degree backstop with no hold open feature.
- Light Spring Tension - Most common fixed spring tension for interior doors, or exterior doors where conditions allow for the use of a lighter spring tension.
- Two Speed Control Valves: Closing and Latching speeds controlled by separate regulating valves, fully adjustable after installation.
- Stable hydraulic door check fluid for any climatic operation and constant lubrication.
- Positive centering for alignment and to hold door closed against any normal window draft.
- Cast iron body fits in an aluminum header or transom bar as small as 1-3/4" x 4".
- Double or single acting for center hung doors (Door stop applied to frame renders unit single acting).
- "S" Type side loading adjustable arm.
- Adjustable 3010-DP dual purpose radial ball-bearing bottom pivots are provided for floor or threshold mounted (side or end loading) center pivoted installation. 30l0-G and 3010-GE bottom pivot sets are also available.
- 105NHO - Allows door to open up to 105 Degrees with no hold open capability.