1657 8 sanitary sewer specifications part 3 pdf engineering 7fbc46eabe688da582a93561080cda1e 6a3e1052d159cd37c87e01bbd26e08327bc24220b0a769146b4973d2dbbf6ade 191×300 _vb5nkdq1ic0c thumb jpg 2019 04 18 09 06 42 0 1000 01 pdf application duplex factory built above ground self priming pump station description a scope 1 the contractor shall furnish and install one fiberglass reinforced automatic be complete with all equipment specified herein installed in polyester resin enclosure principle items of include two horizontal centrifugal v belt motor driven sewage pumps valves internal piping control center heavy duty thermal magnetic circuit breakers starters liquid level system wiring ventilator light operating conditions each have necessary characteristics selected to perform accordance subject provisions paragraph hereafter titled power electrical furnished 3 phase 60 hertz wire 480 volts maintained within plus or minus 10 percent voltage not exceed 132 provide sufficient inside area for maintenance personnel normal operation sheltered free from foul weather consist base support cover that can moved lifting minimum dimensions seven by ten feet six height b materials manufactured molded orthophthalic resins 30 maximum 70 fillers extenders used 2 glass fibers average length ¼ inches major design considerations given structural stability corrosion resistance watertight properties laminates balance mechanical chemical insure long life they must impervious microorganisms mildew mold fungus corrosive liquids gases which reasonably expected present environment surrounding wet well k factor approximately 5 btu hr f sq ft inch such an electric heater more than 3000 watts maintain 90 differential between interior temperature outside air 4 surfaces housing gel coated it suitable thickness formulated service abrasion c color fastness d gloss retention e protection greases oils gasoline other common chemicals pigmented compounded constructed completely encapsulated steel frame adequate motors extend lift points provided assure strength resist deformation structure during shipping handling shell wall hall 16 natural drainage floor concrete pad filled foamed place rigid polyurethane foam closed cell type density pounds give holes through release lines bubble suction discharge grout dams incorporated cavity fill at installation seal pipe joint against entrance hazardous incorporate flange designed securing supplied plans movable without permit overhead access either half removable hasp staple locking device secure over gasketing end panels elements hinged door 27 wide 56 high ¾ full stainless piano hinge perimeter aluminum casing secured handle connected three point latching mechanism latch engage top side bottom security vandalism mounting hardware concealed as prevent ordinary tools ventilation fan shuttered exhaust capacity 550 cfm change once every minute mounted opposite this intake both openings equipped screen cowl rain snow rocks foreign material fused disconnect switch page_text extracted_title num_pages enclosed gasketed 200 watt fixture vapor tight universal centrally located parts constitute physical hazard inspection g 1300 1500 115 volt cord grounding plug ungrounded heaters acceptable specifically pumping raw unscreened domestic sanitary size note is connection areas volute are exposed cast iron no lesser grade class passages recirculation ports large enough passage sphere diameter any trash stringy pass house collection screens devices create nuisance interfere performance permitted certified dimensional drawings indicating locations port submitted engineer prior shipment properly under these gpm 250 total dynamic head 65 feet_________ repriming 25 tdh feet_________________ static lift______________ head______________ consideration anticipated occasionally debris will lodge check valve seat resulting only loss approximate line impeller occurrence considered proper atmosphere unattended so retain while its rated speed open dray leg reprime capable defined centerline prime delivery five minutes on remaining after delivering shut down removed additional standards tests run stream equal greater foot times duplicate displacement rate typical fitted restrictions could serve restrict siphon drop configuration test degree ell set clearances recommended manufacturer manual repeatability demonstrated sequential cycles water data prepared registered professional serviceability demonstrate s satisfaction due has been reducing costs incorporating following features h special required replacement components i plate allowing clearance stoppages simple repairs removing j wear rotating assembly replaceable accomplished entire included bearings shaft unit opening disturbing sole function eliminate 6 cycle requiring l adjustment means external move enable adjusted moving thereby affecting m spare kit there o ring assemble sleeve shims contruction vaned semi non clog ductile integral out vanes back shroud thread onto lockscrew sealed leakage stationary sealing member mated tungsten titanium carbide alloy mating lapped flatness band 8 millionths measured optical flat monochromatic double floating faces lose alignment periods shock loads cause deflection vibration axial radial movement lubricated oil separate reservoir same lubricate 7 warranted four years date should fail first year obligated upon notification new charge owner cost seals thereafter pro rata basis follows failure percentage price 50 75 anti friction ball tapered roller ample withstand thrust designs lubricates spools piece spool flanged npt tapped hole plugs gauges instrumentation drain consists plastic hose quick connect female kamlock fitting sets fittings drains nipple bushing bronze gate male flow swing body ends 125 lbs lever spring threaded into clapper face clear waterway when pin 18 construction utilized bushings entry removal rating 175 psi working pressure 350 hydrostatic way isolation header connections drilled pound standard drip shutoff teflon phenolic resilient facing bonded surface spherical solids escape initial completion close visible indication closure operate solely require similar resistant diaphragms if fabric neoprene inert 9 cleanout larger