Exhaust Fans & Backdraft Dampers

The City of Tulsa’s Water & Sewer Department is seeking a supplier to provide and deliver a set of high‑capacity exhaust fans and matching back‑draft dampers. The fan must be a 20,000 CFM, 5 HP, 460 V centrifugal unit (Cook ACRU‑B series or equivalent) with a static pressure rating of 0.200 in. water column, VFD capability, and a roof‑mounted configuration. The damper must be a gravity‑type Cook BD (or equivalent) sized roughly 48 in × 48 in with a maximum discharge velocity of 2,000 ft/min. Delivery is FOB Tulsa, OK, with a requirement that no single item exceed 500 lb for unloading; the seller is responsible for unloading. A minimum one‑year manufacturer warranty is required, and warranty issues must be responded to within 72 hours. The contract is a one‑year base term, renewable up to four additional one‑year extensions and a possible 90‑day extension. Bids are sealed, mailed or hand‑delivered with no electronic submission accepted.