International Model 231-SA Fixed Medium Tension Spring Overhead Concealed Closer Kit. Complete closer kit includes body with 3/4" long spindle and end arm designed for use with all glass doors. Suitable for doors 30" to 42" wide and up to 96" tall. 105 Degree backstop with no hold open feature.
- Closer designed for use on all glass doors with 3/4" long spindle for better door support.
- 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).
- Choice of "A" Type, "K" Type or "PT" Type end 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.
- Underwriters Laboratories Inc Listed.