Product Overview
Calibre 3312 Overhead Concealed Closer - BODY ONLY
- 90° Back Stop with Hold Open
- Adjustable Spring Tension
- Underwriters’ Laboratories Inc. Listed for units without hold open feature. UL10C for positive pressure and certified to conform to UBC 7.2 (1997) BS476 for Fire Safety.
- Built-in positive Back Stop and Hold-Open positions are available: 105° Back Stop with Hold Open, 105° Back Stop No Hold Open, 90° Back Stop with Hold Open, 90° Back Stop No Hold Open
- Handicap (ADA) multi-sized closers with adjustable spring
power for a range of sizes after installation. - Dual Speed Control Valves: Closing and Latching speeds controlled by separate regulating valves, fully adjustable after installation.
- Adjustable CA3010-DP dual purpose radial ball-bearing bottom pivot set is provided for floor or threshold mounted (Side or End Loading) center pivoted installation. CA3010-G and CA3010-GE bottom pivot sets are optional, and must be ordered separately.
- Universal application. Non-handed for left or right door application.
- Installs in an aluminum storefront header or transom as small as 1-3/4" x 4"
- Positive cam centering for alignment and to hold door closed against normal wind or draft conditions.
- Stable hydraulic door check fluid for any climatic operation and provides constant lubrication.
- The 3300-20 Series is the standard 3300 Series OHC door closer assembled with an Extended Spindle Shaft (17/64" longer than standard).
