Product/Service

HELICAL SCUM SKIMMERS

Under this item the contractor will furnish and install ______ helical scum skimmer(s) a minimum of 18" in diameter as manufactured by Tropodyne in accordance with the specifications and contract documents
Jeffrey-Tropodyne, Division of Tropodyne Corp. this item the contractor will furnish and install ______ helical scum skimmer(s) a minimum of 18" in diameter as manufactured by Tropodyne in accordance with the specifications and contract documents. Each skimmer is for a tank ______ feet wide.
Each helical scum skimmer will be designed to sweep the collected scum up and over a beaching plate and into a discharge trough. The collector mechanism will consist of helical collector blades, bearings, bearing plates, sprockets, drive unit, beaching plate, drive unit, chain, shear pin device and all other appurtenances necessary to make a complete system.

SCUM SKIMMER MACHANISM
All shafting will be cold finished steel (stainless steel) straight and true of ample size to transmit the power required. Each mechanism will consist of a main tube with steel arms welded to the main shafting. A spiral steel blade will be welded to the arms. Each spiral skimmer blade will be provided with an adjustable neoprene wiper backed by a steel strip.

BEACHING PLATE
A plate made of stainless steel, forming an incline beach having a radius to accurately fit the sweep of the reel will be provided. The beach plate will have reverse bends at each end of the radius so the neoprene blade cannot be jammed. The beach plate will have vertical sections to fasten to the end wall of the trough to form a watertight seal.

DRIVE MACHANISM
Each drive unit will consist of a motor type helical gear motor. Gear will be enclosed in a heavy duty moisture and oil proof case. The reducer will be equipped with approved anti-friction bearings throughout. The motor will be NEMA "B," totally enclosed with moisture proof windings. Each unit will operate on ______ volts, ______ phase, ______ hertz and have a minimum horsepower of ______ . Sprockets will be all UHMW. Bearings will be babbitted wall mounted. Drive will be NM78 nonmetallic.

PAINT
All metal (except stainless steel, bronze or galvanized) parts will be painted with one coat of standard shop metal primer.

HARDWARE
All hardware will be 304 stainless steel.

<%=company%>, 676 Saw Mill River Road, Yonkers, New York 10710, Phone: 914-3766700, Fax: 914-376-6735