
517
Single Horizontal Sliding U.L. Rated 3-Hour Fire Door
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Summary
Enviro's U.L Rated 3-Hour sliding Fire Door with your choice of manual or power operation. Available in industrial, cooler or freezer construction.
Features
- Patented hydraulic power system for speed and longlife (25” per second).
- Unitized high strength panel.
- Heavy duty hardware.
- Internal steel mounting plates for solid hardware anchor.
- Adjustable pull-in device for in-field adjustments.
- Maintains positive pull-in and ensures tight sealing.
- Automatic door closing system.
- Bottom guidance system positively maintains door position. Ensures fast, controlled operation. Minimizes gasket wear.
- Reversing edge provides full height reversing whenthe door comes in contact with an object.
- Five year warranty on hydraulic operator.
- Available in industrial, and cooler or freezer construction.
Door Sizes
- Minimum: 5' x 7'
- Maximum: 12’-4” x 10’-8”
(Other sizes available - Consult factory.)
Panel Construction
- Unitized design.
- Shell constructed of 20 gauge galvanized steel. (Stainless steel available as an option.)
- 16 gauge formed galvanized steel capping.
- 16 gauge inner C-channel.
Insulation
- EPS U.L. rated insulation.
- R-18 rated or R-30 rated.
Hydraulic System
- 1 h.p. totally enclosed, low speed, high torque motor.
- NEMA-4 rated enclosure.
Operation
Manual or Hydraulic
Hydraulic operation:
- Open/close at 25"/second.
Performance Features
- Reversing edge for instant stop/reverse.
- Weighted cable operated closing system with fuse link disconnect and latch releasing mechanism.
Options
- Partial opening (with (2) push button switches to permit partial door opening and automatic closing). Adjustable time delay
included. - Extra push button actuators or pull cords (one pair std.).
- Photoeyes - actuator or reversing.
- Radio control.
- Loop detector system.
- Time delay close.
- Metal hood (exterior application).
- Color (consult factory).
- Remote mount hydraulic operator.
- Future power.
- Interface into automated alarm systems.
- 400 series stainless steel door panel.
- Fusible link disconnect on opposite side of wall.
Warranty
- Five years on hydraulic operator. One year on all components.

