9602 19TH AVE SE 2018-01-02 MF Import

SPECIFICATI03S i ILTE1 PLANT The OEP filter plan% specified under this section shall be of the pressure diatom.'cam earth type manufactured by Swimquip, 1". The filter plant shall be a product of a company regularly engaggd in nanufacturm of water filtration equipment with a mintn.n of ten years' experience in manufacturing filtration cwoprent for Public swimming pools. Tl.e filter plant shall consist of a filtering unit, face piping, cast bronze unitrol valve, injection molded hydraulic dis- tribution system and element grid ass'y, gauges, XL Series, all bronze recirculating pump and pump strainer all of vhich shall be manufactured and assembled on a structural foam skid 6y Swimquip, Inc. The filter plant shall be designed and valved to permit reverse flow, backwashing with Swimquip's unitrol valve. (1) FILTER AREA The filter plant shall have a total effective area of square feet. When operated at 1.512 LPN per square foot of filtering area, this filter plant will have a capacity of filtering Gallons in hours and minutes. FILTEP'TANK The filter tank shall be in diameter and shall be melded of fiberglass with a 'minimum shell and head thickness of 1/4" on 16" diameter, 5/16" on 2U" diameter, 0/8" on 24" diameter. All piping shall be through the side of the filter unit In order ttat the lid may be freely removed without any piping disassembly. Tim fitter tank shall be supported by means of structural foam skid. Tie filter tan: shall be designed for 105 pound minimum bursting pressure and tested at 55 psi In accordance with section x of the ASML boiler and pressure vessel code for fiberglass -reinforced plastic pressure vessels. (3) ELEMENT ASS'y Too element Ass'y shall consist of injection molded filter element grids, collection manifold, support manifold, Lie rods and effluent piping all of which shall be non- corrosive structural materials. The e4exent grids shall consist of an injection molded high impact styrene core with a plain weave polypropylene filter fabric septum. The fabric shall have a porosity of 40 CFH per sq. ft. The fabric shall be double heat stitched on the outer perimeter to provide a taut covering. (4) FACE PIPING ) All piping required for the operation of the filter plant shall be included. Piping shall consist of cast bronze unitrol valve con- nected by S.S. band clangs. The operation of the filter and back- wash cycle may be accomplished by the simple manipulation of the valve handle. The unitrol filter control valve shall be fully ported with positive scaling 0-rings on the piston discs. The unitrol valve shall be connected to the tank with band clangs for easy removal. The filter shall be connected to the pump by means of a stainless steel pump connector. (5) RECIRCULATING PUMP AND PUMP STRAINER The pumping unit shall consist of a self -priming single suction centrifugal pump cf the built -together type. The pump volute and seal plate shall be manufactured of bronze especially cast to produce smooth surfaces for water passage. A bronze pump strainer shall be an Integral part of the pump assembly. The strainer lid shall be bronze and secured with manganese bronze "T" head bolts. The seal between the cover and the strainer pot shall be effected by means of an 0-Ring gasket. The strainer baskets shall be molded of hi -temperature, hi -impact styrene with integral lead ballast. The pump impeller shall be an Integral bronze casting of the semi -enclosed type, attached to the motor shaft. A stainless steel shaft seal of the mechanical type shall be provided with ceramic seat and carbon wear ring. A NEMA C faced motor with a drlp proof enclosure shall be bolted to the pump volute. The motor shall be of the capacitor type with silver faced centrifugally operated disconnect switch- ing, and shall he fitted with a themal overload-protectip. of the self -resetting type and a stainless steel shaft. The motor shall be single phase, 60 cycle horse- power for service on 110 or 220 volt electr cai-T supply. The pump and motor unit shall be designed for self -locating assembly, case of maintenance, inspection and service without the use of special tools and without the need to disturb piping. The DIP filter plant as outlined herein shall be Swlnquip No.