|Bid Closing Date|
|Title||Ventilation Control Equipment- Underground (Mandoors, Airlock Doors and Fire Doors||EOI Posting Date||November-22-16|
|Tender Issue Date||EOI Closing Date||** CLOSED **|
|Status||Open||Last Revised On||November-22-16|
General Overview: Underground ventilation doors are used to isolate and access fans, restrict or regulate airflow and used for a barrier in the event of fire. These doors are needed to allow access by personnel and equipment for production, maintenance and escape purposes.
1. Swing leaf type door. Manually open / closed of either single or double leaf. A mandoor can be included in one of the leafs. Supplier to fabricate steel channel frame, hinges, and door leafs.
2. Swing door (opposing) - two leaf. Operate in opposite directions when opening or closings. Supplier to fabricate channel frame, HSS Door leafs skinned one side, c./w balance rod, balance arms, hinges, primer and high visibility yellow paint. Doors to actuated via electric hydraulic actuator c/w limit switches, brackets, hydraulic cylinder, hydraulic power pack, mounting rack.
3. High Pressure Sectional Steel Overhead Door. Vertical opening. Track mounted and is assembled in sections. Supplier to fabricate channel frame, door panels, roller track, cables, drums, counterbalance spring assembly, overhead trolley assembly, electric operation. Electrical operators shall be CSA/UL approved extra heavy-duty gear head type c/w pre-wired, number coded control panel. Optional equipment may include motion sensors, beacons and horns, thru beam photo cells. Door control to comply with Vale Ontario Operations - Overhead door standardization initiative (ODSI).
4. Personnel travel door (man door). Supplier to fabricate channel frame, drum door, upper and lower door pivots. Airlock chamber consisting of two mandoors at either end, used to access high pressure locations (< 2"w.g. SP). Mandoors to be painted high visibility yellow, Fire doors to painted red.