ease field adjustable varying heads gauge glycerin compound monitor pressures graduated column accuracy scale reading 34 0 140 panel firmly installations hoses pipes centrifugally complying ansi awwa a21 51 c115 53 flanges comply b16 sealant applied before assembling bolt angular faced gasket finish concentric grooves deep spaced apart flexible relieve misalignment stresses blocks supported according good commercial practice being transmitted force main anchored where shown contract drive proof induction starting torque low current ac overloaded condition range 15 hp 1750 rpm nema copper windings transmission assemblies establish meet belts case single driver systems safety less intended computation factors based published request his representative submit calculations clearly express ratio related pitch sheaves number per theoretical horsepower 11 distance shafts combined arc correction established calculated brake requirements guards transmissions sides guard combination consisting expanded perforated solid sheet metal except ½ interference component securely fastened rigidly braced some fixed part burrs sharp edges joints continuous welded may riveted frames spacing tack welds primed mils synthetic primer finished acrylic enamel coating section definitions 253 1967 code marking hazards framework cleaned industrial cleaner coat zinc automotive white dead front enclosures fabricated doors captive closing compartments 12 collar studs controls instruments labeled indicate receptacle fault utility providing vac protected ampere breaker branch highest quality sub screws lockwashers taped accept tapping mount mechanisms sized symmetrical rms interrupting _____ amperes calibration tampering padlocking operator handles exterior compartment interlocks opened off position across starter addition least auxiliary contacts oo fractional break mode cadmium oxide silver coils epoxy moisture durability overload phases easily 13 relays block utilizing melting spindles visual trip pressing reset actuate contact until time spindle resetting snap action thus re establishing convertible settings determined element 20 actual nameplate pushbutton manner incoming protect damage caused reversal unbalance 83 nominal delay minimize trips automatically restart return secondary surge arrester transient surges utilize varistors conductive capability 2000 amps 650 allow disconnected circuits selection 14 selector switches start stop individually select override shutdown but toggle meeting military ms 120 inductive alternator relay electromechanical indicators pilot wired parallel running elapsed digit hours tenths sequence alternation lead circuitry excessive thermostat detect rise indicator stopped because remain locked cooled manually transformer kva stepdown supply primary disconnecting feeder final remote alarm workmanship schematic diagrams compliance applicable specifications forth national nec user serviceable mtw thw coded load dc black red blue interlock source yellow conductor green carrying hot orange identification sizing exception individual 600 conductors loaded 100 nor wires numbered conformance connectors tongue nylon insulated shanks bundled tied extending terminated terminal conduit bundles connecting made flex undue stress insulation held fastening ul listed smooth galvanized core polyvinyl chloride articles 346 347 paint making 17 earth lug n permanent name attached information serial frequency diagram location label adjacent plainly marked etc functional response changes bubbler containing extends sensor contained electronic sense signals remainder continuously permitting read rises lowered actions continue second reaches lag levels described below then occur sensing signal conditioning emi rfi suppression outputs comparators state integrated 108 ambient 55 131 overall repeat display output strain transducer receive input convert proportional distribution omparators filtered pulsations compensated 40 19 85 about overpressure digital meter preset calibrated directly accurate tenth adjustments comparator setpoints accessible hard use artificial simulation introduction optically isolated zero crossover switching immunity noise indicated illumination emitting diode short equivalent contactor assurance severe environmental failures limited exposure elevate temperatures burn further testing conducted discretion fuses board keyed de soldering printed conformal independent contingent silence alert event energize exists audible corrective silencing globe box fixtures cannot stand collect eps 21 vibrating reed deliver cubic hour compressors quantities higher storage reservoirs a300 bell pvc outlet responsibilities operational hydraulic institute recordings correct invited witness facility designated literature copies instructions units done written 22 comprehensive content assume familiar he previously operated exact others descriptions package modes instruction performed startup course preventative him appendices nmtba jic schematics illustrate extent authorized repair interconnections among numbers normally repairable need details substituted partial simplified lieu 23 layout drawing showing continuity specific manuals many different configurations stations selectively portions ability financial relative schedules experience requested also evidence facilities expertise produce warranty warrant defects period rust soils occurring protective recommendations 24 apparatus excepting those consumed bulbs grease packing gaskets rings responsible failing engineers represented proven defective replaced repaired satisfactorily modified labor liability consequential damages liabilities arising product thereof however delays otherwise effective become acceptance purchaser agent sixty days ninety whichever occurs contractual obligations intent accompanying specify show gorman rupp company deemed most products equally efficient prepare bid particular purpose determining awarding obligation substitutions execution desire substitute substitution reason proposed superior efficiency obtains approval was originally laid own expense make structures building accommodate assumed approved reduced amount savings 26 analyze pdf_pages timings